七月迭代短暂完结,还有很多后端的关键东西没有弄,这是一版赶时间做的东西

internal/task/device_batch_allocation.go

@@ -0,0 +1,211 @@
+package task
+
+import (
+	"bytes"
+	"context"
+	"encoding/csv"
+	"io"
+	"os"
+	"strings"
+
+	"github.com/hibiken/asynq"
+
+	"github.com/break/junhong_cmp_fiber/internal/model"
+	"github.com/break/junhong_cmp_fiber/internal/model/dto"
+	"github.com/break/junhong_cmp_fiber/pkg/constants"
+	"github.com/break/junhong_cmp_fiber/pkg/errors"
+	"github.com/break/junhong_cmp_fiber/pkg/middleware"
+)
+
+type deviceBatchAllocationRow struct {
+	line       int
+	identifier string
+}
+
+func (h *DeviceImportHandler) handleDeviceBatchAllocation(ctx context.Context, task *model.DeviceImportTask) error {
+	if h.allocationExecutor == nil || task.TargetID == nil || *task.TargetID == 0 {
+		_ = h.importTaskStore.UpdateStatus(ctx, task.ID, model.ImportTaskStatusFailed, "设备批量分配执行器或目标未配置")
+		return asynq.SkipRetry
+	}
+	rows, err := h.downloadDeviceBatchAllocationCSV(ctx, task)
+	if err != nil {
+		_ = h.importTaskStore.UpdateStatus(ctx, task.ID, model.ImportTaskStatusFailed, err.Error())
+		return asynq.SkipRetry
+	}
+	workerCtx := middleware.SetUserContext(ctx, &middleware.UserContextInfo{
+		UserID: task.Creator, UserType: task.OperatorType, Username: task.CreatorName,
+		ShopID: valueOrZero(task.OperatorShopID), SubordinateShopIDs: operatorDeviceShopScope(task.OperatorShopID),
+	})
+	result, err := h.executeDeviceBatchAllocation(workerCtx, task, rows)
+	if err != nil {
+		_ = h.importTaskStore.UpdateStatus(ctx, task.ID, model.ImportTaskStatusFailed, err.Error())
+		return asynq.SkipRetry
+	}
+	_ = h.importTaskStore.UpdateResult(ctx, task.ID, len(rows), result.successCount, result.skipCount, result.failCount, 0, result.skippedItems, result.failedItems, nil)
+	if result.successCount == 0 && result.failCount > 0 {
+		_ = h.importTaskStore.UpdateStatus(ctx, task.ID, model.ImportTaskStatusFailed, "所有设备分配均失败")
+	} else {
+		_ = h.importTaskStore.UpdateStatus(ctx, task.ID, model.ImportTaskStatusCompleted, "")
+	}
+	return nil
+}
+
+func (h *DeviceImportHandler) downloadDeviceBatchAllocationCSV(ctx context.Context, task *model.DeviceImportTask) ([]deviceBatchAllocationRow, error) {
+	if h.storageService == nil || task.StorageKey == "" {
+		return nil, errors.New(errors.CodeServiceUnavailable, "设备批量分配对象存储未配置")
+	}
+	path, cleanup, err := h.storageService.DownloadToTemp(ctx, task.StorageKey)
+	if err != nil {
+		return nil, errors.Wrap(errors.CodeInternalError, err, "下载设备批量分配CSV失败")
+	}
+	defer cleanup()
+	info, err := os.Stat(path)
+	if err != nil || info.Size() > constants.DeviceBatchAllocationMaxFileSize {
+		return nil, errors.New(errors.CodeInvalidParam, "设备批量分配CSV不存在或超过10MB")
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, errors.Wrap(errors.CodeInternalError, err, "读取设备批量分配CSV失败")
+	}
+	return parseDeviceBatchAllocationCSV(data)
+}
+
+func parseDeviceBatchAllocationCSV(data []byte) ([]deviceBatchAllocationRow, error) {
+	data = bytes.TrimPrefix(data, []byte{0xEF, 0xBB, 0xBF})
+	reader := csv.NewReader(bytes.NewReader(data))
+	reader.FieldsPerRecord = -1
+	rows := make([]deviceBatchAllocationRow, 0)
+	for line := 1; ; line++ {
+		record, err := reader.Read()
+		if err == io.EOF {
+			break
+		}
+		if err != nil || len(record) != 1 {
+			return nil, errors.New(errors.CodeInvalidParam, "设备批量分配CSV必须只有一列设备标识")
+		}
+		identifier := strings.TrimSpace(record[0])
+		if line == 1 && (identifier == "device_identifier" || identifier == "设备标识") {
+			continue
+		}
+		if identifier == "" {
+			return nil, errors.New(errors.CodeInvalidParam, "设备批量分配CSV存在空设备标识")
+		}
+		rows = append(rows, deviceBatchAllocationRow{line: line, identifier: identifier})
+		if len(rows) > constants.DeviceBatchAllocationMaxRows {
+			return nil, errors.New(errors.CodeInvalidParam, "设备批量分配CSV最多包含1000行设备")
+		}
+	}
+	if len(rows) == 0 {
+		return nil, errors.New(errors.CodeInvalidParam, "设备批量分配CSV没有有效数据行")
+	}
