package controllers

import (
	"encoding/json"
	"io"
	"log"
	"math"
	"regexp"
	"strconv"
	"strings"
	"time"

	"server/models"
	"server/pkg/jwtutil"

	"github.com/beego/beego/v2/client/orm"
	beego "github.com/beego/beego/v2/server/web"
)

// BackendOaCompensationController OA 薪酬管理接口。
// 数据按租户隔离；工资金额使用薪资单快照，避免组织资料或历史方案变动影响已生成工资。
type BackendOaCompensationController struct {
	beego.Controller
}

func (c *BackendOaCompensationController) compensationClaims() (*jwtutil.Claims, error) {
	auth := c.Ctx.Request.Header.Get("Authorization")
	parts := strings.SplitN(auth, " ", 2)
	if auth == "" || len(parts) != 2 || parts[0] != "Bearer" {
		return nil, orm.ErrNoRows
	}
	claims, err := jwtutil.ParseToken(parts[1])
	if err != nil || claims.UserType != "backend" {
		return nil, orm.ErrNoRows
	}
	return claims, nil
}

func (c *BackendOaCompensationController) compensationError(httpStatus int, msg string) {
	c.Ctx.Output.SetStatus(httpStatus)
	c.Data["json"] = map[string]interface{}{"code": httpStatus, "msg": msg}
	_ = c.ServeJSON()
}

func (c *BackendOaCompensationController) compensationOK(data interface{}) {
	c.Data["json"] = map[string]interface{}{"code": 200, "msg": "success", "data": data}
	_ = c.ServeJSON()
}

func compensationID(raw string) (uint64, bool) {
	id, err := strconv.ParseUint(raw, 10, 64)
	return id, err == nil && id > 0
}

func compensationMoney(v float64) float64 {
	return math.Round(v*100) / 100
}

func compensationString(v *string) string {
	if v == nil {
		return ""
	}
	return *v
}

var compensationMonthPattern = regexp.MustCompile(`^\d{4}-(0[1-9]|1[0-2])$`)

type compensationItemPayload struct {
	ID        uint64  `json:"id"`
	ItemName  string  `json:"item_name"`
	ItemType  int8    `json:"item_type"` // 1 增项；2 扣项
	Amount    float64 `json:"amount"`
	Remark    string  `json:"remark"`
	SortOrder int     `json:"sort_order"`
}

type compensationSchemePayload struct {
	EmployeeID             uint64  `json:"employee_id"`
	SchemeName             string  `json:"scheme_name"`
	EffectiveDate          string  `json:"effective_date"`
	ExpiryDate             string  `json:"expiry_date"`
	BaseSalary             float64 `json:"base_salary"`
	PostAllowance          float64 `json:"post_allowance"`
	PerformanceSalary      float64 `json:"performance_salary"`
	TransportAllowance     float64 `json:"transport_allowance"`
	MealAllowance          float64 `json:"meal_allowance"`
	CommunicationAllowance float64 `json:"communication_allowance"`
	SocialInsuranceBase    float64 `json:"social_insurance_base"`
	HousingFundBase        float64 `json:"housing_fund_base"`
	SocialInsuranceRate    float64 `json:"social_insurance_rate"`
	HousingFundRate        float64 `json:"housing_fund_rate"`
	Status                 int8    `json:"status"`
	Remark                 string  `json:"remark"`
}

type compensationPayrollPayload struct {
	EmployeeID             uint64                    `json:"employee_id"`
	SchemeID               *uint64                   `json:"scheme_id"`
	PayrollMonth           string                    `json:"payroll_month"`
	BaseSalary             float64                   `json:"base_salary"`
	PostAllowance          float64                   `json:"post_allowance"`
	PerformanceSalary      float64                   `json:"performance_salary"`
	TransportAllowance     float64                   `json:"transport_allowance"`
	MealAllowance          float64                   `json:"meal_allowance"`
	CommunicationAllowance float64                   `json:"communication_allowance"`
	OvertimePay            float64                   `json:"overtime_pay"`
	Bonus                  float64                   `json:"bonus"`
	OtherAddition          float64                   `json:"other_addition"`
	LeaveDeduction         float64                   `json:"leave_deduction"`
	LateDeduction          float64                   `json:"late_deduction"`
	OtherDeduction         float64                   `json:"other_deduction"`
	SocialInsurance        float64                   `json:"social_insurance"`
	HousingFund            float64                   `json:"housing_fund"`
	PersonalIncomeTax      float64                   `json:"personal_income_tax"`
	Remark                 string                    `json:"remark"`
	Items                  []compensationItemPayload `json:"items"`
}

