"""Work Record API routes."""
from flask import request
from flask_restx import Namespace, Resource, fields
from app.services.work_record_service import WorkRecordService
from app.utils.auth_decorator import require_auth

work_record_ns = Namespace('work-records', description='工作记录管理接口')

# API models for Swagger documentation
work_record_model = work_record_ns.model('WorkRecord', {
    'id': fields.Integer(readonly=True, description='记录ID'),
    'person_id': fields.Integer(required=True, description='人员ID'),
    'person_name': fields.String(readonly=True, description='人员姓名'),
    'item_id': fields.Integer(required=True, description='物品ID'),
    'item_name': fields.String(readonly=True, description='物品名称'),
    'unit_price': fields.Float(readonly=True, description='单价'),
    'work_date': fields.String(required=True, description='工作日期 (YYYY-MM-DD)'),
    'quantity': fields.Integer(required=True, description='数量'),
    'total_price': fields.Float(readonly=True, description='总价'),
    'created_at': fields.String(readonly=True, description='创建时间'),
    'updated_at': fields.String(readonly=True, description='更新时间')
})

work_record_input = work_record_ns.model('WorkRecordInput', {
    'person_id': fields.Integer(required=True, description='人员ID'),
    'item_id': fields.Integer(required=True, description='物品ID'),
    'work_date': fields.String(required=True, description='工作日期 (YYYY-MM-DD)'),
    'quantity': fields.Integer(required=True, description='数量')
})

work_record_update = work_record_ns.model('WorkRecordUpdate', {
    'id': fields.Integer(required=True, description='记录ID'),
    'person_id': fields.Integer(description='人员ID'),
    'item_id': fields.Integer(description='物品ID'),
    'work_date': fields.String(description='工作日期 (YYYY-MM-DD)'),
    'quantity': fields.Integer(description='数量')
})

work_record_delete = work_record_ns.model('WorkRecordDelete', {
    'id': fields.Integer(required=True, description='记录ID')
})

# Response models
success_response = work_record_ns.model('SuccessResponse', {
    'success': fields.Boolean(description='操作是否成功'),
    'data': fields.Raw(description='返回数据'),
    'message': fields.String(description='消息')
})

error_response = work_record_ns.model('ErrorResponse', {
    'success': fields.Boolean(description='操作是否成功'),
    'error': fields.String(description='错误信息'),
    'code': fields.String(description='错误代码')
})

# Daily summary models
daily_summary_item = work_record_ns.model('DailySummaryItem', {
    'item_name': fields.String(description='物品名称'),
    'unit_price': fields.Float(description='单价'),
    'quantity': fields.Integer(description='数量'),
    'total_price': fields.Float(description='总价')
})

daily_summary_person = work_record_ns.model('DailySummaryPerson', {
    'person_id': fields.Integer(description='人员ID'),
    'person_name': fields.String(description='人员姓名'),
    'total_items': fields.Integer(description='总数量'),
    'total_value': fields.Float(description='总金额'),
    'items': fields.List(fields.Nested(daily_summary_item), description='物品明细')
})

daily_summary_response = work_record_ns.model('DailySummaryResponse', {
    'date': fields.String(description='日期'),
    'summary': fields.List(fields.Nested(daily_summary_person), description='人员汇总'),
    'grand_total_items': fields.Integer(description='总数量'),
    'grand_total_value': fields.Float(description='总金额')
})

# Monthly summary models
monthly_top_performer = work_record_ns.model('MonthlyTopPerformer', {
    'person_id': fields.Integer(description='人员ID'),
    'person_name': fields.String(description='人员姓名'),
    'earnings': fields.Float(description='收入')
})

monthly_item_breakdown = work_record_ns.model('MonthlyItemBreakdown', {
    'item_id': fields.Integer(description='物品ID'),
    'item_name': fields.String(description='物品名称'),
    'quantity': fields.Integer(description='数量'),
    'earnings': fields.Float(description='收入')
})

monthly_summary_response = work_record_ns.model('MonthlySummaryResponse', {
    'year': fields.Integer(description='年份'),
    'month': fields.Integer(description='月份'),
    'total_records': fields.Integer(description='总记录数'),
    'total_earnings': fields.Float(description='总收入'),
    'top_performers': fields.List(fields.Nested(monthly_top_performer), description='业绩排名'),
    'item_breakdown': fields.List(fields.Nested(monthly_item_breakdown), description='物品收入明细')
})


@work_record_ns.route('')
class WorkRecordList(Resource):
    """Resource for listing work records with filters."""
    