+	return rows, nil
+}
+
+func (h *DeviceImportHandler) executeDeviceBatchAllocation(ctx context.Context, task *model.DeviceImportTask, rows []deviceBatchAllocationRow) (*deviceImportResult, error) {
+	result := &deviceImportResult{skippedItems: model.ImportResultItems{}, failedItems: model.ImportResultItems{}}
+	identifiers := make([]string, 0, len(rows))
+	for _, row := range rows {
+		identifiers = append(identifiers, row.identifier)
+	}
+	devices, err := h.deviceStore.GetByIdentifiers(ctx, identifiers)
+	if err != nil {
+		return nil, errors.Wrap(errors.CodeDatabaseError, err, "批量查询设备失败")
+	}
+	lookup := make(map[string]*model.Device, len(devices)*3)
+	for _, device := range devices {
+		for _, key := range []string{device.VirtualNo, device.IMEI, device.SN} {
+			if key != "" {
+				lookup[key] = device
+			}
+		}
+	}
+	seen := make(map[uint]struct{})
+	pending := make([]uint, 0, len(rows))
+	lineByID := make(map[uint]deviceBatchAllocationRow)
+	for _, row := range rows {
+		device := lookup[row.identifier]
+		if device == nil {
+			result.failedItems = append(result.failedItems, deviceAllocationResultItem(row, "设备不存在或无权限"))
+			result.failCount++
+			continue
+		}
+		if _, exists := seen[device.ID]; exists {
+			result.skippedItems = append(result.skippedItems, deviceAllocationResultItem(row, "同一文件重复设备"))
+			result.skipCount++
+			continue
+		}
+		seen[device.ID] = struct{}{}
+		if deviceAlreadyAtAllocationTarget(device, task.OperationType, *task.TargetID) {
+			result.successCount++
+			continue
+		}
+		pending = append(pending, device.ID)
+		lineByID[device.ID] = row
+	}
+	if len(pending) == 0 {
+		return result, nil
+	}
+	failed, err := h.applyDeviceBatchAllocation(ctx, task, pending)
+	if err != nil {
+		return nil, err
+	}
+	for _, id := range pending {
+		if reason, exists := failed[id]; exists {
+			result.failedItems = append(result.failedItems, deviceAllocationResultItem(lineByID[id], reason))
+			result.failCount++
+		} else {
+			result.successCount++
+		}
+	}
+	return result, nil
+}
+
+func (h *DeviceImportHandler) applyDeviceBatchAllocation(ctx context.Context, task *model.DeviceImportTask, deviceIDs []uint) (map[uint]string, error) {
+	failed := make(map[uint]string)
+	switch task.OperationType {
+	case constants.DeviceImportOperationAssignShop:
+		response, err := h.allocationExecutor.AllocateDevices(ctx, &dto.AllocateDevicesRequest{TargetShopID: *task.TargetID, DeviceIDs: deviceIDs, Remark: "CSV批量分配任务 " + task.TaskNo}, task.Creator, task.OperatorShopID)
+		if err != nil {
+			return nil, err
+		}
+		for _, item := range response.FailedItems {
+			failed[item.DeviceID] = item.Reason
+		}
+	case constants.DeviceImportOperationAssignSeries:
+		response, err := h.allocationExecutor.BatchSetSeriesBinding(ctx, &dto.BatchSetDeviceSeriesBindngRequest{SelectionType: dto.SelectionTypeList, DeviceIDs: deviceIDs, SeriesID: *task.TargetID}, task.OperatorShopID)
+		if err != nil {
+			return nil, err
+		}
+		for _, item := range response.FailedItems {
+			failed[item.DeviceID] = item.Reason
+		}
+	default:
+		return nil, errors.New(errors.CodeInvalidParam, "设备批量分配任务类型不支持")
+	}
+	return failed, nil
+}
+
+func deviceAlreadyAtAllocationTarget(device *model.Device, operation string, targetID uint) bool {
+	if operation == constants.DeviceImportOperationAssignShop {
+		return device.ShopID != nil && *device.ShopID == targetID
+	}
+	return operation == constants.DeviceImportOperationAssignSeries && device.SeriesID != nil && *device.SeriesID == targetID
+}
+
+func deviceAllocationResultItem(row deviceBatchAllocationRow, reason string) model.ImportResultItem {
+	return model.ImportResultItem{Line: row.line, ICCID: row.identifier, Reason: reason}
+}
+
+func valueOrZero(value *uint) uint {
+	if value == nil {
+		return 0
+	}
+	return *value
+}
+
+func operatorDeviceShopScope(shopID *uint) []uint {
+	if shopID == nil {
+		return nil
+	}
+	return []uint{*shopID}
+}