#!/usr/bin/env python3

import sys
import json
import os
from collections import defaultdict

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)

    counts = defaultdict(int)
    for article in articles:
        section = article.get("section") or "root"
        counts[section] += 1

    entries = sorted(counts.items(), key=lambda item: item[1], reverse=True)

    max_slices = 21
    top = entries[:max_slices]
    rest = entries[max_slices:]
    if rest:
        rest_sum = sum(v for _, v in rest)
        top.append(("Others", rest_sum))

    labels = [label for label, _ in top]
    values = [value for _, value in top]

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

    setup_rcparams()
    render_articles_per_section({"labels": labels, "values": values, "title": "Articles par section"}, output_path)

    write_result(
        {
            "image": public_path,
            "meta": {
                "sections": len(entries),
            },
        }
    )


if __name__ == "__main__":
    main()