    @work_record_ns.doc('list_work_records')
    @work_record_ns.param('person_id', '按人员ID筛选', type=int)
    @work_record_ns.param('date', '按具体日期筛选 (YYYY-MM-DD)', type=str)
    @work_record_ns.param('year', '按年份筛选 (如 2024)', type=int)
    @work_record_ns.param('month', '按月份筛选 (1-12)', type=int)
    @work_record_ns.param('start_date', '开始日期 (YYYY-MM-DD)', type=str)
    @work_record_ns.param('end_date', '结束日期 (YYYY-MM-DD)', type=str)
    @work_record_ns.response(200, 'Success', success_response)
    @require_auth
    def get(self):
        """获取工作记录列表（支持筛选）"""
        person_id = request.args.get('person_id', type=int)
        date = request.args.get('date')
        year = request.args.get('year', type=int)
        month = request.args.get('month', type=int)
        start_date = request.args.get('start_date')
        end_date = request.args.get('end_date')
        
        # 如果指定了具体日期，使用 start_date 和 end_date 来筛选同一天
        if date:
            start_date = date
            end_date = date
        
        work_records = WorkRecordService.get_all(
            person_id=person_id,
            start_date=start_date,
            end_date=end_date,
            year=year,
            month=month
        )
        return {
            'success': True,
            'data': work_records,
            'message': 'Work records retrieved successfully'
        }, 200


@work_record_ns.route('/<int:id>')
@work_record_ns.param('id', '记录ID')
class WorkRecordDetail(Resource):
    """Resource for getting a single work record."""
    
    @work_record_ns.doc('get_work_record')
    @work_record_ns.response(200, 'Success', success_response)
    @work_record_ns.response(404, 'Work record not found', error_response)
    @require_auth
    def get(self, id):
        """根据ID获取工作记录"""
        work_record, error = WorkRecordService.get_by_id(id)
        if error:
            return {
                'success': False,
                'error': error,
                'code': 'NOT_FOUND'
            }, 404
        
        return {
            'success': True,
            'data': work_record,
            'message': 'Work record retrieved successfully'
        }, 200


@work_record_ns.route('/create')
class WorkRecordCreate(Resource):
    """Resource for creating a work record."""
    
    @work_record_ns.doc('create_work_record')
    @work_record_ns.expect(work_record_input)
    @work_record_ns.response(200, 'Success', success_response)
    @work_record_ns.response(400, 'Validation error', error_response)
    @work_record_ns.response(404, 'Reference not found', error_response)
    @require_auth
    def post(self):
        """创建新工作记录"""
        data = work_record_ns.payload
        person_id = data.get('person_id')
        item_id = data.get('item_id')
        work_date = data.get('work_date')
        quantity = data.get('quantity')
        
        work_record, error = WorkRecordService.create(
            person_id=person_id,
            item_id=item_id,
            work_date=work_date,
            quantity=quantity
        )
        
        if error:
            if 'not found' in error.lower():
                return {
                    'success': False,
                    'error': error,
                    'code': 'REFERENCE_ERROR'
                }, 404
            return {
                'success': False,
                'error': error,
                'code': 'VALIDATION_ERROR'
            }, 400
        
        return {
            'success': True,
            'data': work_record,
            'message': 'Work record created successfully'
        }, 200


@work_record_ns.route('/update')
class WorkRecordUpdate(Resource):
    """Resource for updating a work record."""
    
