package mapping

import (
	consts "cid/consts/public"
	dto "cid/model/dto/mapping"
	entity "cid/model/entity/mapping"
	"context"

	"gitea.com/red-future/common/db/gfdb"
	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/util/gconv"
)

var DataMapping = new(dataMappingDao)

type dataMappingDao struct{}

// Insert 插入数据映射
func (d *dataMappingDao) Insert(ctx context.Context, req *dto.CreateDataMappingReq) (id int64, err error) {
	var res *entity.DataMapping
	if err = gconv.Struct(req, &res); err != nil {
		return
	}
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).Data(&res).Insert()
	if err != nil {
		return
	}
	return r.LastInsertId()
}

// BatchInsert 批量插入数据映射
func (d *dataMappingDao) BatchInsert(ctx context.Context, mappings []entity.DataMapping) (rows int64, err error) {
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).Data(&mappings).Insert()
	if err != nil {
		return
	}
	return r.RowsAffected()
}

// Update 更新数据映射
func (d *dataMappingDao) Update(ctx context.Context, req *dto.UpdateDataMappingReq) (rows int64, err error) {
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).Data(&req).OmitEmpty().Where(entity.DataMappingCols.Id, req.Id).Update()
	if err != nil {
		return
	}
	return r.RowsAffected()
}

// Delete 删除数据映射
func (d *dataMappingDao) Delete(ctx context.Context, req *dto.DeleteDataMappingReq) (rows int64, err error) {
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).Where(entity.DataMappingCols.Id, req.Id).Delete()
	if err != nil {
		return
	}
	return r.RowsAffected()
}

// GetOne 获取单个数据映射
func (d *dataMappingDao) GetOne(ctx context.Context, req *dto.GetDataMappingReq) (res *entity.DataMapping, err error) {
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).Where(entity.DataMappingCols.Id, req.Id).One()
	if err != nil {
		return
	}
	err = r.Struct(&res)
	return
}

// Count 获取数据映射数量
func (d *dataMappingDao) Count(ctx context.Context, req *dto.ListDataMappingReq) (count int, err error) {
	return d.buildListFilter(ctx, req).Count()
}

// List 获取数据映射列表
func (d *dataMappingDao) List(ctx context.Context, req *dto.ListDataMappingReq) (res []entity.DataMapping, total int, err error) {
	model := d.buildListFilter(ctx, req)
	model.OrderAsc(entity.DataMappingCols.Priority)
	model.OrderDesc(entity.DataMappingCols.CreatedAt)
	if req.Page != nil {
		model.Page(int(req.Page.PageNum), int(req.Page.PageSize))
	}
	r, total, err := model.AllAndCount(false)
	if err != nil {
		return
	}
	err = r.Structs(&res)
	return
}

// buildListFilter 构建列表的过滤条件
func (d *dataMappingDao) buildListFilter(ctx context.Context, req *dto.ListDataMappingReq) *gdb.Model {
	model := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).Model
	model.Where(entity.DataMappingCols.PlatformId, req.PlatformId)
	model.Where(entity.DataMappingCols.InterfaceId, req.InterfaceId)
	model.Where(entity.DataMappingCols.SourceField, req.SourceField)
	model.Where(entity.DataMappingCols.TargetField, req.TargetField)
	model.Where(entity.DataMappingCols.Status, req.Status)
	model.OmitEmptyWhere()
	return model
}

// GetByInterfaceId 根据接口ID获取映射规则列表（按优先级排序）
func (d *dataMappingDao) GetByInterfaceId(ctx context.Context, interfaceId int64) (res []entity.DataMapping, err error) {
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).
		Where(entity.DataMappingCols.InterfaceId, interfaceId).
		Where("status", "active").
		OrderAsc(entity.DataMappingCols.Priority).
		All()
	if err != nil {
		return
	}
	err = r.Structs(&res)
	return
}

// GetByInterfaceIdAndTargetField 根据接口ID和目标字段获取映射规则
func (d *dataMappingDao) GetByInterfaceIdAndTargetField(ctx context.Context, interfaceId int64, targetField string) (res *entity.DataMapping, err error) {
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).
		Where(entity.DataMappingCols.InterfaceId, interfaceId).
		Where(entity.DataMappingCols.TargetField, targetField).
		Where("status", "active").
		One()
	if err != nil {
		return
	}
	err = r.Struct(&res)
	return
}

// DeleteByInterfaceId 根据接口ID删除所有映射规则
func (d *dataMappingDao) DeleteByInterfaceId(ctx context.Context, interfaceId int64) (rows int64, err error) {
	r, err := gfdb.DB(ctx).Model(ctx, consts.DataMappingTable).
		Where(entity.DataMappingCols.InterfaceId, interfaceId).
		Delete()
	if err != nil {
		return
	}
	return r.RowsAffected()
}