func (c *BackendOaCompensationController) parseBody(target interface{}) bool {
	raw, err := io.ReadAll(c.Ctx.Request.Body)
	if err != nil || json.Unmarshal(raw, target) != nil {
		c.compensationError(400, "参数格式错误")
		return false
	}
	return true
}

func validCompensationDate(s string) (time.Time, bool) {
	s = strings.TrimSpace(s)
	value, err := time.ParseInLocation("2006-01-02", s, time.Local)
	return value, err == nil
}

func validateNonNegative(values ...float64) bool {
	for _, value := range values {
		if value < 0 || math.IsNaN(value) || math.IsInf(value, 0) {
			return false
		}
	}
	return true
}

func (c *BackendOaCompensationController) employee(tenantID uint64, employeeID uint64) (*models.BackendEmployee, bool) {
	var employee models.BackendEmployee
	err := models.Orm.QueryTable(new(models.BackendEmployee)).
		Filter("id", employeeID).
		Filter("tid", tenantID).
		Filter("delete_time__isnull", true).
		One(&employee)
	if err != nil {
		return nil, false
	}
	return &employee, true
}

func payrollMap(row models.BackendOaPayroll) map[string]interface{} {
	return map[string]interface{}{
		"id": row.ID, "employee_id": row.EmployeeID, "scheme_id": row.SchemeID,
		"payroll_month": row.PayrollMonth, "employee_name": row.EmployeeName,
		"department": row.Department, "position": row.Position,
		"base_salary": row.BaseSalary, "post_allowance": row.PostAllowance,
		"performance_salary": row.PerformanceSalary, "transport_allowance": row.TransportAllowance,
		"meal_allowance": row.MealAllowance, "communication_allowance": row.CommunicationAllowance,
		"overtime_pay": row.OvertimePay, "bonus": row.Bonus, "other_addition": row.OtherAddition,
		"leave_deduction": row.LeaveDeduction, "late_deduction": row.LateDeduction,
		"other_deduction": row.OtherDeduction, "social_insurance": row.SocialInsurance,
		"housing_fund": row.HousingFund, "personal_income_tax": row.PersonalIncomeTax,
		"gross_salary": row.GrossSalary, "total_deduction": row.TotalDeduction,
		"net_salary": row.NetSalary, "status": row.Status, "confirmed_at": row.ConfirmedAt,
		"paid_at": row.PaidAt, "remark": row.Remark, "create_time": row.CreateTime,
	}
}

func (c *BackendOaCompensationController) fillPayroll(row *models.BackendOaPayroll, payload compensationPayrollPayload, employee *models.BackendEmployee) {
	row.SchemeID = payload.SchemeID
	row.BaseSalary = compensationMoney(payload.BaseSalary)
	row.PostAllowance = compensationMoney(payload.PostAllowance)
	row.PerformanceSalary = compensationMoney(payload.PerformanceSalary)
	row.TransportAllowance = compensationMoney(payload.TransportAllowance)
	row.MealAllowance = compensationMoney(payload.MealAllowance)
	row.CommunicationAllowance = compensationMoney(payload.CommunicationAllowance)
	row.OvertimePay = compensationMoney(payload.OvertimePay)
	row.Bonus = compensationMoney(payload.Bonus)
	row.OtherAddition = compensationMoney(payload.OtherAddition)
	row.LeaveDeduction = compensationMoney(payload.LeaveDeduction)
	row.LateDeduction = compensationMoney(payload.LateDeduction)
	row.OtherDeduction = compensationMoney(payload.OtherDeduction)
	row.SocialInsurance = compensationMoney(payload.SocialInsurance)
	row.HousingFund = compensationMoney(payload.HousingFund)
	row.PersonalIncomeTax = compensationMoney(payload.PersonalIncomeTax)
	row.Remark = strings.TrimSpace(payload.Remark)
	row.EmployeeName = employee.Name
	row.Department = compensationString(employee.Department)
	row.Position = compensationString(employee.Position)

