Why do we listen to Tech CEOs for predictions?

They have clearly a conflict of interest. We assume that they have insight that we don't have. This may be the case - or it is not. But even if they did, why should they tell the truth? They are telling you things that benefit them. If they would not, they would leave the pool of tech CEOs. If the CEO of Anthropic really would believe that Claude Code would replace ALL programmers in 1 year, he would only hand out employment contracts for one year max.

Vibe Coding watching is like 3d printer watching

Hypnotizing into uselessness, but hard to stop. Useful enough to be dangerous but there are better things to do. For now discipline is key, but discipline depletes

base36 in rust

base36 are a-z and 0-9. This is great when computers and humans are working together as it is easy to spell out. It is also short. I can just do an integer auto-increment and get quite small ids. Here is a reusable rust implementation

const BASE36_CHARS: &[u8; 36] = b"0123456789abcdefghijklmnopqrstuvwxyz";

// Lookup table for fast base36 to digit conversion
const BASE36_DECODE: [u8; 256] = {
    let mut table = [255u8; 256];
    let mut i = 0;
    while i < 10 {
        table[(b'0' + i) as usize] = i;
        i += 1;
    }
    let mut i = 0;
    while i < 26 {
        table[(b'a' + i) as usize] = i + 10;
        i += 1;
    }
    table
};

#[inline(always)]
pub fn u64_to_base36(value: u64) -> String {
    // Specialized implementations for different ranges for maximum performance
    match value {
        0 => "0".to_string(),
        1..=35 => unsafe { String::from_utf8_unchecked(vec![BASE36_CHARS[value as usize]]) },
        36..=1295 => {
            let d1 = (value % 36) as usize;
            let d0 = (value / 36) as usize;
            unsafe { String::from_utf8_unchecked(vec![BASE36_CHARS[d0], BASE36_CHARS[d1]]) }
        }
        1296..=46655 => {
            let mut v = value;
            let d2 = (v % 36) as usize;
            v /= 36;
            let d1 = (v % 36) as usize;
            let d0 = (v / 36) as usize;
            unsafe {
                String::from_utf8_unchecked(vec![
                    BASE36_CHARS[d0],
                    BASE36_CHARS[d1],
                    BASE36_CHARS[d2],
                ])
            }
        }
        _ => {
            // General case for larger numbers
            let mut val = value;
            let mut buffer: [u8; 13] = [0; 13]; // Maximum length of u64 in base36 is 13
            let mut pos = 13;

            // Optimized division loop - compiler can optimize division by constant
            while val > 0 {
                pos -= 1;
                buffer[pos] = BASE36_CHARS[(val % 36) as usize];
                val /= 36;
            }

            // SAFETY: We only write valid ASCII characters
            unsafe { String::from_utf8_unchecked(buffer[pos..].to_vec()) }
        }
    }
}

#[inline(always)]
pub fn base36_to_u64(s: &str) -> Result {
    if s.is_empty() {
        return Err("Empty string".to_string());
    }

    let bytes = s.as_bytes();

    // Fast path for common single digit case
    if bytes.len() == 1 {
        let digit = BASE36_DECODE[bytes[0] as usize];
        if digit == 255 {
            return Err(format!(
                "Invalid character '{}' in base36 string",
                bytes[0] as char
            ));
        }
        return Ok(digit as u64);
    }

    let mut result: u64 = 0;
    let mut i = 0;

    // Process 2 digits at a time when possible for better performance
    while i + 1 < bytes.len() {
        let d0 = BASE36_DECODE[bytes[i] as usize];
        let d1 = BASE36_DECODE[bytes[i + 1] as usize];

        if d0 == 255 || d1 == 255 {
            return Err("Invalid character in base36 string".to_string());
        }

        // result = result * 36^2 + d0 * 36 + d1
        result = match result
            .checked_mul(1296)
            .and_then(|r| r.checked_add((d0 as u64) * 36 + d1 as u64))
        {
            Some(val) => val,
            None => return Err("Overflow while parsing base36 string".to_string()),
        };

        i += 2;
    }

    // Handle remaining single digit
    if i < bytes.len() {
        let digit = BASE36_DECODE[bytes[i] as usize];
        if digit == 255 {
            return Err("Invalid character in base36 string".to_string());
        }

        result = match result
            .checked_mul(36)
            .and_then(|r| r.checked_add(digit as u64))
        {
            Some(val) => val,
            None => return Err("Overflow while parsing base36 string".to_string()),
        };
    }

    Ok(result)
}

/// Encode a u128 value to base36 string (useful for UUIDs which are 128 bits)
#[inline]
pub fn u128_to_base36(value: u128) -> String {
    if value == 0 {
        return "0".to_string();
    }

    // Maximum length of u128 in base36 is 25 characters
    let mut buffer: [u8; 25] = [0; 25];
    let mut pos = 25;
    let mut val = value;

    while val > 0 {
        pos -= 1;
        buffer[pos] = BASE36_CHARS[(val % 36) as usize];
        val /= 36;
    }

    // SAFETY: We only write valid ASCII characters
    unsafe { String::from_utf8_unchecked(buffer[pos..].to_vec()) }
}

/// Decode a base36 string to u128 (useful for UUIDs which are 128 bits)
#[inline]
pub fn base36_to_u128(s: &str) -> Result {
    if s.is_empty() {
        return Err("Empty string".to_string());
    }

    let bytes = s.as_bytes();
    let mut result: u128 = 0;

    for &byte in bytes {
        let digit = BASE36_DECODE[byte as usize];
        if digit == 255 {
            return Err(format!(
                "Invalid character '{}' in base36 string",
                byte as char
            ));
        }

        result = match result
            .checked_mul(36)
            .and_then(|r| r.checked_add(digit as u128))
        {
            Some(val) => val,
            None => return Err("Overflow while parsing base36 string".to_string()),
        };
    }

    Ok(result)
}

/// Encode arbitrary binary data to base36 string
/// Treats the byte slice as a big-endian unsigned integer
#[inline]
pub fn bytes_to_base36(bytes: &[u8]) -> String {
    if bytes.is_empty() || bytes.iter().all(|&b| b == 0) {
        return "0".to_string();
    }

    // Skip leading zeros
    let start = bytes.iter().position(|&b| b != 0).unwrap_or(0);
    let bytes = &bytes[start..];

    if bytes.is_empty() {
        return "0".to_string();
    }

    // For small byte arrays, use u128 fast path
    if bytes.len() <= 16 {
        let mut value: u128 = 0;
        for &byte in bytes {
            value = (value << 8) | (byte as u128);
        }
        return u128_to_base36(value);
    }

    // For larger byte arrays, use arbitrary precision arithmetic
    // We'll work with the bytes directly using schoolbook division
    let mut digits = bytes.to_vec();
    let mut result = Vec::new();

    while !digits.is_empty() && !(digits.len() == 1 && digits[0] == 0) {
        let mut remainder: u16 = 0;
        let mut new_digits = Vec::with_capacity(digits.len());

        for &digit in &digits {
            let current = (remainder << 8) | (digit as u16);
            let quotient = current / 36;
            remainder = current % 36;

            if !new_digits.is_empty() || quotient > 0 {
                new_digits.push(quotient as u8);
            }
        }

        result.push(BASE36_CHARS[remainder as usize]);
        digits = new_digits;
    }

    if result.is_empty() {
        return "0".to_string();
    }

    result.reverse();
    // SAFETY: We only use valid ASCII characters from BASE36_CHARS
    unsafe { String::from_utf8_unchecked(result) }
}

/// Decode a base36 string to binary data
/// Returns the minimal byte representation (no leading zeros)
#[inline]
pub fn base36_to_bytes(s: &str) -> Result, String> {
    if s.is_empty() {
        return Err("Empty string".to_string());
    }

