#!/usr/bin/env python3
"""bookshelf — 图书阅读管理 CLI。"""

import argparse
import sys
import db
import web


STATUS_CHOICES = ["to-read", "reading", "read"]
FORMAT_CHOICES = ["paper", "ebook"]


def cmd_add(args):
    db.init_db()
    book_id = db.add_book(
        args.title,
        author=args.author,
        translator=args.translator,
        publisher=args.publisher,
        pub_date=args.pub_date,
        cover_url=args.cover_url,
        format=args.format,
        status=args.status,
        rating=args.rating,
        douban_score=args.douban_score,
        goodreads_score=args.goodreads_score,
        tags=args.tags or "",
        notes=args.notes,
        start_date=args.start_date,
        finish_date=args.finish_date,
    )
    print(f"✅ 已添加：《{args.title}》(ID: {book_id})")


def cmd_list(args):
    db.init_db()
    books = db.list_books(status=args.status, format=args.format, tag=args.tag)
    if not books:
        print("📚 暂无书目。")
        return
    for b in books:
        status_icon = {"to-read": "📖", "reading": "📗", "read": "✅"}.get(b["status"], "📕")
        fmt_icon = "📱" if b["format"] == "ebook" else "📕"
        rating_str = f" ⭐{b['rating']}" if b["rating"] else ""
        tags_str = f" [{b['tags']}]" if b["tags"] else ""
        print(f"  {status_icon} [{b['id']:>3}] 《{b['title']}》— {b['author'] or '未知'}"
              f"  {fmt_icon}{rating_str}{tags_str}")


def cmd_update(args):
    db.init_db()
    book = db.get_book(args.id)
    if not book:
        print(f"❌ 未找到 ID 为 {args.id} 的书目。")
        sys.exit(1)
    updates = {}
    for field in ["title", "author", "translator", "publisher", "pub_date",
                   "cover_url", "format", "status", "rating", "douban_score",
                   "goodreads_score", "tags", "notes", "start_date", "finish_date"]:
        val = getattr(args, field.replace("-", "_"), None)
        if val is not None:
            updates[field] = val
    if not updates:
        print("⚠️  未指定任何要更新的字段。")
        return
    db.update_book(args.id, **updates)
    print(f"✅ 已更新：《{book['title']}》(ID: {args.id})")


def cmd_delete(args):
    db.init_db()
    book = db.get_book(args.id)
    if not book:
        print(f"❌ 未找到 ID 为 {args.id} 的书目。")
        sys.exit(1)
    db.delete_book(args.id)
    print(f"🗑️  已删除：《{book['title']}》(ID: {args.id})")


def cmd_build(args):
    db.init_db()
    output_path = web.build()
    print(f"🌐 网页已生成：{output_path}")


def main():
    parser = argparse.ArgumentParser(
        prog="bookshelf",
        description="📚 个人图书阅读管理工具",
    )
    sub = parser.add_subparsers(dest="command", required=True)

    # --- add ---
    p_add = sub.add_parser("add", help="添加书目")
    p_add.add_argument("title", help="书名")
    p_add.add_argument("--author", help="作者")
    p_add.add_argument("--translator", help="译者")
    p_add.add_argument("--publisher", help="出版社")
    p_add.add_argument("--pub-date", help="出版日期")
    p_add.add_argument("--cover-url", help="封面图片 URL")
    p_add.add_argument("--format", choices=FORMAT_CHOICES, default="paper", help="格式")
    p_add.add_argument("--status", choices=STATUS_CHOICES, default="to-read", help="阅读状态")
    p_add.add_argument("--rating", type=int, choices=range(1, 6), help="个人评分 1-5")
    p_add.add_argument("--douban-score", type=float, help="豆瓣评分")
    p_add.add_argument("--goodreads-score", type=float, help="Goodreads 评分")
    p_add.add_argument("--tags", help="阅读主题标签，逗号分隔")
    p_add.add_argument("--notes", help="笔记/简评")
    p_add.add_argument("--start-date", help="开始阅读日期")
    p_add.add_argument("--finish-date", help="完成阅读日期")
    p_add.set_defaults(func=cmd_add)

    # --- list ---
    p_list = sub.add_parser("list", help="列出书目")
    p_list.add_argument("--status", choices=STATUS_CHOICES, help="按状态筛选")
    p_list.add_argument("--format", choices=FORMAT_CHOICES, help="按格式筛选")
    p_list.add_argument("--tag", help="按标签筛选")
    p_list.set_defaults(func=cmd_list)

    # --- update ---
    p_upd = sub.add_parser("update", help="更新书目")
    p_upd.add_argument("id", type=int, help="书目 ID")
    p_upd.add_argument("--title", help="书名")
    p_upd.add_argument("--author", help="作者")
    p_upd.add_argument("--translator", help="译者")
    p_upd.add_argument("--publisher", help="出版社")
    p_upd.add_argument("--pub-date", help="出版日期")
    p_upd.add_argument("--cover-url", help="封面图片 URL")
    p_upd.add_argument("--format", choices=FORMAT_CHOICES, help="格式")
    p_upd.add_argument("--status", choices=STATUS_CHOICES, help="阅读状态")
    p_upd.add_argument("--rating", type=int, choices=range(1, 6), help="个人评分 1-5")
    p_upd.add_argument("--douban-score", type=float, help="豆瓣评分")
    p_upd.add_argument("--goodreads-score", type=float, help="Goodreads 评分")
    p_upd.add_argument("--tags", help="阅读主题标签，逗号分隔")
    p_upd.add_argument("--notes", help="笔记/简评")
    p_upd.add_argument("--start-date", help="开始阅读日期")
    p_upd.add_argument("--finish-date", help="完成阅读日期")
    p_upd.set_defaults(func=cmd_update)

    # --- delete ---
    p_del = sub.add_parser("delete", help="删除书目")
    p_del.add_argument("id", type=int, help="书目 ID")
    p_del.set_defaults(func=cmd_delete)

    # --- build ---
    p_build = sub.add_parser("build", help="生成展示网页")
    p_build.set_defaults(func=cmd_build)

    args = parser.parse_args()
    args.func(args)


if __name__ == "__main__":
    main()