	customAdd, customDeduct := 0.0, 0.0
	for _, item := range payload.Items {
		if item.ItemType == 1 {
			customAdd += item.Amount
		} else if item.ItemType == 2 {
			customDeduct += item.Amount
		}
	}
	row.GrossSalary = compensationMoney(row.BaseSalary + row.PostAllowance + row.PerformanceSalary +
		row.TransportAllowance + row.MealAllowance + row.CommunicationAllowance + row.OvertimePay +
		row.Bonus + row.OtherAddition + customAdd)
	row.TotalDeduction = compensationMoney(row.LeaveDeduction + row.LateDeduction + row.OtherDeduction +
		row.SocialInsurance + row.HousingFund + row.PersonalIncomeTax + customDeduct)
	row.NetSalary = compensationMoney(row.GrossSalary - row.TotalDeduction)
}

func (c *BackendOaCompensationController) saveItems(tenantID, payrollID uint64, payloads []compensationItemPayload) error {
	_, err := models.Orm.QueryTable(new(models.BackendOaPayrollItem)).
		Filter("tid", tenantID).Filter("payroll_id", payrollID).Filter("is_deleted", 0).
		Update(orm.Params{"is_deleted": int8(1), "delete_time": time.Now()})
	if err != nil {
		return err
	}
	for index, payload := range payloads {
		name := strings.TrimSpace(payload.ItemName)
		if name == "" || (payload.ItemType != 1 && payload.ItemType != 2) || !validateNonNegative(payload.Amount) {
			return orm.ErrArgs
		}
		item := &models.BackendOaPayrollItem{
			Tid: tenantID, PayrollID: payrollID, ItemName: name, ItemType: payload.ItemType,
			Amount: compensationMoney(payload.Amount), Remark: strings.TrimSpace(payload.Remark),
			SortOrder: index, IsDeleted: 0,
		}
		if _, err = models.Orm.Insert(item); err != nil {
			return err
		}
	}
	return nil
}

// Employees GET /backend/oa/compensation/employees
func (c *BackendOaCompensationController) Employees() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	keyword := strings.TrimSpace(c.GetString("keyword"))
	qs := models.Orm.QueryTable(new(models.BackendEmployee)).Filter("tid", claims.TenantId).Filter("delete_time__isnull", true)
	if keyword != "" {
		qs = qs.Filter("name__icontains", keyword)
	}
	var employees []models.BackendEmployee
	_, err = qs.OrderBy("name", "id").All(&employees)
	if err != nil && err != orm.ErrNoRows {
		c.compensationError(500, "员工查询失败")
		return
	}
	list := make([]map[string]interface{}, 0, len(employees))
	for _, employee := range employees {
		list = append(list, map[string]interface{}{
			"id": employee.ID, "name": employee.Name, "account": employee.Account,
			"department": compensationString(employee.Department), "position": compensationString(employee.Position),
		})
	}
	c.compensationOK(list)
}

// SchemeList GET /backend/oa/compensation/schemes
func (c *BackendOaCompensationController) SchemeList() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	employeeID, _ := c.GetInt64("employee_id", 0)
	qs := models.Orm.QueryTable(new(models.BackendOaCompensationScheme)).Filter("tid", claims.TenantId).Filter("is_deleted", 0)
	if employeeID > 0 {
		qs = qs.Filter("employee_id", employeeID)
	}
	var rows []models.BackendOaCompensationScheme
	_, err = qs.OrderBy("-effective_date", "-id").All(&rows)
	if err != nil && err != orm.ErrNoRows {
		c.compensationError(500, "查询薪酬方案失败")
		return
	}
	if rows == nil {
		rows = []models.BackendOaCompensationScheme{}
	}
	c.compensationOK(rows)
}