    // For short strings that fit in u128, use fast path
    if s.len() <= 25 {
        let value = base36_to_u128(s)?;
        if value == 0 {
            return Ok(vec![0]);
        }

        // Convert u128 to bytes, removing leading zeros
        let all_bytes = value.to_be_bytes();
        let start = all_bytes.iter().position(|&b| b != 0).unwrap_or(15);
        return Ok(all_bytes[start..].to_vec());
    }

    // For longer strings, use arbitrary precision arithmetic
    let input_bytes = s.as_bytes();

    // Validate all characters first
    for &byte in input_bytes {
        if BASE36_DECODE[byte as usize] == 255 {
            return Err(format!(
                "Invalid character '{}' in base36 string",
                byte as char
            ));
        }
    }

    // Convert base36 digits to a vector
    let mut digits: Vec = input_bytes
        .iter()
        .map(|&b| BASE36_DECODE[b as usize])
        .collect();

    let mut result = Vec::new();

    while !digits.is_empty() && !(digits.len() == 1 && digits[0] == 0) {
        let mut remainder: u16 = 0;
        let mut new_digits = Vec::with_capacity(digits.len());

        for &digit in &digits {
            let current = remainder * 36 + (digit as u16);
            let quotient = current / 256;
            remainder = current % 256;

            if !new_digits.is_empty() || quotient > 0 {
                new_digits.push(quotient as u8);
            }
        }

        result.push(remainder as u8);
        digits = new_digits;
    }

    if result.is_empty() {
        return Ok(vec![0]);
    }

    result.reverse();
    Ok(result)
}

/// Decode a base36 string to a fixed-size byte array
/// Pads with leading zeros if necessary, returns error if result is too large
#[inline]
pub fn base36_to_bytes_fixed(s: &str) -> Result<[u8; N], String> {
    let bytes = base36_to_bytes(s)?;

    if bytes.len() > N {
        return Err(format!(
            "Value too large: {} bytes, expected at most {}",
            bytes.len(),
            N
        ));
    }

    let mut result = [0u8; N];
    let offset = N - bytes.len();
    result[offset..].copy_from_slice(&bytes);
    Ok(result)
}

// Ultra-fast versions without bounds checking for internal use
#[inline(always)]
pub fn u64_to_base36_unchecked(value: u64) -> String {
    // Use the same optimized approach but without error checking
    u64_to_base36(value) // Safe to call since we know input is valid
}

#[inline(always)]
pub fn base36_to_u64_unchecked(s: &str) -> u64 {
    let bytes = s.as_bytes();

    // Unroll for common short cases
    match bytes.len() {
        1 => BASE36_DECODE[bytes[0] as usize] as u64,
        2 => {
            let d0 = BASE36_DECODE[bytes[0] as usize] as u64;
            let d1 = BASE36_DECODE[bytes[1] as usize] as u64;
            d0 * 36 + d1
        }
        3 => {
            let d0 = BASE36_DECODE[bytes[0] as usize] as u64;
            let d1 = BASE36_DECODE[bytes[1] as usize] as u64;
            let d2 = BASE36_DECODE[bytes[2] as usize] as u64;
            (d0 * 36 + d1) * 36 + d2
        }
        _ => {
            let mut result: u64 = 0;
            for &byte in bytes {
                result = result * 36 + (BASE36_DECODE[byte as usize] as u64);
            }
            result
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_u64_to_base36() {
        assert_eq!(u64_to_base36(0), "0");
        assert_eq!(u64_to_base36(1), "1");
        assert_eq!(u64_to_base36(35), "z");
        assert_eq!(u64_to_base36(36), "10");
        assert_eq!(u64_to_base36(1296), "100");
        assert_eq!(u64_to_base36(46656), "1000");
    }

    #[test]
    fn test_base36_to_u64() {
        assert_eq!(base36_to_u64("0").unwrap(), 0);
        assert_eq!(base36_to_u64("1").unwrap(), 1);
        assert_eq!(base36_to_u64("z").unwrap(), 35);
        assert_eq!(base36_to_u64("10").unwrap(), 36);
        assert_eq!(base36_to_u64("100").unwrap(), 1296);
        assert_eq!(base36_to_u64("1000").unwrap(), 46656);
    }

    #[test]
    fn test_base36_to_u64_errors() {
        assert!(base36_to_u64("").is_err());
        assert!(base36_to_u64("Z").is_err());
        assert!(base36_to_u64("!").is_err());
        assert!(base36_to_u64("abc123xyz!").is_err());
    }

    #[test]
    fn test_roundtrip_small_values() {
        for i in 0..1000 {
            let base36 = u64_to_base36(i);
            let back = base36_to_u64(&base36).unwrap();
            assert_eq!(i, back, "Roundtrip failed for {i}");
        }
    }

    #[test]
    fn test_roundtrip_edge_cases() {
        let test_values = vec![
            0,
            1,
            35,
            36,
            1295,
            1296,
            46655,
            46656,
            u64::MAX / 2,
            u64::MAX - 1,
            u64::MAX,
        ];

        for value in test_values {
            let base36 = u64_to_base36(value);
            let back = base36_to_u64(&base36).unwrap();
            assert_eq!(value, back, "Roundtrip failed for {value}");
        }
    }

    #[test]
    fn test_roundtrip_random_samples() {
        let test_values = vec![
            123456789,
            987654321,
            1_000_000_000,
            10_000_000_000,
            100_000_000_000,
            1_000_000_000_000,
        ];

        for value in test_values {
            let base36 = u64_to_base36(value);
            let back = base36_to_u64(&base36).unwrap();
            assert_eq!(value, back, "Roundtrip failed for {value}");
        }
    }

    #[test]
    fn test_max_u64_base36() {
        let max_base36 = u64_to_base36(u64::MAX);
        assert_eq!(max_base36, "3w5e11264sgsf");
        assert_eq!(base36_to_u64(&max_base36).unwrap(), u64::MAX);
    }

    #[test]
    fn test_overflow_detection() {
        assert!(base36_to_u64("3w5e11264sgsg").is_err());
        assert!(base36_to_u64("zzzzzzzzzzzzzz").is_err());
    }

    #[test]
    fn test_unchecked_versions() {
        // Test unchecked versions match checked versions for valid inputs
        for i in 0..10000 {
            assert_eq!(u64_to_base36(i), u64_to_base36_unchecked(i));
            let s = u64_to_base36(i);
            assert_eq!(base36_to_u64(&s).unwrap(), base36_to_u64_unchecked(&s));
        }
    }

    #[test]
    fn test_u64_to_base36_specific_ranges() {
        // Test value 0 (line 23)
        assert_eq!(u64_to_base36(0), "0");

        // Test single digit range 1..=35 (lines 24)
        assert_eq!(u64_to_base36(1), "1");
        assert_eq!(u64_to_base36(35), "z");

        // Test two digit range 36..=1295 (lines 25-29)
        assert_eq!(u64_to_base36(36), "10");
        assert_eq!(u64_to_base36(1295), "zz");
        assert_eq!(u64_to_base36(100), "2s");

        // Test three digit range 1296..=46655 (lines 30-42)
        assert_eq!(u64_to_base36(1296), "100");
        assert_eq!(u64_to_base36(46655), "zzz");
        assert_eq!(u64_to_base36(5000), "3uw");

        // Test general case _ (lines 44-59)
        assert_eq!(u64_to_base36(46656), "1000");
        assert_eq!(u64_to_base36(1000000), "lfls");
        assert_eq!(u64_to_base36(u64::MAX), "3w5e11264sgsf");
    }

    #[test]
    fn test_base36_to_u64_specific_cases() {
        // Test empty string error (lines 65-67)
        match base36_to_u64("") {
            Err(msg) => assert_eq!(msg, "Empty string"),
            Ok(_) => panic!("Should have failed"),
        }

