package copydata

import (
	consts "cid/consts/public"
	dto "cid/model/dto/copydata"
	entity "cid/model/entity/copydata"
	"context"
	"errors"

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

var PopulationReport = new(populationReportDao)

type populationReportDao struct{}

// Insert 插入人群报表数据
func (d *populationReportDao) Insert(ctx context.Context, req *dto.PopulationReportItem) (id int64, err error) {
	var entityData *entity.PopulationReport
	if err = gconv.Struct(req, &entityData); err != nil {
		return
	}

	r, err := gfdb.DB(ctx).Model(ctx, consts.PopulationReportTable).Data(&entityData).Insert()
	if err != nil {
		return
	}
	return r.LastInsertId()
}

// BatchInsert 批量插入人群报表数据
func (d *populationReportDao) BatchInsert(ctx context.Context, reqs []*dto.PopulationReportItem) (successCount int64, failCount int64, failedIndexes []int64, err error) {
	if len(reqs) == 0 {
		return 0, 0, nil, errors.New("批量插入数据不能为空")
	}

	// 分批处理，每批 100 条
	batchSize := 100
	successCount = 0
	failCount = 0
	failedIndexes = make([]int64, 0)

	for i := 0; i < len(reqs); i += batchSize {
		end := i + batchSize
		if end > len(reqs) {
			end = len(reqs)
		}

		batch := reqs[i:end]
		entityList := make([]*entity.PopulationReport, len(batch))

		for j, req := range batch {
			var entityData entity.PopulationReport
			if err = gconv.Struct(req, &entityData); err != nil {
				failCount++
				failedIndexes = append(failedIndexes, int64(i+j))
				continue
			}
			entityList[j] = &entityData
		}

		if len(entityList) == 0 {
			continue
		}

		// 执行批量插入
		_, err = gfdb.DB(ctx).Model(ctx, consts.PopulationReportTable).Data(entityList).Insert()
		if err != nil {
			// 批量插入失败，尝试逐条插入
			for k := range batch {
				_, singleErr := d.Insert(ctx, batch[k])
				if singleErr != nil {
					failCount++
					failedIndexes = append(failedIndexes, int64(i+k))
				} else {
					successCount++
				}
			}
		} else {
			successCount += int64(len(entityList))
		}
	}

	return successCount, failCount, failedIndexes, nil
}

// List 查询人群报表数据列表
func (d *populationReportDao) List(ctx context.Context, req *dto.ListPopulationReportReq) ([]*entity.PopulationReport, int, error) {
	model := gfdb.DB(ctx).Model(ctx, consts.PopulationReportTable).Model

	// 构建查询条件
	if req.ReportDateStr != "" {
		model = model.Where("report_date_str", req.ReportDateStr)
	}
	if req.PhotoId != "" {
		model = model.Where("photo_id", req.PhotoId)
	}
	if req.Keyword != "" {
		model = model.Where("photo_name LIKE ?", "%"+req.Keyword+"%")
	}

	// 设置排序
	model = model.OrderDesc("created_at")

	// 分页查询并获取总数
	total, err := model.Count()
	if err != nil {
		return nil, 0, err
	}

	var list []*entity.PopulationReport
	if req.Page != nil {
		err = model.Page(int(req.Page.PageNum), int(req.Page.PageSize)).Scan(&list)
	} else {
		err = model.Scan(&list)
	}

	if err != nil {
		return nil, 0, err
	}

	return list, total, nil
}