package logic

import (
	"context"
	"errors"
	"time"

	"bj_power_mes/ent"
	"bj_power_mes/ent/processstep"
	"bj_power_mes/ent/stepcriterion"
	"bj_power_mes/ent/torquerecord"
	"bj_power_mes/ent/workpieceprocess"
)

type TorqueReq struct {
	Sn          string    `json:"sn"`
	WorkOrder   string    `json:"workOrder"`
	WorkOrderNo string    `json:"workOrderNo"`
	StationNo   string    `json:"stationNo"`
	ScrewNo     string    `json:"screwNo"`
	Strain      float64   `json:"strain"` // 扭矩
	Torque      float64   `json:"torque"`
	Angle       float64   `json:"angle"`
	Result      string    `json:"result"`
	Operator    string    `json:"operator"`
	Time        time.Time `json:"time"`
}

// ReportTorque 接收拧紧数据（工位终端/内部接口上报），入库并做扭矩 RANGE 判定写 step_data
func (s *Service) ReportTorque(ctx context.Context, req TorqueReq, operator string) error {
	if req.Sn == "" {
		return errors.New("sn 不能为空")
	}
	if req.Strain == 0 {
		req.Strain = req.Torque
	}
	result := req.Result
	if result == "" {
		result = "OK"
	}
	workOrderNo := req.WorkOrder
	if workOrderNo == "" {
		workOrderNo = req.WorkOrderNo
	}
	if req.Time.IsZero() {
		req.Time = time.Now()
	}
	_, err := s.ctx.EntClient.TorqueRecord.Create().
		SetWorkOrderNo(workOrderNo).SetSn(req.Sn).SetScrewNo(req.ScrewNo).
		SetStrain(req.Strain).SetTorque(req.Strain).SetAngle(req.Angle).
		SetResult(result).SetOperator(req.Operator).SetStationNo(req.StationNo).
		SetTime(req.Time).Save(ctx)
	if err != nil {
		return err
	}
	s.ctx.EventLog.Write(ctx, "torque.report", workOrderNo, operator, "torque_record", req.Sn, "接收拧紧数据上报", map[string]any{"strain": req.Strain, "angle": req.Angle, "result": result})
	s.evaluateTorqueCriterion(ctx, req.Sn, req.StationNo, req.Strain, req.Angle, operator)
	return nil
}

// evaluateTorqueCriterion 依据 step_criterion RANGE 自动判定 OK/NG 写入 step_data
func (s *Service) evaluateTorqueCriterion(ctx context.Context, sn, stationNo string, strain, angle float64, operator string) {
	q := s.ctx.EntClient.StepCriterion.Query().Where(stepcriterion.Name("扭矩"))
	crits, _ := q.All(ctx)
	for _, c := range crits {
		if c.Logic != "RANGE" {
			continue
		}
		ok := true
		if c.Min != nil && strain < *c.Min {
			ok = false
		}
		if c.Max != nil && strain > *c.Max {
			ok = false
		}
		_, _ = s.ctx.EntClient.StepData.Create().
			SetSn(sn).SetStepId(c.StepId).SetCriterionId(c.ID).
			SetCriterionName(c.Name).SetCriterionLogic(c.Logic).
			SetValue(strain).SetIsOK(ok).SetOperator(operator).Save(ctx)
	}
}

// ListTorqueRecords 查询拧紧数据
func (s *Service) ListTorqueRecords(ctx context.Context, sn, workOrderNo string, from, to time.Time) ([]*ent.TorqueRecord, error) {
	q := s.ctx.EntClient.TorqueRecord.Query()
	if sn != "" {
		q = q.Where(torquerecord.Sn(sn))
	}
	if workOrderNo != "" {
		q = q.Where(torquerecord.WorkOrderNo(workOrderNo))
	}
	return q.Order(ent.Desc(torquerecord.FieldTime)).Limit(500).All(ctx)
}

// 计算一块工件某工序的扭矩步骤是否已报
func (s *Service) hasWorkpieceProcess(ctx context.Context, sn string, processCode int) bool {
	cnt, _ := s.ctx.EntClient.WorkpieceProcess.Query().
		Where(workpieceprocess.Sn(sn), workpieceprocess.ProcessCode(processCode)).Count(ctx)
	return cnt > 0
}

// ProcessStepTemplate 下发给前端渲染的参数采集模板
type ProcessStepTemplate struct {
	ID          int           `json:"id"`
	ProcessCode int           `json:"processCode"`
	Seq         int           `json:"seq"`
	Name        string        `json:"name"`
	CollectType string        `json:"collectType"` // AUTO(拧紧枪自动)/MANUAL(手填)/NONE
	IsTorque    bool          `json:"isTorque"`
	Remark      string        `json:"remark"`
	Criteria    []CriterionVO `json:"criteria"`
}