        // Test single digit path (lines 72-80)
        assert_eq!(base36_to_u64("0").unwrap(), 0);
        assert_eq!(base36_to_u64("9").unwrap(), 9);
        assert_eq!(base36_to_u64("a").unwrap(), 10);
        assert_eq!(base36_to_u64("z").unwrap(), 35);

        // Test invalid single character (lines 74-78)
        match base36_to_u64("@") {
            Err(msg) => assert!(msg.contains("Invalid character")),
            Ok(_) => panic!("Should have failed"),
        }

        // Test two digit processing (lines 87-104)
        assert_eq!(base36_to_u64("10").unwrap(), 36);
        assert_eq!(base36_to_u64("zz").unwrap(), 1295);

        // Test invalid character in two digit (lines 91-93)
        match base36_to_u64("a@") {
            Err(msg) => assert_eq!(msg, "Invalid character in base36 string"),
            Ok(_) => panic!("Should have failed"),
        }

        // Test overflow in multiplication (lines 96-102)
        let overflow_str = "zzzzzzzzzzzzzzzzzzzz"; // Very long string
        match base36_to_u64(overflow_str) {
            Err(msg) => assert_eq!(msg, "Overflow while parsing base36 string"),
            Ok(_) => panic!("Should have failed"),
        }

        // Test single remaining digit (lines 108-123)
        assert_eq!(base36_to_u64("abc").unwrap(), 13368); // 10*36*36 + 11*36 + 12

        // Test invalid remaining digit (lines 110-112)
        match base36_to_u64("ab@") {
            Err(msg) => assert_eq!(msg, "Invalid character in base36 string"),
            Ok(_) => panic!("Should have failed"),
        }
    }

    #[test]
    fn test_base36_to_u64_unchecked_specific_cases() {
        // Test 1 character case (line 139)
        assert_eq!(base36_to_u64_unchecked("0"), 0);
        assert_eq!(base36_to_u64_unchecked("z"), 35);

        // Test 2 character case (lines 140-143)
        assert_eq!(base36_to_u64_unchecked("10"), 36);
        assert_eq!(base36_to_u64_unchecked("zz"), 1295);

        // Test 3 character case (lines 145-149)
        assert_eq!(base36_to_u64_unchecked("100"), 1296);
        assert_eq!(base36_to_u64_unchecked("zzz"), 46655);

        // Test general case (lines 151-156)
        assert_eq!(base36_to_u64_unchecked("1000"), 46656);
        assert_eq!(base36_to_u64_unchecked("abc123"), 623698779);
    }

    #[test]
    fn test_u64_to_base36_unchecked_coverage() {
        // Test that unchecked version calls the regular version (line 130)
        assert_eq!(u64_to_base36_unchecked(12345), u64_to_base36(12345));
        assert_eq!(u64_to_base36_unchecked(0), "0");
        assert_eq!(u64_to_base36_unchecked(u64::MAX), "3w5e11264sgsf");
    }

    #[test]
    fn test_lookup_table_bounds() {
        // Test that our lookup table handles all possible byte values
        for i in 0..=255 {
            let val = BASE36_DECODE[i];
            if i >= b'0' as usize && i <= b'9' as usize {
                assert_eq!(val, (i - b'0' as usize) as u8);
            } else if i >= b'a' as usize && i <= b'z' as usize {
                assert_eq!(val, (i - b'a' as usize + 10) as u8);
            } else {
                assert_eq!(val, 255);
            }
        }
    }

    #[test]
    fn test_base36_chars_array() {
        // Test that BASE36_CHARS contains expected characters
        assert_eq!(BASE36_CHARS[0], b'0');
        assert_eq!(BASE36_CHARS[9], b'9');
        assert_eq!(BASE36_CHARS[10], b'a');
        assert_eq!(BASE36_CHARS[35], b'z');
        assert_eq!(BASE36_CHARS.len(), 36);
    }

    #[test]
    fn test_base36_decode_lookup_table_comprehensive() {
        // Test that BASE36_DECODE lookup table is correctly initialized
        // Test digits 0-9
        for i in 0..10 {
            let char_byte = b'0' + i;
            assert_eq!(BASE36_DECODE[char_byte as usize], i);
        }

        // Test letters a-z
        for i in 0..26 {
            let char_byte = b'a' + i;
            assert_eq!(BASE36_DECODE[char_byte as usize], i + 10);
        }

        // Test that uppercase letters are invalid (should be 255)
        for i in 0..26 {
            let char_byte = b'A' + i;
            assert_eq!(BASE36_DECODE[char_byte as usize], 255);
        }

        // Test that other characters are invalid (should be 255)
        assert_eq!(BASE36_DECODE[b'@' as usize], 255);
        assert_eq!(BASE36_DECODE[b'[' as usize], 255);
        assert_eq!(BASE36_DECODE[b'`' as usize], 255);
        assert_eq!(BASE36_DECODE[b'{' as usize], 255);
        assert_eq!(BASE36_DECODE[255], 255);
    }

    #[test]
    fn test_u64_to_base36_boundary_values() {
        // Test exact boundary values for the optimized ranges
        assert_eq!(u64_to_base36(0), "0");
        assert_eq!(u64_to_base36(1), "1");
        assert_eq!(u64_to_base36(35), "z");
        assert_eq!(u64_to_base36(36), "10");
        assert_eq!(u64_to_base36(1295), "zz");
        assert_eq!(u64_to_base36(1296), "100");
        assert_eq!(u64_to_base36(46655), "zzz");
        assert_eq!(u64_to_base36(46656), "1000");
    }

    #[test]
    fn test_base36_to_u64_single_digit_edge_cases() {
        // Test all valid single digits
        for i in 0..36 {
            let base36_char = BASE36_CHARS[i] as char;
            let base36_string = base36_char.to_string();
            let result = base36_to_u64(&base36_string).unwrap();
            assert_eq!(result, i as u64);
        }
    }

    #[test]
    fn test_base36_to_u64_two_digit_processing() {
        // Test the two-digit processing path (lines 87-104)
        assert_eq!(base36_to_u64("10").unwrap(), 36);
        assert_eq!(base36_to_u64("11").unwrap(), 37);
        assert_eq!(base36_to_u64("zz").unwrap(), 1295);
        assert_eq!(base36_to_u64("az").unwrap(), 10 * 36 + 35);
        assert_eq!(base36_to_u64("za").unwrap(), 35 * 36 + 10);
    }

    #[test]
    fn test_base36_to_u64_overflow_boundary() {
        // Test values near the overflow boundary
        let max_valid = u64_to_base36(u64::MAX);
        assert_eq!(base36_to_u64(&max_valid).unwrap(), u64::MAX);

        // Test a string that should cause overflow
        let overflow_str = "zzzzzzzzzzzzzzzz"; // 16 z's - much larger than u64::MAX
        match base36_to_u64(overflow_str) {
            Err(msg) => assert_eq!(msg, "Overflow while parsing base36 string"),
            Ok(_) => panic!("Should have overflowed"),
        }
    }

    #[test]
    fn test_base36_to_u64_invalid_characters() {
        // Test various invalid characters
        let invalid_cases = vec![
            ("A", "Invalid character 'A' in base36 string"),
            ("Z", "Invalid character 'Z' in base36 string"),
            ("@", "Invalid character '@' in base36 string"),
            ("[", "Invalid character '[' in base36 string"),
            ("`", "Invalid character '`' in base36 string"),
            ("{", "Invalid character '{' in base36 string"),
            ("!", "Invalid character '!' in base36 string"),
            ("a!", "Invalid character in base36 string"),
            ("!a", "Invalid character in base36 string"),
            ("a@b", "Invalid character in base36 string"),
        ];

        for (input, expected_error) in invalid_cases {
            match base36_to_u64(input) {
                Err(msg) => {
                    if expected_error.contains("Invalid character '") {
                        assert!(msg.starts_with("Invalid character"));
                    } else {
                        assert_eq!(msg, expected_error);
                    }
                }
                Ok(_) => panic!("Should have failed for input: {input}"),
            }
        }
    }

