package change

import (
	"context"
	"strings"

	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/consts"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/dao"
	"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/model"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model/do"
	"git.5iot.com/iotlcm-public/iotlcm-admin-svr/internal/model/entity"

	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/encoding/gjson"
	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/os/gtime"
)

type AsyncConfirmInput struct {
	BatchNo             string
	TargetBatchType     int
	NewPackageCode      string
	DurationMonths      int
	GiftDurationMonths  int
	EffectiveMode       string
	OfflineContract     bool
	BuyerNote           string
	AdminNote           string
	Remark              string
	PriceSnapshot       *model.TSimCardChangePriceSnapshot
	SourceBatchNo       string
	PackageBeginTimeStr string
	Operator            batchimport.OperatorContext
}

type AsyncConfirmResult struct {
	BatchNo          string
	BatchType        int
	BatchAsyncStatus int
}

// ConvertPrepareToAsync 以 CAS 方式把 batch_type=4 + batch_async_status=Success + run_result=Success 的预处理批次
// 转换为 batch_type=102 的待处理变更批次：重置主表正式执行相关字段并把明细的 BatchType 切换到 102、DetailStatus 重置为 Pending。
func ConvertPrepareToAsync(ctx context.Context, tx gdb.TX, in *AsyncConfirmInput) (*AsyncConfirmResult, error) {
	if in == nil {
		return nil, gerror.New("变更确认参数不能为空")
	}
	batchNo := strings.TrimSpace(in.BatchNo)
	if batchNo == "" {
		return nil, gerror.New("变更批次号不能为空")
	}
	targetBatchType := in.TargetBatchType
	if targetBatchType == 0 {
		targetBatchType = consts.BatchTypeChange
	}
	columns := dao.BatchMain.Columns()
	main := &entity.BatchMain{}
	err := tx.Ctx(ctx).Model(dao.BatchMain.Table()).
		Where(columns.BatchNo, batchNo).
		Where(columns.TenantId, contexts.GetTenantId(ctx)).
		Where(columns.CreatedDept, contexts.GetDeptId(ctx)).
		LockUpdate().
		Scan(main)
	if err != nil {
		return nil, gerror.Wrap(err, "查询变更预处理批次失败")
	}
	if main.Id == 0 {
		return nil, gerror.New("变更预处理批次不存在")
	}
	if main.BatchType != consts.BatchTypePrepare {
		return nil, gerror.New("变更批次不是预处理类型")
	}
	if main.BatchAsyncStatus != consts.BatchAsyncStatusSuccess {
		return nil, gerror.New("变更预处理批次尚未完成")
	}
	if main.RunResult != consts.BatchRunResultSuccess {
		return nil, gerror.New("变更预处理批次未成功")
	}
	if main.BatchInfo == nil {
		return nil, gerror.New("变更预处理批次缺少快照")
	}
	if main.BatchInfo.Get("targetBatchType").Int() != targetBatchType {
		return nil, gerror.New("变更预处理批次类型不匹配")
	}

	now := gtime.Now()
	info := mergeConfirmBatchInfo(main.BatchInfo, in)
	data := do.BatchMain{
		BatchType:        targetBatchType,
		BatchAsyncStatus: consts.BatchAsyncStatusPending,
		RunResult:        consts.BatchRunResultPending,
		StartTime:        nil,
		EndTime:          nil,
		FailReason:       "",
		SuccessCount:     0,
		FailCount:        0,
		BatchInfo:        gjson.New(info),
		UpdatedBy:        in.Operator.UserId,
		UpdatedAt:        now,
	}
	res, err := tx.Ctx(ctx).Model(dao.BatchMain.Table()).
		Where(columns.Id, main.Id).
		Where(columns.BatchType, consts.BatchTypePrepare).
		Where(columns.BatchAsyncStatus, consts.BatchAsyncStatusSuccess).
		Where(columns.RunResult, consts.BatchRunResultSuccess).
		Data(data).
		Update()
	if err != nil {
		return nil, gerror.Wrap(err, "更新变更批次状态失败")
	}
	affected, err := res.RowsAffected()
	if err != nil {
		return nil, gerror.Wrap(err, "读取变更批次更新结果失败")
	}
	if affected != 1 {
		return nil, gerror.New("变更批次状态已变化，请重试")
	}

	detailColumns := dao.BatchDetail.Columns()
	if _, err = tx.Ctx(ctx).Model(dao.BatchDetail.Table()).
		Where(detailColumns.BatchNo, batchNo).
		Where(detailColumns.BatchType, consts.BatchTypePrepare).
		Data(do.BatchDetail{
			BatchType:    targetBatchType,
			DetailStatus: consts.BatchDetailStatusPending,
			ErrorCode:    "",
			ErrorReason:  "",
			UpdatedBy:    in.Operator.UserId,
			UpdatedAt:    now,
		}).
		Update(); err != nil {
		return nil, gerror.Wrap(err, "更新变更批次明细类型失败")
	}

	return &AsyncConfirmResult{
		BatchNo:          batchNo,
		BatchType:        targetBatchType,
		BatchAsyncStatus: consts.BatchAsyncStatusPending,
	}, nil
}

func mergeConfirmBatchInfo(base *gjson.Json, in *AsyncConfirmInput) g.Map {
	data := g.Map{}
	if base != nil {
		for key, value := range base.Map() {
			data[key] = value
		}
	}
	if in == nil {
		return data
	}
	if newPackageCode := strings.TrimSpace(in.NewPackageCode); newPackageCode != "" {
		data["newPackageCode"] = newPackageCode
	}
	if in.DurationMonths > 0 {
		data["durationMonths"] = in.DurationMonths
	}
	if in.GiftDurationMonths >= 0 {
		data["giftDurationMonths"] = in.GiftDurationMonths
	}
	if effectiveMode := strings.TrimSpace(in.EffectiveMode); effectiveMode != "" {
		data["effectiveMode"] = effectiveMode
	}
	if strings.TrimSpace(in.PackageBeginTimeStr) != "" {
		data["packageBeginTime"] = strings.TrimSpace(in.PackageBeginTimeStr)
	}
	data["offlineContractCompleted"] = in.OfflineContract
	if note := strings.TrimSpace(in.BuyerNote); note != "" {
		data["buyerNote"] = note
	}
	if note := strings.TrimSpace(in.AdminNote); note != "" {
		data["adminNote"] = note
	}
	if note := strings.TrimSpace(in.Remark); note != "" {
		data["remark"] = note
	}
	if in.PriceSnapshot != nil {
		data["changeUnitPrice"] = in.PriceSnapshot.ChangeUnitPrice
	}
	if strings.TrimSpace(in.SourceBatchNo) != "" {
		data["sourceBatchNo"] = strings.TrimSpace(in.SourceBatchNo)
	}
	return data
}