// CreateScheme POST /backend/oa/compensation/schemes
func (c *BackendOaCompensationController) CreateScheme() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	var payload compensationSchemePayload
	if !c.parseBody(&payload) {
		return
	}
	date, ok := validCompensationDate(payload.EffectiveDate)
	if !ok || payload.EmployeeID == 0 || strings.TrimSpace(payload.SchemeName) == "" {
		c.compensationError(400, "请填写员工、方案名称和生效日期")
		return
	}
	employee, ok := c.employee(uint64(claims.TenantId), payload.EmployeeID)
	if !ok || employee == nil {
		c.compensationError(400, "员工不存在或不属于当前租户")
		return
	}
	if !validateNonNegative(payload.BaseSalary, payload.PostAllowance, payload.PerformanceSalary, payload.TransportAllowance,
		payload.MealAllowance, payload.CommunicationAllowance, payload.SocialInsuranceBase, payload.HousingFundBase,
		payload.SocialInsuranceRate, payload.HousingFundRate) || payload.SocialInsuranceRate > 1 || payload.HousingFundRate > 1 {
		c.compensationError(400, "薪酬金额或比例无效")
		return
	}
	var expiry *time.Time
	if strings.TrimSpace(payload.ExpiryDate) != "" {
		value, valid := validCompensationDate(payload.ExpiryDate)
		if !valid || value.Before(date) {
			c.compensationError(400, "失效日期无效")
			return
		}
		expiry = &value
	}
	status := payload.Status
	if status != 0 {
		status = 1
	}
	row := &models.BackendOaCompensationScheme{
		Tid: uint64(claims.TenantId), EmployeeID: payload.EmployeeID, SchemeName: strings.TrimSpace(payload.SchemeName),
		EffectiveDate: date, ExpiryDate: expiry, BaseSalary: compensationMoney(payload.BaseSalary),
		PostAllowance: compensationMoney(payload.PostAllowance), PerformanceSalary: compensationMoney(payload.PerformanceSalary),
		TransportAllowance: compensationMoney(payload.TransportAllowance), MealAllowance: compensationMoney(payload.MealAllowance),
		CommunicationAllowance: compensationMoney(payload.CommunicationAllowance), SocialInsuranceBase: compensationMoney(payload.SocialInsuranceBase),
		HousingFundBase: compensationMoney(payload.HousingFundBase), SocialInsuranceRate: payload.SocialInsuranceRate,
		HousingFundRate: payload.HousingFundRate, Status: status, Remark: strings.TrimSpace(payload.Remark),
	}
	if _, err = models.Orm.Insert(row); err != nil {
		c.compensationError(500, "保存薪酬方案失败")
		return
	}
	c.compensationOK(row)
}

// UpdateScheme POST /backend/oa/compensation/schemes/:id
func (c *BackendOaCompensationController) UpdateScheme() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	id, valid := compensationID(c.Ctx.Input.Param(":id"))
	if !valid {
		c.compensationError(400, "无效方案ID")
		return
	}
	var payload compensationSchemePayload
	if !c.parseBody(&payload) {
		return
	}
	var row models.BackendOaCompensationScheme
	if models.Orm.QueryTable(new(models.BackendOaCompensationScheme)).Filter("id", id).Filter("tid", claims.TenantId).Filter("is_deleted", 0).One(&row) != nil {
		c.compensationError(404, "薪酬方案不存在")
		return
	}
	// 保持更新逻辑与创建一致，先软删除旧值再由统一创建验证的字段约束赋值。
	date, ok := validCompensationDate(payload.EffectiveDate)
	if !ok || payload.EmployeeID == 0 || strings.TrimSpace(payload.SchemeName) == "" || !validateNonNegative(payload.BaseSalary, payload.PostAllowance, payload.PerformanceSalary, payload.TransportAllowance, payload.MealAllowance, payload.CommunicationAllowance, payload.SocialInsuranceBase, payload.HousingFundBase, payload.SocialInsuranceRate, payload.HousingFundRate) || payload.SocialInsuranceRate > 1 || payload.HousingFundRate > 1 {
		c.compensationError(400, "方案内容无效")
		return
	}
	if _, ok = c.employee(uint64(claims.TenantId), payload.EmployeeID); !ok {
		c.compensationError(400, "员工不存在或不属于当前租户")
		return
	}
	var expiry *time.Time
	if strings.TrimSpace(payload.ExpiryDate) != "" {
		value, dateOK := validCompensationDate(payload.ExpiryDate)
		if !dateOK || value.Before(date) {
			c.compensationError(400, "失效日期无效")
			return
		}
		expiry = &value
	}
	now := time.Now()
	row.EmployeeID, row.SchemeName, row.EffectiveDate, row.ExpiryDate = payload.EmployeeID, strings.TrimSpace(payload.SchemeName), date, expiry
	row.BaseSalary, row.PostAllowance, row.PerformanceSalary = compensationMoney(payload.BaseSalary), compensationMoney(payload.PostAllowance), compensationMoney(payload.PerformanceSalary)
	row.TransportAllowance, row.MealAllowance, row.CommunicationAllowance = compensationMoney(payload.TransportAllowance), compensationMoney(payload.MealAllowance), compensationMoney(payload.CommunicationAllowance)
	row.SocialInsuranceBase, row.HousingFundBase, row.SocialInsuranceRate, row.HousingFundRate = compensationMoney(payload.SocialInsuranceBase), compensationMoney(payload.HousingFundBase), payload.SocialInsuranceRate, payload.HousingFundRate
	row.Status, row.Remark, row.UpdateTime = payload.Status, strings.TrimSpace(payload.Remark), &now
	if row.Status != 0 {
		row.Status = 1
	}
	if _, err = models.Orm.Update(&row); err != nil {
		c.compensationError(500, "更新薪酬方案失败")
		return
	}
	c.compensationOK(row)
}

