package work

import (
	model2 "ArmedPolice/app/common/model"
	"ArmedPolice/app/controller/basic"
	"ArmedPolice/app/handle"
	"ArmedPolice/app/model"
	"ArmedPolice/app/service"
	"ArmedPolice/lib"
	"ArmedPolice/serve/orm"
	"ArmedPolice/utils"
	"errors"
	"gorm.io/gorm"
	"time"
)

type Instance struct{ *service.Session }

type InstanceHandle func(session *service.Session) *Instance

type (
	// InstanceInfo 基本信息
	InstanceInfo struct {
		basic.CommonIDString
		*model.WorkInstanceInfo
	}
	// InstanceDetailInfo 详细信息
	InstanceDetailInfo struct {
		basic.CommonIDString
		*model.WorkInstanceInfo
		EquipmentID string `json:"equipment_id"`
		ScheduleID  string `json:"schedule_id"`
		Outside     struct {
			SupplierName string `json:"supplier_name"`
		} `json:"outside"`
		Within struct {
			Material []*model.WorkMaterialInfo `json:"material"`
			Purchase []*model.WorkPurchaseInfo `json:"purchase"`
		} `json:"within"`
		Distribution *model2.WorkInstanceDistribution `json:"distribution"`
		History      []*model.WorkProgressInfo        `json:"history"`
	}
	// InstanceLaunchParams 发起参数信息
	InstanceLaunchParams struct {
		ID                 uint64
		Kind               int // 类型
		Title              string
		EquipmentID        uint64   // 装备ID
		Breakdowns         []uint64 // 故障类型
		PlateNumber        string   // 车牌号
		Priority, IsAssist int      // 优先级,是否需要上级审批
		Remark             string   // 备注信息
		Supplier           *InstanceLaunchParamsForSupplier
		Material           []*InstanceLaunchParamsForMaterial
		Purchase           []*InstanceLaunchParamsForPurchase
		Distribution       *InstanceLaunchParamsForDistribution
	}
	// InstanceLaunchParamsForSupplier 供应商信息
	InstanceLaunchParamsForSupplier struct {
		SupplierID uint64 `json:"supplier_id"`
	}
	// InstanceLaunchParamsForMaterial 配件信息
	InstanceLaunchParamsForMaterial struct {
		ID         uint64  // 器材ID
		SupplierID uint64  // 供应商ID
		Number     float64 // 需要数量
	}
	// InstanceLaunchParamsForPurchase 采购信息
	InstanceLaunchParamsForPurchase struct {
		ID         uint64  // 器材ID
		SupplierID uint64  // 供应商ID
		Price      float64 // 采购单价
		Number     float64 // 采购数量
	}
	// InstanceLaunchParamsForDistribution 配送信息
	InstanceLaunchParamsForDistribution struct {
		Name, Mobile, Address string
	}
	// InstanceExamineParams 审核参数信息
	InstanceExamineParams struct {
		Material []*InstanceLaunchParamsForMaterial
		Purchase []*InstanceLaunchParamsForPurchase
	}
)

func (c *Instance) publish(kind int, reviewer []string) {
	msg := &service.HubEmit{
		Msg: handle.NewWorkNotice("你有一条待办事项", &struct {
			Kind int `json:"kind"`
		}{
			Kind: kind,
		}),
	}
	utils.TryCatch(func() {
		for _, v := range reviewer {
			msg.ID = v
			service.HubMessage.EmitHandle(msg)
		}
	})
}

func (c *Instance) material(tx *gorm.DB, material []*InstanceLaunchParamsForMaterial, workID uint64) error {
	// 工单器材信息
	workMaterials := make([]*model2.WorkMaterial, 0)

	for _, v := range material {
		if v.ID <= 0 || v.SupplierID <= 0 || v.Number <= 0 {
			return errors.New("操作错误，器材参数不完全")
		}
		workMaterials = append(workMaterials, &model2.WorkMaterial{
			MaterialID: v.ID, MaterialSupplierID: v.SupplierID, MaterialNumber: v.Number,
		})
	}
	// 处理库存信息
	if len(workMaterials) > 0 {
		mManageMaterialSupplier := model.NewManageMaterialSupplier()

		now := time.Now()

