#!/usr/bin/env python3
"""
sync_dialogue_translations.py - Sync a dialogue config's strings into a translation file.

Reads <dialogue_config.json>, collects every non-empty "speaker" and "text" string
from its nodes (and "text" from any node's "choices"), and appends any string not
already present as a "key" in <translations.json> as a new entry with an empty
"en" slot ready for a translator to fill in. New entries are always appended at
the end of the list so missing translations are easy to locate.

Usage:
    python sync_dialogue_translations.py <dialogue_config.json> <translations.json>
"""

import json
import sys

from translation_sync_common import sync_translations


def collect_strings(dialogue_config: dict) -> list[str]:
    seen = set()
    ordered = []

    def add(value):
        if value and value not in seen:
            seen.add(value)
            ordered.append(value)

    for dialogue in dialogue_config.get("dialogues", []):
        for node in dialogue.get("nodes", []):
            add(node.get("speaker", ""))
            add(node.get("text", ""))
            for choice in node.get("choices", []):
                add(choice.get("text", ""))

    return ordered


def sync(dialogue_path: str, translations_path: str) -> None:
    with open(dialogue_path, 'r', encoding='utf-8') as f:
        dialogue_config = json.load(f)

    sync_translations(collect_strings(dialogue_config), translations_path)


if __name__ == '__main__':
    if len(sys.argv) != 3:
        print(f"Usage: {sys.argv[0]} <dialogue_config.json> <translations.json>")
        sys.exit(1)

    sync(sys.argv[1], sys.argv[2])