// DeleteScheme DELETE /backend/oa/compensation/schemes/:id
func (c *BackendOaCompensationController) DeleteScheme() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	id, valid := compensationID(c.Ctx.Input.Param(":id"))
	if !valid {
		c.compensationError(400, "无效方案ID")
		return
	}
	now := time.Now()
	count, err := models.Orm.QueryTable(new(models.BackendOaCompensationScheme)).Filter("id", id).Filter("tid", claims.TenantId).Filter("is_deleted", 0).Update(orm.Params{"is_deleted": int8(1), "delete_time": now, "update_time": now})
	if err != nil || count == 0 {
		c.compensationError(404, "薪酬方案不存在")
		return
	}
	c.compensationOK(nil)
}

// List GET /backend/oa/compensation/payrolls
func (c *BackendOaCompensationController) List() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	page, _ := c.GetInt("page", 1)
	pageSize, _ := c.GetInt("pageSize", 20)
	if page < 1 {
		page = 1
	}
	if pageSize < 1 || pageSize > 200 {
		pageSize = 20
	}
	month, keyword := strings.TrimSpace(c.GetString("payroll_month")), strings.TrimSpace(c.GetString("keyword"))
	status := strings.TrimSpace(c.GetString("status"))
	qs := models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("tid", claims.TenantId).Filter("is_deleted", 0)
	if compensationMonthPattern.MatchString(month) {
		qs = qs.Filter("payroll_month", month)
	}
	if keyword != "" {
		qs = qs.Filter("employee_name__icontains", keyword)
	}
	if status == "0" || status == "1" || status == "2" || status == "3" {
		value, _ := strconv.Atoi(status)
		qs = qs.Filter("status", int8(value))
	}
	total, _ := qs.Count()
	var rows []models.BackendOaPayroll
	_, err = qs.OrderBy("-payroll_month", "employee_name", "-id").Limit(pageSize).Offset((page - 1) * pageSize).All(&rows)
	if err != nil && err != orm.ErrNoRows {
		log.Printf("薪资单查询失败: tid=%d month=%q keyword=%q status=%q err=%v", claims.TenantId, month, keyword, status, err)
		c.compensationError(500, "查询薪资单失败，请检查薪酬管理数据表是否已创建")
		return
	}
	list := make([]map[string]interface{}, 0, len(rows))
	for _, row := range rows {
		list = append(list, payrollMap(row))
	}
	c.compensationOK(map[string]interface{}{"list": list, "total": total})
}

