package iot

import (
	"context"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/batchmetadata"
	"strings"

	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/consts"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/batchimport"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/contexts"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/logic/iot/simcardbatch/renew"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/service"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/utility/iot_excelize"

	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/net/ghttp"
	"github.com/xuri/excelize/v2"
)

func (s *sIotTSimCardRenew) DownloadExcelTemplate(ctx context.Context) error {
	f := excelize.NewFile()
	defer func() { _ = f.Close() }()

	headers := renew.ExcelTemplateHeaders()
	if err := f.SetSheetRow("Sheet1", "A1", &headers); err != nil {
		return err
	}
	widths := map[string]float64{
		"A": 22,
		"B": 20,
		"C": 20,
		"D": 18,
		"E": 18,
	}
	for column, width := range widths {
		if err := f.SetColWidth("Sheet1", column, column, width); err != nil {
			return err
		}
	}
	if err := iot_excelize.ApplyHeaderColumnsTextStyle(f); err != nil {
		return err
	}

	return iot_excelize.WriteHTTP(ctx, f, "sim_card_renew_template")
}

// SubmitExcel creates an asynchronous renew prepare batch. The worker performs
// database validation, including the six-month expiry window and latest pending
// subscription selection. The formal renew batch is created after confirmation.
func (s *sIotTSimCardRenew) SubmitExcel(ctx context.Context, in *model.TSimCardRenewExcelSubmitParam) (*model.TSimCardRenewExcelSubmitRes, error) {
	if in == nil {
		in = &model.TSimCardRenewExcelSubmitParam{}
	}

	file, err := s.getRenewUploadFile(ctx)
	if err != nil {
		return nil, err
	}

	excelProcessor := renew.NewPrepareExcelProcessor()
	req := batchimport.SubmitRequest{
		SourceChannel: batchmetadata.Console,
		ExecutionMode: batchmetadata.Bulk,
		File:          file,
		SourceType:    consts.BatchSourceTypeFile,
		Operator:      currentOperator(ctx),
		BeforeSave: func(ctx context.Context, tx gdb.TX, request *batchimport.SubmitRequest, rows []batchimport.Row) error {
			opts := excelProcessor.ExcelSubmitOptions()
			if opts == nil {
				if reason := firstRenewExcelRowReason(rows); reason != "" {
					return gerror.New(reason)
				}
				return gerror.New("续费年限不能为空")
			}
			isTop, _, err := service.AgentDept().IsTopDept(ctx)
			if err != nil {
				return gerror.Wrap(err, "校验续费付款方式失败")
			}
			paymentMode, err := normalizeRenewPaymentMode(opts.PaymentMode, isTop)
			if err != nil {
				return err
			}
			opts.PaymentMode = paymentMode

			request.BizParams = opts.ToBatchSubmitParam()
			return nil
		},
	}

	result, err := batchimport.CreatePendingUpload(ctx, req, excelProcessor, batchimport.PendingOptions{
		PrepareRows: func(ctx context.Context, rows []batchimport.Row) error {
			if len(rows) == 0 {
				return nil
			}
			return excelProcessor.ValidateRows(ctx, rows)
		},
	})
	if err != nil {
		return nil, err
	}

	res := renewExcelSubmitResult(result)
	if result.ImportStatus == consts.ImportStatusSuccess {
		publishPendingExecute(ctx, result.BatchNo, consts.BatchTypePrepare, contexts.GetTenantId(ctx))
	}
	return res, nil
}

func (s *sIotTSimCardRenew) getRenewUploadFile(ctx context.Context) (*ghttp.UploadFile, error) {
	r := g.RequestFromCtx(ctx)
	if r == nil {
		return nil, gerror.New("current context is not an HTTP request")
	}
	file := r.GetUploadFile("file")
	if file == nil {
		return nil, gerror.New("please select upload file")
	}
	return file, nil
}

func renewExcelSubmitResult(result *batchimport.Result) *model.TSimCardRenewExcelSubmitRes {
	if result == nil {
		return &model.TSimCardRenewExcelSubmitRes{}
	}
	res := &model.TSimCardRenewExcelSubmitRes{
		BatchNo:          result.BatchNo,
		BatchType:        result.BatchType,
		TargetBatchType:  consts.BatchTypeRenew,
		Status:           result.ImportStatus,
		BatchAsyncStatus: consts.BatchAsyncStatusPending,
		RunResult:        consts.BatchRunResultPending,
		Total:            result.TotalRows,
		ResultDownloadId: result.ResultDownloadId,
		ResultFileOssId:  result.ResultFileOssId,
		FailReason:       result.FailReason,
	}
	if result.ImportStatus != consts.ImportStatusSuccess {
		res.BatchAsyncStatus = consts.BatchAsyncStatusFailed
		res.RunResult = consts.BatchRunResultFailed
	}
	return res
}

func firstRenewExcelRowReason(rows []batchimport.Row) string {
	for _, item := range rows {
		row, ok := item.(*renew.Row)
		if !ok || row == nil {
			continue
		}
		if reason := strings.TrimSpace(row.Reason); reason != "" {
			return reason
		}
	}
	return ""
}