    #[test]
    fn test_base36_to_u64_odd_length_strings() {
        // Test strings with odd lengths to ensure the remaining digit handling works
        assert_eq!(base36_to_u64("1").unwrap(), 1);
        assert_eq!(base36_to_u64("123").unwrap(), 36 * 36 + 2 * 36 + 3);
        assert_eq!(
            base36_to_u64("12345").unwrap(),
            36 * 36 * 36 * 36 + 2 * 36 * 36 * 36 + 3 * 36 * 36 + 4 * 36 + 5
        );
    }

    #[test]
    fn test_base36_to_u64_unchecked_specific_lengths() {
        // Test all the specific length cases in base36_to_u64_unchecked
        // 1 character (line 139)
        assert_eq!(base36_to_u64_unchecked("5"), 5);
        assert_eq!(base36_to_u64_unchecked("z"), 35);

        // 2 characters (lines 140-143)
        assert_eq!(base36_to_u64_unchecked("10"), 36);
        assert_eq!(base36_to_u64_unchecked("zz"), 1295);

        // 3 characters (lines 145-149)
        assert_eq!(base36_to_u64_unchecked("100"), 1296);
        assert_eq!(base36_to_u64_unchecked("zzz"), 46655);

        // 4+ characters (lines 151-156)
        assert_eq!(base36_to_u64_unchecked("1000"), 46656);
        assert_eq!(
            base36_to_u64_unchecked("abcd"),
            10 * 36 * 36 * 36 + 11 * 36 * 36 + 12 * 36 + 13
        );
    }

    #[test]
    fn test_performance_comparison() {
        // Test that checked and unchecked versions produce the same results
        let test_values = vec![0, 1, 35, 36, 1000, 46656, 1000000];

        for value in test_values {
            let base36_str = u64_to_base36(value);
            assert_eq!(u64_to_base36_unchecked(value), base36_str);
            assert_eq!(
                base36_to_u64(&base36_str).unwrap(),
                base36_to_u64_unchecked(&base36_str)
            );
        }
    }

    #[test]
    fn test_edge_case_error_messages() {
        // Test specific error message formatting
        match base36_to_u64("@") {
            Err(msg) => assert!(msg.contains("Invalid character '@' in base36 string")),
            Ok(_) => panic!("Should have failed"),
        }

        // Test empty string error message
        match base36_to_u64("") {
            Err(msg) => assert_eq!(msg, "Empty string"),
            Ok(_) => panic!("Should have failed"),
        }
    }

    #[test]
    fn test_large_string_handling() {
        // Test handling of strings that would definitely overflow
        let very_large_string = "z".repeat(20);
        match base36_to_u64(&very_large_string) {
            Err(msg) => assert_eq!(msg, "Overflow while parsing base36 string"),
            Ok(_) => panic!("Should have overflowed"),
        }
    }

    #[test]
    fn test_buffer_usage_in_general_case() {
        // Test values that use the general case buffer (> 46655)
        let large_values = vec![100000, 1000000, 10000000, 100000000, 1000000000];

        for value in large_values {
            let base36_str = u64_to_base36(value);
            let decoded = base36_to_u64(&base36_str).unwrap();
            assert_eq!(decoded, value);
            // Verify the string is reasonable length (should be <= 13 for u64::MAX)
            assert!(base36_str.len() <= 13);
        }
    }

    #[test]
    fn test_u128_to_base36() {
        assert_eq!(u128_to_base36(0), "0");
        assert_eq!(u128_to_base36(1), "1");
        assert_eq!(u128_to_base36(35), "z");
        assert_eq!(u128_to_base36(36), "10");
        assert_eq!(u128_to_base36(u64::MAX as u128), "3w5e11264sgsf");
        // Test value larger than u64::MAX
        let large_value: u128 = (u64::MAX as u128) * 2;
        let encoded = u128_to_base36(large_value);
        let decoded = base36_to_u128(&encoded).unwrap();
        assert_eq!(decoded, large_value);
    }

    #[test]
    fn test_base36_to_u128() {
        assert_eq!(base36_to_u128("0").unwrap(), 0);
        assert_eq!(base36_to_u128("1").unwrap(), 1);
        assert_eq!(base36_to_u128("z").unwrap(), 35);
        assert_eq!(base36_to_u128("10").unwrap(), 36);
        assert_eq!(base36_to_u128("3w5e11264sgsf").unwrap(), u64::MAX as u128);
    }

    #[test]
    fn test_u128_roundtrip() {
        let test_values: Vec = vec![
            0,
            1,
            35,
            36,
            u64::MAX as u128,
            u64::MAX as u128 + 1,
            u128::MAX / 2,
            u128::MAX - 1,
            u128::MAX,
        ];

        for value in test_values {
            let encoded = u128_to_base36(value);
            let decoded = base36_to_u128(&encoded).unwrap();
            assert_eq!(decoded, value, "Roundtrip failed for {value}");
        }
    }

    #[test]
    fn test_bytes_to_base36() {
        // Empty and zero cases
        assert_eq!(bytes_to_base36(&[]), "0");
        assert_eq!(bytes_to_base36(&[0]), "0");
        assert_eq!(bytes_to_base36(&[0, 0, 0]), "0");

        // Single byte values
        assert_eq!(bytes_to_base36(&[1]), "1");
        assert_eq!(bytes_to_base36(&[35]), "z");
        assert_eq!(bytes_to_base36(&[36]), "10");
        assert_eq!(bytes_to_base36(&[255]), "73"); // 255 in base36

        // Multi-byte values
        assert_eq!(bytes_to_base36(&[1, 0]), "74"); // 256 in base36
        assert_eq!(bytes_to_base36(&[0, 1, 0]), "74"); // Leading zeros ignored

        // Known value: 0xDEADBEEF
        assert_eq!(bytes_to_base36(&[0xDE, 0xAD, 0xBE, 0xEF]), "1ps9wxb");
    }

    #[test]
    fn test_base36_to_bytes() {
        assert_eq!(base36_to_bytes("0").unwrap(), vec![0]);
        assert_eq!(base36_to_bytes("1").unwrap(), vec![1]);
        assert_eq!(base36_to_bytes("z").unwrap(), vec![35]);
        assert_eq!(base36_to_bytes("10").unwrap(), vec![36]);
        assert_eq!(base36_to_bytes("73").unwrap(), vec![255]);
        assert_eq!(base36_to_bytes("74").unwrap(), vec![1, 0]); // 256

        // Known value: 0xDEADBEEF
        assert_eq!(
            base36_to_bytes("1ps9wxb").unwrap(),
            vec![0xDE, 0xAD, 0xBE, 0xEF]
        );
    }

    #[test]
    fn test_bytes_roundtrip() {
        let test_cases: Vec> = vec![
            vec![0],
            vec![1],
            vec![255],
            vec![1, 0],
            vec![255, 255],
            vec![0xDE, 0xAD, 0xBE, 0xEF],
            vec![1, 2, 3, 4, 5, 6, 7, 8],
            vec![255; 16], // 16 bytes of 0xFF
        ];

        for bytes in test_cases {
            let encoded = bytes_to_base36(&bytes);
            let decoded = base36_to_bytes(&encoded).unwrap();
            // Skip leading zeros in original for comparison
            let start = bytes.iter().position(|&b| b != 0).unwrap_or(bytes.len() - 1);
            let expected = if start == bytes.len() {
                vec![0]
            } else {
                bytes[start..].to_vec()
            };
            assert_eq!(decoded, expected, "Roundtrip failed for {bytes:?}");
        }
    }