// CriterionVO 考核标准视图
type CriterionVO struct {
	ID     int      `json:"id"`
	Name   string   `json:"name"`
	Unit   string   `json:"unit"`
	Logic  string   `json:"logic"` // GE/LE/GT/LT/RANGE/EQUAL/NONE
	Target float64  `json:"target"`
	Min    *float64 `json:"min"`
	Max    *float64 `json:"max"`
}

// ListProcessSteps 查询某工序的步骤模板（含考核标准），供手动报工页动态渲染参数输入
func (s *Service) ListProcessSteps(ctx context.Context, processCode int) ([]*ProcessStepTemplate, error) {
	steps, err := s.ctx.EntClient.ProcessStep.Query().
		Where(processstep.ProcessCode(processCode)).
		Order(ent.Asc(processstep.FieldSeq)).All(ctx)
	if err != nil {
		return nil, err
	}
	out := make([]*ProcessStepTemplate, 0, len(steps))
	for _, st := range steps {
		t := &ProcessStepTemplate{
			ID: st.ID, ProcessCode: st.ProcessCode, Seq: st.Seq,
			Name: st.Name, CollectType: st.CollectType, IsTorque: st.IsTorque,
			Remark: st.Remark, Criteria: []CriterionVO{},
		}
		crits, _ := s.ctx.EntClient.StepCriterion.Query().
			Where(stepcriterion.StepId(st.ID)).All(ctx)
		for _, c := range crits {
			t.Criteria = append(t.Criteria, CriterionVO{
				ID: c.ID, Name: c.Name, Unit: c.Unit, Logic: c.Logic,
				Target: c.Target, Min: c.Min, Max: c.Max,
			})
		}
		out = append(out, t)
	}
	return out, nil
}

// StepItemReq 一次保存的一个步骤（含其考核标准）
type StepItemReq struct {
	ID          int           `json:"id"`
	ProcessCode int           `json:"processCode"`
	Seq         int           `json:"seq"`
	Name        string        `json:"name"`
	CollectType string        `json:"collectType"`
	IsTorque    bool          `json:"isTorque"`
	Remark      string        `json:"remark"`
	Criteria    []CriterionVO `json:"criteria"`
}

// SaveProcessSteps 覆盖式保存某工序的步骤模板及考核标准（供"工艺参数"维护页调用）
func (s *Service) SaveProcessSteps(ctx context.Context, steps []StepItemReq, operator string) error {
	for _, st := range steps {
		if st.ProcessCode <= 0 || st.Name == "" {
			continue
		}
		var stepID int
		if st.ID > 0 {
			upd := s.ctx.EntClient.ProcessStep.UpdateOneID(st.ID).
				SetSeq(st.Seq).SetName(st.Name).SetCollectType(st.CollectType).
				SetIsTorque(st.IsTorque).SetRemark(st.Remark)
			_, err := upd.Save(ctx)
			if err != nil {
				return err
			}
			stepID = st.ID
		} else {
			rec, err := s.ctx.EntClient.ProcessStep.Create().
				SetProcessCode(st.ProcessCode).SetSeq(st.Seq).SetName(st.Name).
				SetCollectType(st.CollectType).SetIsTorque(st.IsTorque).SetRemark(st.Remark).Save(ctx)
			if err != nil {
				return err
			}
			stepID = rec.ID
		}
		// 覆盖式重建该步骤的考核标准
		_, _ = s.ctx.EntClient.StepCriterion.Delete().Where(stepcriterion.StepId(stepID)).Exec(ctx)
		for _, c := range st.Criteria {
			if c.Name == "" || c.Logic == "" || c.Logic == "NONE" {
				continue
			}
			b := s.ctx.EntClient.StepCriterion.Create().
				SetStepId(stepID).SetName(c.Name).SetUnit(c.Unit).SetLogic(c.Logic).
				SetTarget(c.Target)
			if c.Min != nil {
				b = b.SetMin(*c.Min)
			}
			if c.Max != nil {
				b = b.SetMax(*c.Max)
			}
			if err := b.Exec(ctx); err != nil {
				return err
			}
		}
	}
	s.ctx.EventLog.Write(ctx, "process.steps.save", "", operator, "process_step", "", "维护工艺参数", map[string]any{"count": len(steps)})
	return nil
}

// AllProcessSteps 查询全部工序的步骤模板（含 12 道工序），供维护页按工序分组展示
func (s *Service) AllProcessSteps(ctx context.Context, processCode int) ([]*ProcessStepTemplate, error) {
	if processCode > 0 {
		return s.ListProcessSteps(ctx, processCode)
	}
	out := []*ProcessStepTemplate{}
	for code := 1; code <= 12; code++ {
		sub, err := s.ListProcessSteps(ctx, code)
		if err != nil {
			return nil, err
		}
		out = append(out, sub...)
	}
	return out, nil
}