#!/usr/bin/env python3
"""Write emoji.src: every fully-qualified emoji of Unicode's emoji-test.txt
but the skin-tone variants, each with its CLDR names and keywords in the
languages given, as result-first TAB-separated rows for mkemoji."""

import json
import sys
from pathlib import Path


def emoji(path):
    out = []
    for line in path.open(encoding="utf-8"):
        if "; fully-qualified" not in line:
            continue
        cps = [int(cp, 16) for cp in line.split(";")[0].split()]
        if any(0x1F3FB <= cp <= 0x1F3FF for cp in cps):
            continue
        out.append("".join(map(chr, cps)))
    return out


def annotations(path):
    """CLDR annotations.json, plain or derived: emoji -> names, keywords."""
    root = json.load(path.open(encoding="utf-8"))
    table = root[next(iter(root))]["annotations"]
    return {e: a.get("tts", []) + a.get("default", []) for e, a in table.items()}


def main():
    sys.stdout.reconfigure(encoding="utf-8")
    sys.stderr.reconfigure(encoding="utf-8")
    if len(sys.argv) < 3:
        print(f"usage: {sys.argv[0]} emoji-test.txt annotations.json...",
              file=sys.stderr)
        return 2
    tables = [annotations(Path(arg)) for arg in sys.argv[2:]]
    print("# Result first, then its CLDR names and keywords; see map/README.")
    for e in emoji(Path(sys.argv[1])):
        aliases = []
        for table in tables:
            for alias in table.get(e.replace("️", ""), table.get(e, [])):
                alias = alias.strip()
                if alias and alias not in aliases:
                    aliases.append(alias)
        if aliases:
            print(e + "\t" + "\t".join(aliases))
    return 0


if __name__ == "__main__":
    sys.exit(main())