    #[test]
    fn test_base36_to_bytes_fixed() {
        // Test fixed-size decoding with padding
        let result: [u8; 4] = base36_to_bytes_fixed("1").unwrap();
        assert_eq!(result, [0, 0, 0, 1]);

        let result: [u8; 4] = base36_to_bytes_fixed("1ps9wxb").unwrap();
        assert_eq!(result, [0xDE, 0xAD, 0xBE, 0xEF]);

        // Test error when value is too large
        let result: Result<[u8; 2], String> = base36_to_bytes_fixed("1ps9wxb");
        assert!(result.is_err());
    }

    #[test]
    fn test_uuid_v4_encode_decode() {
        // UUID v4 example: 550e8400-e29b-41d4-a716-446655440000
        // As bytes (big-endian): [0x55, 0x0e, 0x84, 0x00, 0xe2, 0x9b, 0x41, 0xd4,
        //                         0xa7, 0x16, 0x44, 0x66, 0x55, 0x44, 0x00, 0x00]
        let uuid_bytes: [u8; 16] = [
            0x55, 0x0e, 0x84, 0x00, 0xe2, 0x9b, 0x41, 0xd4, 0xa7, 0x16, 0x44, 0x66, 0x55, 0x44,
            0x00, 0x00,
        ];

        // Encode to base36
        let encoded = bytes_to_base36(&uuid_bytes);

        // Decode back to bytes
        let decoded: [u8; 16] = base36_to_bytes_fixed(&encoded).unwrap();

        assert_eq!(decoded, uuid_bytes);

        // Also test via u128 path
        let uuid_as_u128 = u128::from_be_bytes(uuid_bytes);
        let encoded_u128 = u128_to_base36(uuid_as_u128);
        let decoded_u128 = base36_to_u128(&encoded_u128).unwrap();

        assert_eq!(decoded_u128, uuid_as_u128);
        assert_eq!(decoded_u128.to_be_bytes(), uuid_bytes);

        // Verify both methods produce the same encoding
        assert_eq!(encoded, encoded_u128);
    }

    #[test]
    fn test_uuid_v4_random_samples() {
        // Test several UUID v4 patterns
        // UUID v4 has version 4 in bits 12-15 of time_hi_and_version (byte 6)
        // and variant bits 10xx in byte 8
        let uuid_samples: Vec<[u8; 16]> = vec![
            // Standard UUID v4 format
            [
                0x6b, 0xa7, 0xb8, 0x10, 0x9d, 0xad, 0x41, 0xd2, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4,
                0x30, 0xc8,
            ],
            // All zeros except version/variant bits
            [
                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
                0x00, 0x00,
            ],
            // Near max values
            [
                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x4f, 0xff, 0xbf, 0xff, 0xff, 0xff, 0xff, 0xff,
                0xff, 0xff,
            ],
        ];

        for uuid_bytes in uuid_samples {
            // Test bytes_to_base36 / base36_to_bytes_fixed roundtrip
            let encoded = bytes_to_base36(&uuid_bytes);
            let decoded: [u8; 16] = base36_to_bytes_fixed(&encoded).unwrap();
            assert_eq!(decoded, uuid_bytes);

            // Test u128_to_base36 / base36_to_u128 roundtrip
            let uuid_u128 = u128::from_be_bytes(uuid_bytes);
            let encoded_u128 = u128_to_base36(uuid_u128);
            let decoded_u128 = base36_to_u128(&encoded_u128).unwrap();
            assert_eq!(decoded_u128.to_be_bytes(), uuid_bytes);

            // Verify encoding is compact (UUID should be ~25 chars max in base36)
            assert!(encoded.len() <= 25);
        }
    }

    #[test]
    fn test_uuid_v4_max_value() {
        // Maximum possible UUID value (all 0xFF)
        let max_uuid: [u8; 16] = [0xff; 16];

        let encoded = bytes_to_base36(&max_uuid);
        let decoded: [u8; 16] = base36_to_bytes_fixed(&encoded).unwrap();
        assert_eq!(decoded, max_uuid);

        // Verify via u128
        let max_u128 = u128::MAX;
        assert_eq!(u128::from_be_bytes(max_uuid), max_u128);
        let encoded_u128 = u128_to_base36(max_u128);
        assert_eq!(encoded, encoded_u128);
    }

    #[test]
    fn test_uuid_v4_min_nonzero() {
        // Minimum non-zero UUID (just 1 in the last byte)
        let min_uuid: [u8; 16] = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1];

        let encoded = bytes_to_base36(&min_uuid);
        assert_eq!(encoded, "1");

        let decoded: [u8; 16] = base36_to_bytes_fixed(&encoded).unwrap();
        assert_eq!(decoded, min_uuid);
    }
}

Parse Wikipedia dump

"""
This module processes Wikipedia dump files by extracting individual articles and parsing them into a structured format, making them easier to work with for downstream tasks like data analysis, machine learning, or further processing.

### Overview:
- The script primarily handles Wikipedia dump files (large archives) and facilitates the extraction of individual Wikipedia articles from these dumps.
- After extraction, the articles can be parsed and converted into JSON files, which include metadata and structured content such as sections, links, and categories.

### Commands:
1. **`extract`**: Extracts articles from a Wikipedia dump file.
    - **Usage**: 
      ```
      python script_name.py extract   [OPTIONS]
      ```
    - **Arguments**:
      - `dump_file`: Path to the Wikipedia dump file.
      - `output_dir`: Directory where the extracted articles should be saved.
    - **Options**:
      - `--force`: Overwrite existing files if they already exist.
      - `--max-pages`: Limit the number of pages to extract.
    - **Description**: 
      This command reads the Wikipedia dump file and extracts each article into a separate file. Each file contains a JSON metadata header and the article's mediawiki markup. Files are organized into buckets to avoid overloading directories with too many files.

2. **`parse`**: Parses the extracted articles into a structured JSON format.
    - **Usage**: 
      ```
      python script_name.py parse   [OPTIONS]
      ```
    - **Arguments**:
      - `input_dir`: Directory containing the extracted articles.
      - `output_dir`: Directory where the parsed JSON files should be saved.
    - **Options**:
      - `--max-articles`: Limit the number of articles to process.
      - `--processes`: Number of parallel processes to use.
      - `--force`: Overwrite existing files if they already exist.
    - **Description**: 
      This command processes the extracted articles, converting them into JSON files that are more structured and easier to work with. The JSON files include metadata, section information, and links, making it straightforward to use the data in downstream tasks.

### Why:
This module is designed to facilitate the processing of large Wikipedia dump files. By extracting and parsing articles into a structured format, it enables easier and more efficient analysis, search, and manipulation of Wikipedia content. This is particularly useful for research, building knowledge graphs, or any application that requires access to structured data from Wikipedia.
"""

import mwxml # To extract the pages
import os
from tqdm import tqdm
from pathlib import Path
from slugify import slugify # To normalize to filenames
from hashlib import md5
import json
import click
from pathlib import Path
import mwcomposerfromhell # mediawiki markup to html
import mwparserfromhell # Parse the mediawiki markup 
import re
from multiprocessing import Pool
from rich import print

@click.group()
def cli():
    """Command-line interface for processing Wikipedia dump files."""
    pass

def save_page(page, output_dir: Path, force=False):
    """
    Saves an extracted Wikipedia page to a file with metadata.

    Parameters
    ----------
    page : mwxml.Page
        A page object extracted from the Wikipedia dump using mwparserfromhell.
    output_dir : Path
        The directory where the page will be stored.
    force : bool, optional
        If True, overwrite existing files. Default is False.