// Detail GET /backend/oa/compensation/payrolls/:id
func (c *BackendOaCompensationController) Detail() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	id, valid := compensationID(c.Ctx.Input.Param(":id"))
	if !valid {
		c.compensationError(400, "无效薪资单ID")
		return
	}
	var row models.BackendOaPayroll
	if models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("id", id).Filter("tid", claims.TenantId).Filter("is_deleted", 0).One(&row) != nil {
		c.compensationError(404, "薪资单不存在")
		return
	}
	var items []models.BackendOaPayrollItem
	_, _ = models.Orm.QueryTable(new(models.BackendOaPayrollItem)).Filter("tid", claims.TenantId).Filter("payroll_id", id).Filter("is_deleted", 0).OrderBy("sort_order", "id").All(&items)
	data := payrollMap(row)
	data["items"] = items
	c.compensationOK(data)
}

// Create POST /backend/oa/compensation/payrolls
func (c *BackendOaCompensationController) Create() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	var payload compensationPayrollPayload
	if !c.parseBody(&payload) {
		return
	}
	if payload.EmployeeID == 0 || !compensationMonthPattern.MatchString(strings.TrimSpace(payload.PayrollMonth)) || !validateNonNegative(payload.BaseSalary, payload.PostAllowance, payload.PerformanceSalary, payload.TransportAllowance, payload.MealAllowance, payload.CommunicationAllowance, payload.OvertimePay, payload.Bonus, payload.OtherAddition, payload.LeaveDeduction, payload.LateDeduction, payload.OtherDeduction, payload.SocialInsurance, payload.HousingFund, payload.PersonalIncomeTax) {
		c.compensationError(400, "员工、工资月份或金额无效")
		return
	}
	employee, ok := c.employee(uint64(claims.TenantId), payload.EmployeeID)
	if !ok {
		c.compensationError(400, "员工不存在或不属于当前租户")
		return
	}
	exists := models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("tid", claims.TenantId).Filter("employee_id", payload.EmployeeID).Filter("payroll_month", payload.PayrollMonth).Filter("is_deleted", 0).Exist()
	if exists {
		c.compensationError(409, "该员工本月薪资单已存在")
		return
	}
	row := &models.BackendOaPayroll{Tid: uint64(claims.TenantId), EmployeeID: payload.EmployeeID, PayrollMonth: strings.TrimSpace(payload.PayrollMonth), Status: 0}
	c.fillPayroll(row, payload, employee)
	if _, err = models.Orm.Insert(row); err != nil {
		c.compensationError(500, "创建薪资单失败")
		return
	}
	if err = c.saveItems(uint64(claims.TenantId), row.ID, payload.Items); err != nil {
		c.compensationError(400, "自定义薪资项无效")
		return
	}
	c.compensationOK(payrollMap(*row))
}

// Update POST /backend/oa/compensation/payrolls/:id
func (c *BackendOaCompensationController) Update() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	id, valid := compensationID(c.Ctx.Input.Param(":id"))
	if !valid {
		c.compensationError(400, "无效薪资单ID")
		return
	}
	var payload compensationPayrollPayload
	if !c.parseBody(&payload) {
		return
	}
	var row models.BackendOaPayroll
	if models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("id", id).Filter("tid", claims.TenantId).Filter("is_deleted", 0).One(&row) != nil {
		c.compensationError(404, "薪资单不存在")
		return
	}
	if row.Status != 0 {
		c.compensationError(400, "仅草稿薪资单可以编辑")
		return
	}
	if payload.EmployeeID == 0 || !compensationMonthPattern.MatchString(strings.TrimSpace(payload.PayrollMonth)) || !validateNonNegative(payload.BaseSalary, payload.PostAllowance, payload.PerformanceSalary, payload.TransportAllowance, payload.MealAllowance, payload.CommunicationAllowance, payload.OvertimePay, payload.Bonus, payload.OtherAddition, payload.LeaveDeduction, payload.LateDeduction, payload.OtherDeduction, payload.SocialInsurance, payload.HousingFund, payload.PersonalIncomeTax) {
		c.compensationError(400, "薪资单内容无效")
		return
	}
	employee, ok := c.employee(uint64(claims.TenantId), payload.EmployeeID)
	if !ok {
		c.compensationError(400, "员工不存在")
		return
	}
	exists := models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("tid", claims.TenantId).Filter("employee_id", payload.EmployeeID).Filter("payroll_month", payload.PayrollMonth).Filter("is_deleted", 0).Filter("id__ne", id).Exist()
	if exists {
		c.compensationError(409, "该员工本月薪资单已存在")
		return
	}
	row.EmployeeID, row.PayrollMonth = payload.EmployeeID, strings.TrimSpace(payload.PayrollMonth)
	c.fillPayroll(&row, payload, employee)
	now := time.Now()
	row.UpdateTime = &now
	if _, err = models.Orm.Update(&row); err != nil {
		c.compensationError(500, "更新薪资单失败")
		return
	}
	if err = c.saveItems(uint64(claims.TenantId), row.ID, payload.Items); err != nil {
		c.compensationError(400, "自定义薪资项无效")
		return
	}
	c.compensationOK(payrollMap(row))
}

