"""
parent_report.py — Print a progress report for a learner.

Usage:
    python3 parent_report.py <learner_name> [--lang en|fr|kin|sw] [--db tutor_progress.db]
"""
from __future__ import annotations
import argparse, sys
from pathlib import Path
from tutor.progress_store import ProgressStore

SKILL_ICONS = {
    "counting":     "🔢",
    "number_sense": "🧠",
    "addition":     "➕",
    "subtraction":  "➖",
    "word_problem": "📖",
}

LABELS = {
    "en":  {"title":"Progress Report","skill":"Skill","attempts":"Attempts",
             "correct":"Correct","accuracy":"Accuracy","none":"No data yet."},
    "fr":  {"title":"Rapport de progrès","skill":"Compétence","attempts":"Essais",
             "correct":"Corrects","accuracy":"Précision","none":"Pas encore de données."},
    "kin": {"title":"Raporo y'Imbere","skill":"Ubumenyi","attempts":"Ibigeragezwa",
             "correct":"Byikosowe","accuracy":"Ubushobozi","none":"Nta makuru arahari."},
    "sw":  {"title":"Ripoti ya Maendeleo","skill":"Ujuzi","attempts":"Majaribio",
             "correct":"Sahihi","accuracy":"Usahihi","none":"Hakuna data bado."},
}


def main():
    parser = argparse.ArgumentParser(description="Math Tutor parent report")
    parser.add_argument("learner_id", help="Learner name / ID")
    parser.add_argument("--lang", default="en", choices=["en","fr","kin","sw"])
    parser.add_argument("--db",   default="tutor_progress.db")
    args = parser.parse_args()

    db_path = Path(args.db)
    if not db_path.exists():
        print(f"Database not found: {db_path}")
        sys.exit(1)

    store   = ProgressStore(db_path)
    summary = store.skill_summary(args.learner_id)
    L       = LABELS.get(args.lang, LABELS["en"])

    print(f"\n{'='*50}")
    print(f"  {L['title']}: {args.learner_id}")
    print(f"{'='*50}")

    if not summary:
        print(f"  {L['none']}")
    else:
        print(f"  {'':2} {L['skill']:<16} {L['attempts']:>9} {L['correct']:>9} {L['accuracy']:>10}")
        print(f"  {'-'*50}")
        for skill, data in sorted(summary.items()):
            icon = SKILL_ICONS.get(skill, "  ")
            acc  = f"{data['accuracy']*100:.0f}%"
            print(f"  {icon} {skill:<16} {data['attempts']:>9} {data['correct']:>9} {acc:>10}")

    total_attempts = sum(d["attempts"] for d in summary.values())
    total_correct  = sum(d["correct"]  for d in summary.values())
    overall_acc    = f"{total_correct/total_attempts*100:.0f}%" if total_attempts else "—"
    print(f"\n  Overall: {total_correct}/{total_attempts} correct ({overall_acc})")
    print(f"{'='*50}\n")


if __name__ == "__main__":
    main()