    Notes
    -----
    The file is saved in a subdirectory based on a hash of the title to avoid 
    creating too many files in a single directory. The first line of the file 
    contains metadata in JSON format, and the remainder is the mediawiki markup.
    """
    title = slugify(page.title)
    bucket = md5(title.encode('utf-8')).hexdigest()[:3]
    file_name = f"{title}.wiki"
    file_path = Path(output_dir) / bucket / file_name

    if file_path.exists() and not force:
        return

    file_path.parent.mkdir(parents=True, exist_ok=True)

    revision = None
    for rev in page:
        revision = rev
        break  # Take the first revision

    if revision is None:
        print(f"Skipping page '{title}' because no revisions are found.")
        return

    metadata_str = json.dumps({
        'title': page.title,
        'bucket': bucket,
        'file_name': file_name,
        'info': page.to_json()
    })

    with open(file_path, 'w', encoding='utf-8') as f:
        f.write(metadata_str + '\n' + revision.text)

@cli.command()
@click.argument('dump_file', type=click.Path(exists=True, path_type=Path, dir_okay=False))
@click.argument('output_dir', type=click.Path(exists=True, path_type=Path, dir_okay=True, file_okay=False))
@click.option('--force', is_flag=True, help='Overwrite existing files')
@click.option('--max-pages', type=int, help='Maximum number of pages to extract')
def extract(dump_file: Path, output_dir: Path, force: bool = False, max_pages: int = None):
    """
    Extracts Wikipedia articles from a dump file and saves them as individual files.

    Parameters
    ----------
    dump_file : Path
        Path to the Wikipedia dump file.
    output_dir : Path
        Directory where the extracted files should be saved.
    force : bool, optional
        If True, overwrite existing files. Default is False.
    max_pages : int, optional
        Maximum number of pages to extract. If not set, all pages are extracted.

    Notes
    -----
    Each extracted file contains a JSON metadata header followed by the 
    article's mediawiki markup. The process may take significant time depending 
    on the size of the dump and the number of pages.
    """
    if not os.path.exists(output_dir):
        os.makedirs(output_dir)

    with open(dump_file, 'rb') as f:
        dump = mwxml.Dump.from_file(f)
        for idx, page in enumerate(tqdm(dump, total=5_691_832 if max_pages is None else max_pages)):
            if max_pages is not None and idx >= max_pages:
                break
            try:
                save_page(page, output_dir, force)
            except Exception as e:
                print(f"Error processing page '{page.title}': {e}")

def list_paths_by_suffix(directory='.', suffix='.wiki'):
    """
    Generator that finds all file paths with the given suffix in a directory.

    Parameters
    ----------
    directory : str, optional
        Directory to search in. Default is the current directory.
    suffix : str, optional
        File suffix to search for. Default is '.wiki'.

    Yields
    ------
    Path
        Paths to files with the specified suffix.
    """
    path = Path(directory)
    for file in path.rglob(f'*{suffix}'):
        yield file

namespaces = {
    0: {'name': '(Main/Article)', 'type': 'subject'},
    1: {'name': 'Talk', 'type': 'talk'},
    2: {'name': 'User', 'type': 'subject'},
    3: {'name': 'User talk', 'type': 'talk'},
    4: {'name': 'Wikipedia', 'type': 'subject'},
    5: {'name': 'Wikipedia talk', 'type': 'talk'},
    6: {'name': 'File', 'type': 'subject'},
    7: {'name': 'File talk', 'type': 'talk'},
    8: {'name': 'MediaWiki', 'type': 'subject'},
    9: {'name': 'MediaWiki talk', 'type': 'talk'},
    10: {'name': 'Template', 'type': 'subject'},
    11: {'name': 'Template talk', 'type': 'talk'},
    12: {'name': 'Help', 'type': 'subject'},
    13: {'name': 'Help talk', 'type': 'talk'},
    14: {'name': 'Category', 'type': 'subject'},
    15: {'name': 'Category talk', 'type': 'talk'},
    100: {'name': 'Portal', 'type': 'subject'},
    101: {'name': 'Portal talk', 'type': 'talk'},
    118: {'name': 'Draft', 'type': 'subject'},
    119: {'name': 'Draft talk', 'type': 'talk'},
    710: {'name': 'TimedText', 'type': 'subject'},
    711: {'name': 'TimedText talk', 'type': 'talk'},
    828: {'name': 'Module', 'type': 'subject'},
    829: {'name': 'Module talk', 'type': 'talk'},
}

def parse_extracted_article(info: dict, text: str) -> dict:
    """
    Parses a Wikipedia article's text and metadata into a structured format.

    Parameters
    ----------
    info : dict
        Metadata about the article extracted from the dump.
    text : str
        The raw mediawiki markup text of the article.

    Returns
    -------
    dict
        A structured representation of the article, including sections, links, 
        and categories.

    Notes
    -----
    This function identifies redirects, parses sections, and extracts links 
    and categories from the article. The output can be used for further 
    processing or analysis.
    """
    info['namespace'] = namespaces.get(info.get('info', {}).get('namespace'), {'name': 'Unknown', 'type': 'unknown'})

    # Check if the article is a redirect
    t = text[:100].lower().strip()
    if t.startswith('#redirect') or t.startswith('#weiterleitung'):
        # Fast parsing using regex for redirects
        pattern = re.compile('\[\[(.*)\]\]')
        matches = pattern.findall(text)
        if matches:
            return {
                'type': 'redirect',
                'target': matches[0]
            }

    # Parse the mediawiki markup
    wikicode = mwparserfromhell.parse(text)

    # Extract sections
    sections = wikicode.get_sections(include_lead=True, levels=[1, 2, 3, 4, 5, 6])

    res = {
        'info': info,
        'type': info['namespace']['name'],
        'title': info['title'],
        'sections': [],
        'categories': [],
        'type': 'article'
    }

    seen_links = set()

    for idx, section in enumerate(sections):
        section_info = {
            'idx': idx,
        }

        headings = section.filter_headings()
        if headings:
            heading = headings[0]
            section_info['title'] = str(heading.title)
            section_info['level'] = str(heading.level)
        elif idx == 0:
            try:
                section_info['title'] = str(section.nodes[0].contents)
                res['title'] = section_info['title']
            except:
                section_info['title'] = 'Introduction'
            section_info['level'] = 1

        for link in section.filter_wikilinks():
            seen_links.add((str(link.title), str(link.text) if link.text else None))

        section_links = [{
            'target': str(link.title),
            'text': str(link.text) if link.text else None,
        } for link in section.filter_wikilinks()]

        html = ''
        try:
            html = str(mwcomposerfromhell.compose(section))
        except:
            pass
        res['sections'].append({
            'section': section_info,
            "html": html,
            "wiki": str(section),
            "links": section_links
        })

    links = []
    for link in wikicode.filter_wikilinks():
        links.append((str(link.title), str(link.text) if link.text else None))

    article_links = set(links) - seen_links

    res['links'] = links
    res['non_section_links'] = sorted(article_links)
    res['categories'] = []

    for link in links:
        link, _ = link

        if ':' not in link:
            continue

        link_type, target = link.split(':', 1)

        if link_type.lower() == 'kategorie':
            res['categories'].append(target)

    return res

def parse_extracted_article_path(article_path: Path, articles_dir: Path, output_dir: Path, force=False):
    """
    Parses and saves a structured JSON from an extracted article file.

    Parameters
    ----------
    article_path : Path
        Path to the extracted article file.
    articles_dir : Path
        Directory containing the extracted articles.
    output_dir : Path
        Directory where the parsed JSON files will be saved.
    force : bool, optional
        If True, overwrite existing files. Default is False.

    Notes
    -----
    The main logic is handled by `parse_extracted_article`, while this function 
    manages file input/output.
    """
    text = article_path.read_text()
    target = output_dir / article_path.relative_to(articles_dir)
    if target.exists() and not force:
        return

    info, text = text.split('\n', 1)
    info = json.loads(info)

    res = parse_extracted_article(info, text)
    target.parent.mkdir(parents=True, exist_ok=True)
    with open(target.with_suffix('.json'), 'w') as f:
        json.dump(res, f, indent=2)

def __parse_extracted_article_path_wrapper(args):
    """
    Wrapper for multiprocessing to handle argument unpacking.

