#!/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

WEEKDAY_LABELS = ["Lun", "Mar", "Mer", "Jeu", "Ven", "Sam", "Dim"]


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 = [0] * 7
    words = [0] * 7

    for article in articles:
        dt = article.get("date")
        if not dt:
            continue
        weekday = dt.weekday()  # Monday=0
        counts[weekday] += 1
        words[weekday] += article.get("wordCount") or 0

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

    setup_rcparams()
    render_weekday_activity(
        {
            "labels": WEEKDAY_LABELS,
            "articles": counts,
            "words": words,
            "title": "Articles et mots par jour de semaine",
        },
        output_path,
    )

    write_result({"image": public_path})


if __name__ == "__main__":
    main()