uuinfo 0.4.1

A tool to debug unique identifiers (UUID, ULID, Snowflake, etc).
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use base58::{FromBase58, ToBase58};
use std::fmt::Write;

use crate::schema::{Args, IDInfo, IdFormat};
use crate::utils::{bits64, milliseconds_to_seconds_and_iso8601};

#[derive(Debug)]
pub struct SnowflakeAnnotation {
    pub version: Option<String>,
    custom_string: Option<String>,
    pub datetime: Option<String>,
    pub timestamp: Option<String>,
    node1: Option<String>,
    node2: Option<String>,
    sequence: Option<u128>,
    color_map: Option<String>,
}

impl Default for SnowflakeAnnotation {
    fn default() -> SnowflakeAnnotation {
        Self {
            version: Some("Unknown (use -f to specify version)".to_string()),
            custom_string: None,
            datetime: None,
            timestamp: None,
            node1: None,
            node2: None,
            sequence: None,
            color_map: Some("0000000000000000000000000000000000000000000000000000000000000000".to_string()),
        }
    }
}

pub fn annotate_twitter(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 1, 41);
    let worker_id = bits64(id_int, 42, 10);
    let sequence = bits64(id_int, 52, 12);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw, Some(1288834974657));
    SnowflakeAnnotation {
        version: Some("Twitter".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(format!("{} (Worker ID)", worker_id)),
        node2: None,
        sequence: Some(sequence as u128),
        color_map: Some("0333333333333333333333333333333333333333334444444444666666666666".to_string()),
    }
}

pub fn annotate_discord(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 0, 42);
    let worker_id = bits64(id_int, 42, 5);
    let process_id = bits64(id_int, 47, 5);
    let sequence = bits64(id_int, 52, 12);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw, Some(1420070400000));
    SnowflakeAnnotation {
        version: Some("Discord".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(format!("{} (Worker ID)", worker_id)),
        node2: Some(format!("{} (Process ID)", process_id)),
        sequence: Some(sequence as u128),
        color_map: Some("3333333333333333333333333333333333333333334444455555666666666666".to_string()),
    }
}

pub fn annotate_instagram(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 0, 41);
    let shard_id = bits64(id_int, 41, 13);
    let sequence = bits64(id_int, 54, 10);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw, Some(1314220021721));
    SnowflakeAnnotation {
        version: Some("Instagram".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(format!("{} (Shard ID)", shard_id)),
        node2: None,
        sequence: Some(sequence as u128),
        color_map: Some("3333333333333333333333333333333333333333344444444444446666666666".to_string()),
    }
}

pub fn annotate_sony(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 1, 39);
    let sequence = bits64(id_int, 40, 8);
    let machine_id = bits64(id_int, 48, 16);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw * 10, Some(1409529600000));
    SnowflakeAnnotation {
        version: Some("Sony".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(format!("{} (Machine ID)", machine_id)),
        node2: None,
        sequence: Some(sequence as u128),
        color_map: Some("0333333333333333333333333333333333333333666666664444444444444444".to_string()),
    }
}

pub fn annotate_spaceflake(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 1, 41);
    let node_id = bits64(id_int, 42, 5);
    let worker_id = bits64(id_int, 47, 5);
    let sequence = bits64(id_int, 52, 12);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw, Some(1420070400000));
    SnowflakeAnnotation {
        version: Some("Spaceflake".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(format!("{} (Node ID)", node_id)),
        node2: Some(format!("{} (Worker ID)", worker_id)),
        sequence: Some(sequence as u128),
        color_map: Some("0333333333333333333333333333333333333333334444455555666666666666".to_string()),
    }
}

pub fn annotate_linkedin(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 1, 41);
    let worker_id = bits64(id_int, 42, 10);
    let sequence = bits64(id_int, 52, 12);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw, None);
    SnowflakeAnnotation {
        version: Some("LinkedIn".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(format!("{} (Worker ID)", worker_id)),
        node2: None,
        sequence: Some(sequence as u128),
        color_map: Some("0333333333333333333333333333333333333333334444444444666666666666".to_string()),
    }
}

pub fn annotate_mastodon(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 0, 48);
    let sequence = bits64(id_int, 48, 16);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw, None);
    SnowflakeAnnotation {
        version: Some("Mastodon".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: None,
        node2: None,
        sequence: Some(sequence as u128),
        color_map: Some("3333333333333333333333333333333333333333333333336666666666666666".to_string()),
    }
}