    Parameters
    ----------
    args : tuple
        Arguments for `parse_extracted_article_path`.

    Notes
    -----
    This wrapper is necessary for multiprocessing pool map, as it only handles 
    one argument. Lambdas can't be used with multiprocessing because they are 
    not picklable.
    """
    try:
        article_path, articles_dir, output_dir, force = args
        return parse_extracted_article_path(article_path, articles_dir, output_dir, force)
    except Exception as e:
        print(e)

def augment_iterator(it, *args, max_articles=None):
    """
    Augments an iterator with additional arguments for parallel processing.

    Parameters
    ----------
    it : iterable
        The original iterator.
    *args : any
        Additional arguments to append to each item.
    max_articles : int, optional
        Maximum number of items to yield. If None, yield all items.

    Yields
    ------
    tuple
        A tuple where the first item is from the original iterator, followed by 
        the additional arguments.
    """
    for idx, e in enumerate(it):
        if max_articles and idx >= max_articles:
            break
        yield (e,) + args

def _process_articles_in_parallel(articles_dir: Path, output_dir: Path, max_articles=None, force: bool = False, processes=3):
    """
    Processes articles in parallel, parsing them into structured JSON files.

    Parameters
    ----------
    articles_dir : Path
        Directory containing the extracted article files.
    output_dir : Path
        Directory where the parsed JSON files will be saved.
    max_articles : int, optional
        Maximum number of articles to process. If None, process all articles.
    force : bool, optional
        If True, overwrite existing files. Default is False.
    processes : int, optional
        Number of parallel processes to use. Default is 3.

    Notes
    -----
    This function uses a multiprocessing pool to parse articles concurrently, 
    improving efficiency on large datasets.
    """
    article_paths = list_paths_by_suffix(articles_dir, '.wiki')
    article_paths = augment_iterator(article_paths, articles_dir, output_dir, force, max_articles=max_articles)

    total = max_articles if max_articles is not None else 5273102
    with Pool(processes=processes) as pool:
        list(tqdm(pool.imap_unordered(__parse_extracted_article_path_wrapper, article_paths), total=total))

@cli.command()
@click.argument('input_dir', type=click.Path(exists=True, path_type=Path, dir_okay=True, file_okay=False))
@click.argument('output_dir', type=click.Path(exists=True, path_type=Path, dir_okay=True, file_okay=False))
@click.option('--max-articles', type=int, help='Maximum number of articles to process')
@click.option('--processes', type=int, default=3, help='Number of processes to use')
@click.option('--force', is_flag=True, help='Overwrite existing files')
def parse(input_dir: Path, output_dir: Path, max_articles: int = None, processes: int = 3, force: bool = False):
    """
    Parses extracted Wikipedia articles into structured JSON files.

    Parameters
    ----------
    input_dir : Path
        Directory containing the extracted articles.
    output_dir : Path
        Directory where the parsed JSON files should be saved.
    max_articles : int, optional
        Maximum number of articles to process. If None, process all articles.
    processes : int, optional
        Number of parallel processes to use. Default is 3.
    force : bool, optional
        If True, overwrite existing files. Default is False.

    Notes
    -----
    The resulting JSON files contain metadata and structured content like 
    sections, links, and categories, making them easier to work with in 
    downstream tasks.
    """
    if processes < 1:
        import multiprocessing as mp
        processes = mp.cpu_count()

    articles_dir = Path(input_dir)
    output_dir = Path(output_dir)
    output_dir.mkdir(exist_ok=True, parents=True)
    _process_articles_in_parallel(articles_dir, output_dir, max_articles, force, processes)

if __name__ == '__main__':
    cli()

Kollektivgeist

Der Kollektivgeist: Ihr intelligentes Unternehmensgedächtnis

Wissen aus den Köpfen der Mitarbeiter extrahieren - Die richtige Idee zur richtigen Zeit verfügbar machen

Demo anfordern

Die verborgenen Schätze in Ihrem Unternehmen

In jedem Unternehmen schlummern ungeahnte Wissensschätze:

• In den Köpfen Ihrer Mitarbeiter - jeder ein eigenes Datensilo
• In unzähligen Dokumenten, verteilt über verschiedene Systeme
• In jahrelanger Erfahrung, die oft nicht dokumentiert ist

Dieses Wissen ist Ihr Kapital. Doch wie machen Sie es zugänglich und wandeln es in echten Mehrwert um?

Unsere Lösung: Der Kollektivgeist mit digitalen Zwillingen

Der Kollektivgeist ist mehr als nur eine Datenbank - er ist das lebendige Gedächtnis Ihres Unternehmens.

Digitale Zwillinge: Ihr Wissen, digital abgebildet

Für jeden Mitarbeiter erstellen wir einen digitalen Zwilling - eine intelligente, digitale Repräsentation seines Wissens und seiner Erfahrungen. Diese Zwillinge:

• Erfassen automatisch das Wissen aus dem Arbeitsalltag
• Lernen kontinuierlich aus jeder Interaktion
• Bleiben dem Unternehmen erhalten, selbst wenn Mitarbeiter gehen

Der Kollektivgeist: Wissen vernetzen und nutzbar machen

Der Kollektivgeist verbindet die digitalen Zwillinge und macht sie zu einem mächtigen Netzwerk:

• Verknüpft Wissen abteilungsübergreifend
• Identifiziert automatisch Wissenslücken und kritische Wissensbereiche
• Macht bisher ungenutztes Wissen effizient zugänglich

Wie der Kollektivgeist mit Ihren Mitarbeitern interagiert

Intelligente Wissenserfassung

Der Kollektivgeist arbeitet im Hintergrund und erfasst Wissen, ohne den Arbeitsfluss zu stören:

• Analysiert Dokumente, E-Mails und Chats
• Lernt aus Problemlösungen und Entscheidungsprozessen
• Erkennt Muster und Zusammenhänge über verschiedene Projekte hinweg

Interaktive Wissensabfrage

Mitarbeiter können jederzeit auf das gesammelte Wissen zugreifen:

• Intuitive Suchfunktion für schnelle Antworten
• Chatbot für komplexe Fragestellungen
• Automatische Vorschläge relevanter Informationen basierend auf aktuellen Aufgaben

Kontinuierliche Wissenserweiterung

Der Kollektivgeist wächst mit Ihrem Unternehmen:

• Erkennt Wissenslücken und stellt gezielte Fragen an Experten
• Integriert neue Erkenntnisse nahtlos in bestehende Wissensstrukturen
• Passt sich dynamisch an veränderte Unternehmensstrukturen und -prozesse an

Funktionsweise von Kollektivgeist

Dokumentenverarbeitung

Wir scannen und analysieren alle Dokumente innerhalb des Unternehmens. Dabei verknüpfen wir das enthaltene Wissen in einem umfassenden Wissensgrafen und identifizieren Wissenslücken im geschriebenen Material.

Wissenszuordnung

Während des Einlesens speichern wir, wer welches Dokument verfasst hat. Um die erkannten Wissenslücken zu schließen, stellen wir gezielte Fragen an die entsprechenden Mitarbeiter. Diese gezielte Wissensabfrage ermöglicht es, Lücken effizient zu füllen.

Nahtlose Integration

Dieser Prozess läuft automatisch im Hintergrund, während die Mitarbeiter das System nutzen. Durch die umfassende Dokumentenanalyse bieten wir eine leistungsstarke, unternehmensinterne Suchmaschine, die ähnlich wie Google funktioniert. Mitarbeiter können schnell und einfach relevante Dokumente finden und abrufen.

KI-gestützte Unterstützung

Unsere künstliche Intelligenz greift auf alle erfassten Dokumente und das gesammelte Wissen zu. Sie steht den Mitarbeitern als intelligenter Chatbot zur Verfügung, der Fragen beantwortet und Unterstützung bietet.

