"""
种子管理 API 蓝图
"""
from flask import Blueprint, request, jsonify
from werkzeug.utils import secure_filename
import os
import tempfile
from services.torrent_service import TorrentService

torrents_bp = Blueprint('torrents', __name__, url_prefix='/api/torrents')
torrent_service = TorrentService()


@torrents_bp.route('', methods=['GET'])
def get_torrents():
    """获取种子列表"""
    try:
        # 获取查询参数
        client_ids = request.args.getlist('client_ids')
        
        data = torrent_service.get_all_torrents(client_ids if client_ids else None)
        return jsonify({
            'success': True,
            'data': data
        })
        
    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 500


@torrents_bp.route('/maindata', methods=['GET'])
def get_maindata():
    """获取主要数据（聚合接口）"""
    try:
        # 获取查询参数
        client_ids = request.args.getlist('client_ids')
        
        data = torrent_service.get_all_torrents(client_ids if client_ids else None)
        return jsonify({
            'success': True,
            'data': data
        })
        
    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 500


@torrents_bp.route('/pause', methods=['POST'])
def pause_torrents():
    """暂停种子"""
    try:
        data = request.get_json()
        torrent_hashes = data.get('hashes', [])
        client_id = data.get('client_id')
        
        if not torrent_hashes:
            return jsonify({
                'success': False,
                'error': '请提供要暂停的种子哈希值'
            }), 400
        
        result = torrent_service.pause_torrents(torrent_hashes, client_id)
        return jsonify(result)
        
    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 500


@torrents_bp.route('/resume', methods=['POST'])
def resume_torrents():
    """恢复种子"""
    try:
        data = request.get_json()
        torrent_hashes = data.get('hashes', [])
        client_id = data.get('client_id')
        
        if not torrent_hashes:
            return jsonify({
                'success': False,
                'error': '请提供要恢复的种子哈希值'
            }), 400
        
        result = torrent_service.resume_torrents(torrent_hashes, client_id)
        return jsonify(result)
        
    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 500


@torrents_bp.route('/delete', methods=['POST'])
def delete_torrents():
    """删除种子"""
    try:
        data = request.get_json()
        torrent_hashes = data.get('hashes', [])
        client_id = data.get('client_id')
        delete_files = data.get('delete_files', False)
        
        if not torrent_hashes:
            return jsonify({
                'success': False,
                'error': '请提供要删除的种子哈希值'
            }), 400
        
        result = torrent_service.delete_torrents(torrent_hashes, delete_files, client_id)
        return jsonify(result)
        
    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 500


@torrents_bp.route('/<torrent_hash>/details', methods=['GET'])
def get_torrent_details(torrent_hash):
    """获取种子详细信息"""
    try:
        client_id = request.args.get('client_id')
        
        if not client_id:
            return jsonify({
                'success': False,
                'error': '请提供客户端ID'
            }), 400
        
        details = torrent_service.get_torrent_details(torrent_hash, client_id)
        
        if details:
            return jsonify({
                'success': True,
                'data': details
            })
        else:
            return jsonify({
                'success': False,
                'error': '种子不存在或无法获取详细信息'
            }), 404
            
    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 500


@torrents_bp.route('/add', methods=['POST'])
def add_torrent():
    """添加种子"""
    try:
        # 获取客户端ID
        client_id = request.form.get('client_id') or request.json.get('client_id') if request.is_json else None

        if not client_id:
            return jsonify({
                'success': False,
                'error': '请指定客户端ID'
            }), 400

        # 检查添加方式
        if 'torrent_file' in request.files:
            # 种子文件上传
            return _add_torrent_file(client_id)
        elif request.is_json:
            data = request.get_json()
            if 'magnet_link' in data:
                # 磁力链接
                return _add_magnet_link(client_id, data['magnet_link'], data.get('options', {}))
            elif 'torrent_url' in data:
                # 种子URL
                return _add_torrent_url(client_id, data['torrent_url'], data.get('options', {}))

        return jsonify({
            'success': False,
            'error': '请提供种子文件、磁力链接或种子URL'
        }), 400

    except Exception as e:
        return jsonify({
            'success': False,
            'error': str(e)
        }), 500


def _add_torrent_file(client_id):
    """添加种子文件"""
    file = request.files['torrent_file']
    if file.filename == '':
        return jsonify({
            'success': False,
            'error': '请选择种子文件'
        }), 400

    if not file.filename.lower().endswith('.torrent'):
        return jsonify({
            'success': False,
            'error': '请上传.torrent文件'
        }), 400

    # 获取可选参数
    options = {
        'category': request.form.get('category', ''),
        'tags': request.form.get('tags', ''),
        'save_path': request.form.get('save_path', ''),
        'paused': request.form.get('paused', 'false').lower() == 'true'
    }

    # 保存临时文件
    filename = secure_filename(file.filename)
    with tempfile.NamedTemporaryFile(delete=False, suffix='.torrent') as temp_file:
        file.save(temp_file.name)

        try:
            result = torrent_service.add_torrent_file(client_id, temp_file.name, options)
            return jsonify(result)
        finally:
            # 清理临时文件
            os.unlink(temp_file.name)


def _add_magnet_link(client_id, magnet_link, options):
    """添加磁力链接"""
    if not magnet_link.startswith('magnet:'):
        return jsonify({
            'success': False,
            'error': '无效的磁力链接'
        }), 400

    result = torrent_service.add_magnet_link(client_id, magnet_link, options)
    return jsonify(result)


def _add_torrent_url(client_id, torrent_url, options):
    """添加种子URL"""
    if not torrent_url.startswith(('http://', 'https://')):
        return jsonify({
            'success': False,
            'error': '无效的种子URL'
        }), 400

    result = torrent_service.add_torrent_url(client_id, torrent_url, options)
    return jsonify(result)