pub fn annotate_frostflake(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 0, 32);
    let sequence = bits64(id_int, 32, 21);
    let generator = bits64(id_int, 53, 11);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw * 1000, None);
    SnowflakeAnnotation {
        version: Some("Frostflake".to_string()),
        custom_string: Some(id_int.to_be_bytes().to_base58()),
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(generator.to_string()),
        node2: None,
        sequence: Some(sequence as u128),
        color_map: Some("3333333333333333333333333333333366666666666666666666644444444444".to_string()),
    }
}

pub fn annotate_flakeid(args: &Args) -> SnowflakeAnnotation {
    let id_int: u64 = args.id.trim().parse().unwrap();
    let timestamp_raw = bits64(id_int, 0, 42);
    let datacenter_id = bits64(id_int, 42, 5);
    let worker_id = bits64(id_int, 47, 5);
    let sequence = bits64(id_int, 52, 12);
    let (timestamp, datetime) = milliseconds_to_seconds_and_iso8601(timestamp_raw, None);
    SnowflakeAnnotation {
        version: Some("Flake ID".to_string()),
        custom_string: None,
        datetime: Some(datetime),
        timestamp: Some(timestamp),
        node1: Some(format!("{} (Datacenter ID)", datacenter_id)),
        node2: Some(format!("{} (Worker ID)", worker_id)),
        sequence: Some(sequence as u128),
        color_map: Some("3333333333333333333333333333333333333333334444455555666666666666".to_string()),
    }
}

fn annotate_snowflake_variant(args: &Args) -> SnowflakeAnnotation {
    match args.force {
        Some(value) => {
            let annotation: SnowflakeAnnotation = match value {
                IdFormat::SfTwitter => annotate_twitter(args),
                IdFormat::SfMastodon => annotate_mastodon(args),
                IdFormat::SfDiscord => annotate_discord(args),
                IdFormat::SfInstagram => annotate_instagram(args),
                IdFormat::SfSony => annotate_sony(args),
                IdFormat::SfSpaceflake => annotate_spaceflake(args),
                IdFormat::SfLinkedin => annotate_linkedin(args),
                IdFormat::SfFrostflake => annotate_frostflake(args),
                IdFormat::SfFlakeid => annotate_flakeid(args),
                _ => SnowflakeAnnotation::default(),
            };
            annotation
        }
        None => SnowflakeAnnotation::default(),
    }
}

pub fn parse_snowflake(args: &Args) -> Option<IDInfo> {
    let mut parsed_args = args.clone();

    // If Frostflake is forced, the ID must be converted to numeric string:
    if args.force == Some(IdFormat::SfFrostflake) && args.id.trim().parse::<u64>().is_err() {
        match args.id.from_base58() {
            Ok(bytes) => {
                let mut buffer: Vec<u8> = vec![];
                if bytes.len() > 8 {
                    return None;
                }
                buffer.extend(std::iter::repeat(0).take(8 - bytes.len()));
                buffer.extend(bytes);
                let id_bytes: [u8; 8] = buffer.try_into().unwrap();
                parsed_args.id = u64::from_be_bytes(id_bytes).to_string()
            }
            Err(_) => return None,
        }
    }

    let id_int: u64 = match parsed_args.id.trim().parse::<u64>() {
        Ok(value) => value,
        Err(_) => return None,
    };

    let annotation = annotate_snowflake_variant(&parsed_args);

    Some(IDInfo {
        id_type: "Snowflake".to_string(),
        version: annotation.version,
        standard: annotation.custom_string.unwrap_or(id_int.to_string()),
        integer: Some(id_int as u128),
        parsed: Some("as integer".to_string()),
        size: 64,
        datetime: annotation.datetime,
        timestamp: annotation.timestamp,
        sequence: annotation.sequence,
        node1: annotation.node1,
        node2: annotation.node2,
        hex: Some(hex::encode(id_int.to_be_bytes())),
        bits: Some(id_int.to_be_bytes().iter().fold(String::new(), |mut output, c| {
            let _ = write!(output, "{c:08b}");
            output
        })),
        color_map: annotation.color_map,
        ..Default::default()
    })
}