    @work_record_ns.doc('update_work_record')
    @work_record_ns.expect(work_record_update)
    @work_record_ns.response(200, 'Success', success_response)
    @work_record_ns.response(400, 'Validation error', error_response)
    @work_record_ns.response(404, 'Not found', error_response)
    @require_auth
    def post(self):
        """更新工作记录"""
        data = work_record_ns.payload
        work_record_id = data.get('id')
        
        if not work_record_id:
            return {
                'success': False,
                'error': 'Work record ID is required',
                'code': 'VALIDATION_ERROR'
            }, 400
        
        work_record, error = WorkRecordService.update(
            work_record_id=work_record_id,
            person_id=data.get('person_id'),
            item_id=data.get('item_id'),
            work_date=data.get('work_date'),
            quantity=data.get('quantity')
        )
        
        if error:
            if 'not found' in error.lower():
                return {
                    'success': False,
                    'error': error,
                    'code': 'NOT_FOUND'
                }, 404
            return {
                'success': False,
                'error': error,
                'code': 'VALIDATION_ERROR'
            }, 400
        
        return {
            'success': True,
            'data': work_record,
            'message': 'Work record updated successfully'
        }, 200


@work_record_ns.route('/delete')
class WorkRecordDelete(Resource):
    """Resource for deleting a work record."""
    
    @work_record_ns.doc('delete_work_record')
    @work_record_ns.expect(work_record_delete)
    @work_record_ns.response(200, 'Success', success_response)
    @work_record_ns.response(404, 'Work record not found', error_response)
    @require_auth
    def post(self):
        """删除工作记录"""
        data = work_record_ns.payload
        work_record_id = data.get('id')
        
        if not work_record_id:
            return {
                'success': False,
                'error': 'Work record ID is required',
                'code': 'VALIDATION_ERROR'
            }, 400
        
        success, error = WorkRecordService.delete(work_record_id)
        if error:
            return {
                'success': False,
                'error': error,
                'code': 'NOT_FOUND'
            }, 404
        
        return {
            'success': True,
            'data': None,
            'message': 'Work record deleted successfully'
        }, 200


@work_record_ns.route('/daily-summary')
class WorkRecordDailySummary(Resource):
    """Resource for getting daily summary."""
    
    @work_record_ns.doc('get_daily_summary')
    @work_record_ns.param('date', '日期 (YYYY-MM-DD)', required=True, type=str)
    @work_record_ns.param('person_id', '按人员ID筛选', type=int)
    @work_record_ns.response(200, 'Success')
    @work_record_ns.response(400, 'Validation error', error_response)
    @require_auth
    def get(self):
        """获取每日工作汇总"""
        work_date = request.args.get('date')
        person_id = request.args.get('person_id', type=int)
        
        if not work_date:
            return {
                'success': False,
                'error': 'Date parameter is required',
                'code': 'VALIDATION_ERROR'
            }, 400
        
        try:
            summary = WorkRecordService.get_daily_summary(
                work_date=work_date,
                person_id=person_id
            )
            return {
                'success': True,
                'data': summary,
                'message': 'Daily summary retrieved successfully'
            }, 200
        except ValueError as e:
            return {
                'success': False,
                'error': str(e),
                'code': 'VALIDATION_ERROR'
            }, 400


@work_record_ns.route('/monthly-summary')
class WorkRecordMonthlySummary(Resource):
    """Resource for getting monthly summary."""
    
    @work_record_ns.doc('get_monthly_summary')
    @work_record_ns.param('year', '年份 (如 2024)', required=True, type=int)
    @work_record_ns.param('month', '月份 (1-12)', required=True, type=int)
    @work_record_ns.response(200, 'Success')
    @work_record_ns.response(400, 'Validation error', error_response)
    @require_auth
    def get(self):
        """获取月度工作汇总"""
        year = request.args.get('year', type=int)
        month = request.args.get('month', type=int)
        
        if not year or not month:
            return {
                'success': False,
                'error': 'Year and month parameters are required',
                'code': 'VALIDATION_ERROR'
            }, 400
        
        if month < 1 or month > 12:
            return {
                'success': False,
                'error': 'Month must be between 1 and 12',
                'code': 'VALIDATION_ERROR'
            }, 400
        
        try:
            summary = WorkRecordService.get_monthly_summary(
                year=year,
                month=month
            )
            return {
                'success': True,
                'data': summary,
                'message': 'Monthly summary retrieved successfully'
            }, 200
        except ValueError as e:
            return {
                'success': False,
                'error': str(e),
                'code': 'VALIDATION_ERROR'
            }, 400