#!/usr/bin/env python3

import sys
import json
import os

CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
PARENT_DIR = os.path.abspath(os.path.join(CURRENT_DIR, os.pardir))
if CURRENT_DIR not in sys.path:
    sys.path.append(CURRENT_DIR)
if PARENT_DIR not in sys.path:
    sys.path.append(PARENT_DIR)

from common import load_articles, write_result  # noqa: E402


def main():
    try:
        payload = json.load(sys.stdin)
    except Exception as exc:  # noqa: BLE001
        print(f"Failed to read JSON: {exc}", file=sys.stderr)
        sys.exit(1)

    content_dir = payload.get("contentDir") or "content"
    output_path = payload.get("outputPath")
    public_path = payload.get("publicPath")

    articles = load_articles(content_dir)
    values = [a.get("wordCount") or 0 for a in articles if a.get("wordCount")]

    try:
        from lib.render_stats_charts import render_words_histogram, setup_rcparams
    except ImportError as exc:  # noqa: BLE001
        print(f"Failed to import renderer: {exc}", file=sys.stderr)
        sys.exit(1)

    setup_rcparams()
    render_words_histogram(
        {
            "values": values,
            "title": "Distribution des longueurs d'article",
            "bins": 20,
        },
        output_path,
    )

    write_result(
        {
            "image": public_path,
            "meta": {
                "articles": len(values),
            },
        }
    )


if __name__ == "__main__":
    main()