// Delete DELETE /backend/oa/compensation/payrolls/:id
func (c *BackendOaCompensationController) Delete() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	id, valid := compensationID(c.Ctx.Input.Param(":id"))
	if !valid {
		c.compensationError(400, "无效薪资单ID")
		return
	}
	now := time.Now()
	count, err := models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("id", id).Filter("tid", claims.TenantId).Filter("status", 0).Filter("is_deleted", 0).Update(orm.Params{"is_deleted": int8(1), "delete_time": now, "update_time": now})
	if err != nil || count == 0 {
		c.compensationError(400, "薪资单不存在或当前状态不可删除")
		return
	}
	c.compensationOK(nil)
}

// UpdateStatus POST /backend/oa/compensation/payrolls/:id/status
func (c *BackendOaCompensationController) UpdateStatus() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	id, valid := compensationID(c.Ctx.Input.Param(":id"))
	if !valid {
		c.compensationError(400, "无效薪资单ID")
		return
	}
	var payload struct {
		Status int8 `json:"status"`
	}
	if !c.parseBody(&payload) {
		return
	}
	if payload.Status < 0 || payload.Status > 3 {
		c.compensationError(400, "无效状态")
		return
	}
	var row models.BackendOaPayroll
	if models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("id", id).Filter("tid", claims.TenantId).Filter("is_deleted", 0).One(&row) != nil {
		c.compensationError(404, "薪资单不存在")
		return
	}
	if row.Status == 2 && payload.Status != 2 {
		c.compensationError(400, "已发放薪资单不可修改状态")
		return
	}
	now := time.Now()
	row.Status, row.UpdateTime = payload.Status, &now
	if payload.Status == 1 {
		row.ConfirmedAt = &now
	}
	if payload.Status == 2 {
		row.PaidAt = &now
	}
	if _, err = models.Orm.Update(&row, "Status", "ConfirmedAt", "PaidAt", "UpdateTime"); err != nil {
		c.compensationError(500, "更新状态失败")
		return
	}
	c.compensationOK(payrollMap(row))
}

// Dashboard GET /backend/oa/compensation/dashboard
func (c *BackendOaCompensationController) Dashboard() {
	claims, err := c.compensationClaims()
	if err != nil {
		c.compensationError(401, "未登录或无权限")
		return
	}
	month := strings.TrimSpace(c.GetString("payroll_month"))
	if !compensationMonthPattern.MatchString(month) {
		month = time.Now().Format("2006-01")
	}
	var rows []models.BackendOaPayroll
	_, err = models.Orm.QueryTable(new(models.BackendOaPayroll)).Filter("tid", claims.TenantId).Filter("payroll_month", month).Filter("is_deleted", 0).All(&rows)
	if err != nil && err != orm.ErrNoRows {
		log.Printf("薪酬仪表盘统计失败: tid=%d month=%q err=%v", claims.TenantId, month, err)
		c.compensationError(500, "统计失败，请检查薪酬管理数据表是否已创建")
		return
	}
	totalNet, totalGross, draft, confirmed, paid := 0.0, 0.0, 0, 0, 0
	for _, row := range rows {
		totalNet += row.NetSalary
		totalGross += row.GrossSalary
		switch row.Status {
		case 0:
			draft++
		case 1:
			confirmed++
		case 2:
			paid++
		}
	}
	c.compensationOK(map[string]interface{}{"payroll_month": month, "employee_count": len(rows), "total_gross_salary": compensationMoney(totalGross), "total_net_salary": compensationMoney(totalNet), "draft_count": draft, "confirmed_count": confirmed, "paid_count": paid})
}