		for _, v := range workMaterials {
			v.WorkID = workID

			if err := model2.UpdatesWhere(mManageMaterialSupplier.ManageMaterialSupplier, map[string]interface{}{
				"frozen_stock": gorm.Expr("frozen_stock + ?", v.MaterialNumber), "updated_at": now,
			}, []*model2.ModelWhere{
				model2.NewWhere("material_id", v.MaterialID),
				model2.NewWhere("supplier_id", v.MaterialSupplierID),
			}, tx); err != nil {
				return err
			}
		}
		mWorkMaterial := model.NewWorkMaterial()

		if err := model2.Creates(mWorkMaterial.WorkMaterial, &workMaterials, tx); err != nil {
			return err
		}
	}
	return nil
}

/// purchase 采购操作
func (c *Instance) purchase(tx *gorm.DB, purchase []*InstanceLaunchParamsForPurchase, workID uint64) error {
	//mManageMaterialPurchase := model.NewManageMaterialPurchase()

	//_purchase := make([]*model2.ManageMaterialPurchase, 0)

	for _, v := range purchase {
		mManageMaterialPurchase := model.NewManageMaterialPurchase()

		mManageMaterialPurchase.UID = c.UID
		mManageMaterialPurchase.OrderNo = lib.OrderNo()
		mManageMaterialPurchase.MaterialID = v.ID
		mManageMaterialPurchase.SupplierID = v.SupplierID
		mManageMaterialPurchase.Price = v.Price
		mManageMaterialPurchase.Number = v.Number
		mManageMaterialPurchase.Remark = "工单采购"

		err := model2.Create(mManageMaterialPurchase.ManageMaterialPurchase, tx)

		if err != nil {
			return err
		}
		mWorkPurchase := model.NewWorkPurchase()
		mWorkPurchase.WorkID = workID
		mWorkPurchase.MaterialPurchaseID = mManageMaterialPurchase.ID

		if err = model2.Create(mWorkPurchase.WorkPurchase, tx); err != nil {
			return err
		}
		//_purchase = append(_purchase, &model2.ManageMaterialPurchase{
		//	UID:        c.UID,
		//	OrderNo:    lib.OrderNo(),
		//	MaterialID: v.ID,
		//	SupplierID: v.SupplierID,
		//	Price:      v.Price,
		//	Number:     v.Number,
		//	Remark:     "工单采购",
		//})
	}
	//if len(_purchase) > 0 {
	//	if err := model2.Creates(mManageMaterialPurchase.ManageMaterialPurchase, _purchase, tx); err != nil {
	//		return err
	//	}
	//}
	return nil
}

// List 列表信息
func (c *Instance) List(equipmentCode, equipmentTitle string, kind, page, pageSize int) (*basic.PageDataResponse, error) {
	mWorkInstance := model.NewWorkInstance()

	where := make([]*model2.ModelWhere, 0)

	if equipmentCode != "" {
		where = append(where, model2.NewWhereLike("e.code", equipmentCode))
	}
	if equipmentTitle != "" {
		where = append(where, model2.NewWhereLike("e.title", equipmentTitle))
	}
	if kind > 0 {
		where = append(where, model2.NewWhere("w.kind", kind))
	}
	var count int64

	out, err := mWorkInstance.Instances(page, pageSize, &count, where...)

	if err != nil {
		return nil, err
	}
	list := make([]*InstanceInfo, 0)

	for _, v := range out {
		mWorkInstance.ID = v.ID

		list = append(list, &InstanceInfo{
			CommonIDString: basic.CommonIDString{ID: mWorkInstance.GetEncodeID()}, WorkInstanceInfo: v,
		})
	}
	return &basic.PageDataResponse{Data: list, Count: count}, nil
}

// Person 个人提交的审核信息
func (c *Instance) Person(equipmentCode, equipmentTitle string, kind, page, pageSize int) (*basic.PageDataResponse, error) {
	mWorkInstance := model.NewWorkInstance()

	where := make([]*model2.ModelWhere, 0)

	if equipmentCode != "" {
		where = append(where, model2.NewWhereLike("e.code", equipmentCode))
	}
	if equipmentTitle != "" {
		where = append(where, model2.NewWhereLike("e.title", equipmentTitle))
	}
	if kind > 0 {
		where = append(where, model2.NewWhere("w.kind", kind))
	}
	var count int64

	out, err := mWorkInstance.Persons(c.UID, page, pageSize, &count, where...)