Vorteile für Ihr Unternehmen

Wissen zugänglich machen

• Reduzieren Sie Einarbeitungszeiten und steigern Sie die Produktivität
• Vermeiden Sie kostspielige Fehler durch fundierte Entscheidungen
• Beschleunigen Sie Innovationsprozesse durch effiziente Wissensnutzung

Nie wieder Wissen verlieren

• Sichern Sie das Wissen langjähriger Mitarbeiter für die Zukunft
• Brechen Sie Wissenssilos auf und fördern Sie abteilungsübergreifenden Austausch
• Identifizieren und schließen Sie kritische Wissenslücken proaktiv

Wissen in den Köpfen der Mitarbeiter gewinnbringend zugänglich machen

• Finden Sie relevante Informationen in Sekundenschnelle
• Nutzen Sie das kollektive Wissen für bessere Problemlösungen
• Steigern Sie die Anpassungsfähigkeit Ihres Unternehmens durch schnellen Wissenszugriff

Praxisbeispiel: Wissenstransfer in der Produktion

Ein Maschinenbauunternehmen steht vor der Herausforderung, das Expertenwissen eines langjährigen Mitarbeiters zu sichern:

1. Der digitale Zwilling des Experten hat über Jahre hinweg sein Wissen über Maschinenoptimierung erfasst.
2. Der Kollektivgeist erkennt eine bevorstehende Wissenslücke durch den nahenden Ruhestand des Experten.
3. Gezielte Fragen an den Experten füllen letzte Lücken im digitalen Zwilling.
4. Neue Mitarbeiter können nun auf das gesamte Erfahrungswissen zugreifen.
5. Der Kollektivgeist verknüpft dieses Wissen mit Erkenntnissen aus anderen Abteilungen, was zu Prozessverbesserungen führt.

Ergebnis: Reibungsloser Wissenstransfer, erhaltene Produktionseffizienz und sogar Innovationen durch neue Wissensverknüpfungen.

Integration des Kollektivgeists in Ihr Unternehmen

Wir begleiten Sie Schritt für Schritt bei der Implementierung:

1. Analyse: Wir identifizieren Ihre wertvollsten Wissensressourcen und -prozesse.
2. Maßgeschneiderte Anpassung: Der Kollektivgeist wird auf Ihre spezifischen Anforderungen zugeschnitten.
3. Schrittweise Einführung: Beginnend mit Schlüsselabteilungen, erweitern wir das System kontinuierlich.
4. Schulung und Unterstützung: Wir sorgen dafür, dass Ihre Mitarbeiter den Kollektivgeist optimal nutzen können.
5. Kontinuierliche Optimierung: Regelmäßige Analysen und Anpassungen garantieren maximalen Nutzen.

Werden Sie Pilotkunde

Gestalten Sie die Zukunft des Wissensmanagements mit:

• Exklusiver Zugang zur neuesten Version des Kollektivgeists
• Maßgeschneiderte Anpassung an Ihre Unternehmensstruktur
• Intensiver Support während der gesamten Implementierungsphase
• Möglichkeit, die Entwicklung aktiv mitzugestalten
• Wettbewerbsvorsprung durch frühzeitige Nutzung dieser innovativen Technologie

Erleben Sie den Kollektivgeist in Aktion

Kontaktieren Sie uns für eine exklusive Demo und erfahren Sie, wie der Kollektivgeist Ihr Unternehmenswissen revolutionieren kann.

Java Template Engine Pebble is fast

2 Million renderings took 0.875s

import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;

import io.pebbletemplates.pebble.PebbleEngine;
import io.pebbletemplates.pebble.loader.ClasspathLoader;
import io.pebbletemplates.pebble.template.PebbleTemplate;

public class HtmlExporter {


    public String export() {
        PebbleEngine engine = new PebbleEngine.Builder()
                .loader(new ClasspathLoader())
                .build();
        PebbleTemplate compiledTemplate = engine.getTemplate("templates/home.html");

        Map context = new HashMap<>();
        context.put("websiteTitle", "Title :-)");
        context.put("content", "Mitchell");

        Map name = new HashMap<>();
        name.put("first", "Tom");
        name.put("last", "Stadelmann");

        context.put("name", name);

        Writer writer = new StringWriter();
        try {
            compiledTemplate.evaluate(writer, context);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        run(compiledTemplate);

        return writer.toString();
    }

    public void run(PebbleTemplate compiledTemplate) {
        var start = System.currentTimeMillis();

        for (int i = 0; i < 2000000; i++) {
            Map context = new HashMap<>();
            context.put("websiteTitle", "Title :-)");
            context.put("content", "Mitchell");

            Map name = new HashMap<>();
            name.put("first", "Tom");
            name.put("last", "Me");

            context.put("name", name);

            Writer writer = new StringWriter();
            try {
                compiledTemplate.evaluate(writer, context);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        var end = System.currentTimeMillis();
        System.out.println("Time: " + (end - start));
    }
}

<html>

<head>
    <title>{{ websiteTitle }}</title>
</head>

<body>
    {{ content }}

    {{ name.first }}
    {{ name.last }}
</body>

</html>

Java Mustache Example

{{#todos}}
{{#capitalize}}{{title}}{{/capitalize}}

Created on {{createdOn}}
Lambda: {{#handleDone}}{{doneSince}}{{/handleDone}} :-)
Done: {{done}}

{{text}}
{{/todos}}

{{^todos}}
No todos found
{{/todos}}

import java.io.IOException;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import com.github.mustachejava.DefaultMustacheFactory;
import com.github.mustachejava.Mustache;
import com.github.mustachejava.MustacheFactory;
import java.time.Duration;
import java.util.function.Function;

public class HtmlExporter {

    public static class Todo {

        public Todo() {
            createdOn = new Date();
        }

        public Todo(String title, String text) {
            this.title = title;
            this.text = text;
            createdOn = new Date();
        }

        private String title;
        private String text;
        private boolean done = false;

        private Date createdOn;
        private Date completedOn;

        public void markAsDone() {
            done = true;
            completedOn = new Date();
        }

        public String getTitle() {
            return title;
        }

        public void setTitle(String title) {
            this.title = title;
        }

        public String getText() {
            return text;
        }

        public void setText(String text) {
            this.text = text;
        }

        public boolean getDone() {
            return done;
        }

        public Date getCreatedOn() {
            return createdOn;
        }

        public Date getCompletedOn() {
            return completedOn;
        }

        public void setDone(boolean done) {
            this.done = done;
        }

        public void setCompletedOn(Date completedOn) {
            this.completedOn = completedOn;
        }

        public long doneSince() {
            return done ? Duration
                    .between(createdOn.toInstant(), completedOn.toInstant())
                    .toMinutes() : 0;
        }

        public Function handleDone() {
            return (obj) -> done ? String.format("Done %s minutes ago", obj) : "Not done yet";
        }

    }

    public static class Context {
        List todos = new ArrayList<>();

        public Function capitalize() {
            return (obj) -> ("_" + obj + "_").toUpperCase();
        }

    }

    public String export() {

        MustacheFactory mf = new DefaultMustacheFactory();
        Mustache m = mf.compile("templates/todo.mustache");

        var context = new Context();
        for (int i = 0; i < 10; i++) {
            if (i % 2 == 0) {
                var todo = new Todo();
                todo.setTitle("Title " + i);
                todo.setText("Text " + i);
                todo.markAsDone();
                context.todos.add(todo);
                continue;
            } else {
                var todo = new Todo();
                todo.setTitle("Title " + i);
                todo.setText("Text " + i);
                context.todos.add(todo);
            }

        }

        StringWriter writer = new StringWriter();
        try {
            m.execute(writer, context).flush();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return writer.toString();

        // return templateEngine.process("notebook", context);
    }
}