package renew

import (
	"context"
	"errors"
	"strings"

	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/batchimport"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/library/batchinput/text"

	"github.com/gogf/gf/v2/errors/gerror"
)

func ParseInputRows(ctx context.Context, input string) ([]batchimport.Row, error) {
	lines, err := text.ParseWhitespaceFields(ctx, input)
	if err != nil {
		if errors.Is(err, text.ErrEmptyInput) {
			return nil, gerror.New("批量输入续费数据为空")
		}
		return nil, err
	}

	renewRows := make([]*Row, 0, len(lines))
	for _, line := range lines {
		renewRows = append(renewRows, parseRenewInputLine(line))
	}

	rows := make([]batchimport.Row, 0, len(renewRows))
	for _, row := range renewRows {
		rows = append(rows, row)
	}
	return rows, nil
}

func parseRenewInputLine(line text.FieldLine) *Row {
	row := &Row{RowNo: line.RowNo}
	switch len(line.Fields) {
	case 1:
		row.InputCode = strings.TrimSpace(line.Fields[0])
		row.Iccid = row.InputCode
	case 3, 4:
		row.Iccid = strings.TrimSpace(line.Fields[0])
		row.Msisdn = strings.TrimSpace(line.Fields[1])
		row.Imsi = strings.TrimSpace(line.Fields[2])
		row.InputCode = firstNonEmpty(row.Iccid, row.Msisdn, row.Imsi)
	default:
		row.AddReason("格式错误，应为 ICCID/MSISDN/IMSI 任一号码，或 ICCID MSISDN IMSI")
	}
	return row
}

func firstNonEmpty(values ...string) string {
	for _, value := range values {
		if strings.TrimSpace(value) != "" {
			return strings.TrimSpace(value)
		}
	}
	return ""
}