	if err != nil {
		return nil, err
	}
	list := make([]*InstanceInfo, 0)

	for _, v := range out {
		mWorkInstance.ID = v.ID

		list = append(list, &InstanceInfo{
			CommonIDString: basic.CommonIDString{ID: mWorkInstance.GetEncodeID()}, WorkInstanceInfo: v,
		})
	}
	return &basic.PageDataResponse{Data: list, Count: count}, nil
}

// Workbench 工作台
func (c *Instance) Workbench(equipmentCode, equipmentTitle string, kind, page, pageSize int) (*basic.PageDataResponse, error) {
	// 查询用户角色信息
	mSysUserRole := model.NewSysUserRole()
	roleIDs := make([]string, 0)

	err := model2.Pluck(mSysUserRole.SysUserRole, "role_id", &roleIDs, model2.NewWhere("uid", c.UID))

	if err != nil {
		return nil, err
	}
	mWorkInstance := model.NewWorkInstance()

	where := make([]*model2.ModelWhere, 0)

	if equipmentCode != "" {
		where = append(where, model2.NewWhereLike("e.code", equipmentCode))
	}
	if equipmentTitle != "" {
		where = append(where, model2.NewWhereLike("e.title", equipmentTitle))
	}
	if kind > 0 {
		where = append(where, model2.NewWhere("w.kind", kind))
	}
	var count int64

	out := make([]*model.WorkInstanceInfo, 0)

	if out, err = mWorkInstance.Workbenchs(&model.WorkbenchCondition{
		UID: c.UIDToString(), RoleIDs: roleIDs,
	}, page, pageSize, &count, where...); err != nil {
		return nil, err
	}
	list := make([]*InstanceInfo, 0)

	for _, v := range out {
		mWorkInstance.ID = v.ID

		list = append(list, &InstanceInfo{
			CommonIDString: basic.CommonIDString{ID: mWorkInstance.GetEncodeID()}, WorkInstanceInfo: v,
		})
	}
	return &basic.PageDataResponse{Data: list, Count: count}, nil
}

// Detail 详细信息
func (c *Instance) Detail(id uint64) (*InstanceDetailInfo, error) {
	out := new(InstanceDetailInfo)

	var err error

	mWorkInstance := model.NewWorkInstance()
	// 基本信息
	if out.WorkInstanceInfo, err = mWorkInstance.Detail(id); err != nil {
		return nil, err
	}
	mWorkInstance.SetID(out.WorkInstanceInfo.ID)
	out.CommonIDString = basic.CommonIDString{
		ID: mWorkInstance.GetEncodeID(),
	}
	out.EquipmentID = (&model2.Model{ID: out.WorkInstanceInfo.EquipmentID}).GetEncodeID()
	out.ScheduleID = (&model2.Model{ID: out.WorkInstanceInfo.ScheduleID}).GetEncodeID()
	// 位置信息
	mWorkInstance.Distribution = out.WorkInstanceInfo.Distribution

	out.Distribution = mWorkInstance.GetDistributionAttribute()
	// 内修才有数据
	if out.WorkInstanceInfo.Kind == model2.WorkInstanceKindForWithin {
		// 器材信息
		materials := make([]*model.WorkMaterialInfo, 0)

		if materials, err = model.NewWorkMaterial().Materials(id); err != nil {
			return nil, err
		}
		// 采购信息
		purchases := make([]*model.WorkPurchaseInfo, 0)

		if purchases, err = model.NewWorkPurchase().Purchases(id); err != nil {
			return nil, err
		}
		out.Within = struct {
			Material []*model.WorkMaterialInfo `json:"material"`
			Purchase []*model.WorkPurchaseInfo `json:"purchase"`
		}{Material: materials, Purchase: purchases}
	} else if out.WorkInstanceInfo.Kind == model2.WorkInstanceKindForOutside {
		out.Outside = struct {
			SupplierName string `json:"supplier_name"`
		}{SupplierName: out.WorkInstanceInfo.SupplierName}
	}
	// 工单历史信息
	if out.History, err = model.NewWorkProgress().Progress(id); err != nil {
		return nil, err
	}
	return out, nil
}

// Launch 发起工单申请
func (c *Instance) Launch(params *InstanceLaunchParams) error {
	// 查询产品信息是否存在
	mManageEquipment := model.NewManageEquipment()

	var count int64

	err := model2.Count(mManageEquipment.ManageEquipment, &count, model2.NewWhere("id", params.EquipmentID))

	if err != nil {
		return err
	} else if count <= 0 {
		return errors.New("操作错误，该装备信息不存在或已被删除")
	}
	// 工单信息
	mWorkInstance := model.NewWorkInstance()
	mWorkInstance.UID = c.UID
	mWorkInstance.OrderNo = lib.OrderNo()
	mWorkInstance.Kind = model2.WorkInstanceKind(params.Kind)
	mWorkInstance.Title = params.Title
	mWorkInstance.EquipmentID = params.EquipmentID
	mWorkInstance.PlateNumber = params.PlateNumber
	mWorkInstance.Priority = model2.WorkInstancePriority(params.Priority)
	mWorkInstance.IsAssist = model2.WorkInstanceAssist(params.IsAssist)
	mWorkInstance.SetBreakdownAttribute(params.Breakdowns)
	mWorkInstance.SetDistributionAttribute(&model2.WorkInstanceDistribution{
		Name: params.Distribution.Name, Mobile: params.Distribution.Mobile, Address: params.Distribution.Address,
	})
	mWorkInstance.Remark = params.Remark

	if mWorkInstance.Kind == model2.WorkInstanceKindForOutside {
		if params.Supplier.SupplierID <= 0 {
			return errors.New("操作错误，承修单位不存在")
		}
		mWorkInstance.SupplierID = params.Supplier.SupplierID
	}
	// 查询工单进度流程
	// TODO：工单流程
	// 第一阶段：创建工单，默认创建时，直接完成
	mWorkSchedule := model.NewWorkSchedule()

	isExist := false

	if isExist, err = mWorkSchedule.FirstSchedule(model2.WorkScheduleKindForRepair); err != nil {
		return err
	} else if !isExist {
		return errors.New("操作错误，无工单流程信息，请先核实数据")
	}
	mWorkInstance.Schedule = mWorkSchedule.ID
	mWorkInstance.Status = model2.WorkInstanceStatusForComplete
	// 工单流程信息
	mWorkProgress := model.NewWorkProgress()
	mWorkProgress.ScheduleID = mWorkInstance.Schedule
	// 下一流程
	nextWorkSchedule := new(model.WorkScheduleInfo)

	if nextWorkSchedule, err = mWorkSchedule.NextSchedule(mWorkInstance.IsAssist == model2.WorkInstanceAssistForYes); err != nil {
		return err
	}
	if nextWorkSchedule != nil {
		mWorkInstance.Status = model2.WorkInstanceStatusForOngoing
		mWorkInstance.Schedule = nextWorkSchedule.ID
	}
	return orm.GetDB().Transaction(func(tx *gorm.DB) error {
		// 工单信息
		if err = model2.Create(mWorkInstance.WorkInstance, tx); err != nil {
			return err
		}
		// 工单历史
		mWorkProgress.UID = c.UID
		mWorkProgress.WorkID = mWorkInstance.ID
		mWorkProgress.Status = model2.WorkProgressStatusForCreate
		mWorkProgress.Remark = ""

		if err = model2.Create(mWorkProgress.WorkProgress, tx); err != nil {
			return err
		}
		// 内修模块信息
		if mWorkInstance.Kind == model2.WorkInstanceKindForWithin && params.IsAssist <= 0 {
			// 物料信息
			if err = c.material(tx, params.Material, mWorkInstance.ID); err != nil {
				return err
			}
			// 采购信息
			if err = c.purchase(tx, params.Purchase, mWorkInstance.ID); err != nil {
				return err
			}
		}
		if nextWorkSchedule != nil {
			// 推送通知
			go c.publish(params.Kind, nextWorkSchedule.Reviewer)
		}
		return nil
	})
}

// Examine 审核操作
func (c *Instance) Examine(id uint64, status int, remark string, isAssist int, params *InstanceExamineParams) error {
	_status := model2.WorkProgressStatus(status)

	if _status != model2.WorkProgressStatusForAgree && _status != model2.WorkProgressStatusForRefuse {
		return errors.New("操作错误，审核状态异常")
	}
	mWorkInstance := model.NewWorkInstance()
	mWorkInstance.ID = id

	isExist, err := model2.FirstField(mWorkInstance.WorkInstance, []string{"id", "kind", "schedule", "status"})

	if err != nil {
		return err
	} else if !isExist {
		return errors.New("操作错误，工单信息不存在")
	} else if mWorkInstance.Status == model2.WorkInstanceStatusForComplete {
		return errors.New("操作错误，当前工单信息已结束")
	}
	// 查询当前工单所在流程的信息
	mWorkSchedule := model.NewWorkSchedule()
	mWorkSchedule.ID = mWorkInstance.Schedule

	if isExist, err = model2.First(mWorkSchedule.WorkSchedule); err != nil {
		return err
	} else if !isExist {
		return errors.New("操作错误，未知的工单流程")
	}
	// 验证审核权限
	isAuth := false

	if isAuth, err = mWorkSchedule.ValidateAuth(c.UID); err != nil {
		return err
	} else if !isAuth {
		return errors.New("操作错误，无权限审批")
	}
	return orm.GetDB().Transaction(func(tx *gorm.DB) error {
		// 工单流程记录
		mWorkProgress := model.NewWorkProgress()
		mWorkProgress.UID = c.UID
		mWorkProgress.WorkID = id
		mWorkProgress.ScheduleID = mWorkSchedule.ID
		mWorkProgress.Status = _status
		mWorkProgress.Remark = remark

		if err = model2.Create(mWorkProgress.WorkProgress, tx); err != nil {
			return err
		}
		workUpdates := map[string]interface{}{
			"status": model2.WorkInstanceStatusForComplete, "updated_at": time.Now(),
		}
		// 下一流程
		nextScheduleInfo := new(model.WorkScheduleInfo)

		// 拒绝审批，工单直接结束
		if _status == model2.WorkProgressStatusForRefuse {
			goto FINISH
		}
		// 下一流程信息
		if nextScheduleInfo, err = mWorkSchedule.NextSchedule(model2.WorkInstanceAssist(isAssist) == model2.WorkInstanceAssistForYes); err != nil {
			return err
		}
		// 无下一流程，工单直接完成
		if nextScheduleInfo == nil || nextScheduleInfo.ID <= 0 {
			goto FINISH
		}
		workUpdates["status"] = model2.WorkInstanceStatusForOngoing
		workUpdates["schedule"] = nextScheduleInfo.ID

		if nextScheduleInfo.IsNextStage {
			workUpdates["is_assist"] = isAssist
		}
	FINISH:
		if err = model2.Updates(mWorkInstance.WorkInstance, workUpdates, tx); err != nil {
			return err
		}
		// 完成，创建维修工单
		if workUpdates["status"] == model2.WorkInstanceStatusForComplete {
			// 创建维修工单
			mWorkRepair := model.NewWorkRepair()
			mWorkRepair.OrderNo = lib.OrderNo()
			mWorkRepair.WorkID = mWorkInstance.ID
			// 默认进行中
			mWorkRepair.Status = model2.WorkRepairStatusForOngoing

			if err = model2.Create(mWorkRepair.WorkRepair, tx); err != nil {
				return err
			}
		}
		// 处理器材信息
		if mWorkInstance.Kind == model2.WorkInstanceKindForWithin && isAssist <= 0 {
			// 物料信息
			if err = c.material(tx, params.Material, id); err != nil {
				return err
			}
			// 采购信息
			if err = c.purchase(tx, params.Purchase, id); err != nil {
				return err
			}
		}
		// 推送通知
		if nextScheduleInfo != nil {
			go c.publish(int(mWorkInstance.Kind), nextScheduleInfo.Reviewer)
		}
		return nil
	})
}

// Delete 删除操作
func (c *Instance) Delete(id uint64) error {
	mWorkInstance := model.NewWorkInstance()
	mWorkInstance.ID = id
	return model2.Delete(mWorkInstance.WorkInstance)
}

func NewInstance() InstanceHandle {
	return func(session *service.Session) *Instance {
		return &Instance{session}
	}
}