package controllers

import (
	"encoding/json"
	"server/models"

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

// DepartmentController 部门控制器
type DepartmentController struct {
	beego.Controller
}

// GetTenantDepartments 获取租户下的所有部门
// @router /departments/tenant/:tenantId [get]
func (c *DepartmentController) GetTenantDepartments() {
	tenantId, err := c.GetInt(":tenantId")
	if err != nil || tenantId <= 0 {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "租户ID无效",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	departments, err := models.GetTenantDepartments(tenantId)
	if err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "获取部门列表失败: " + err.Error(),
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	// 格式化返回数据
	deptList := make([]map[string]interface{}, 0)
	for _, dept := range departments {
		deptList = append(deptList, map[string]interface{}{
			"id":          dept.Id,
			"tenant_id":   dept.TenantId,
			"name":        dept.Name,
			"code":        dept.Code,
			"parent_id":   dept.ParentId,
			"description": dept.Description,
			"manager_id":  dept.ManagerId,
			"sort_order":  dept.SortOrder,
			"status":      dept.Status,
		})
	}

	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "获取部门列表成功",
		"data":    deptList,
	}
	c.ServeJSON()
}

// GetDepartmentInfo 获取部门详情
// @router /departments/:id [get]
func (c *DepartmentController) GetDepartmentInfo() {
	id, err := c.GetInt(":id")
	if err != nil || id <= 0 {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "部门ID无效",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	department, err := models.GetDepartmentById(id)
	if err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "部门不存在",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "获取部门信息成功",
		"data": map[string]interface{}{
			"id":          department.Id,
			"tenant_id":   department.TenantId,
			"name":        department.Name,
			"code":        department.Code,
			"parent_id":   department.ParentId,
			"description": department.Description,
			"manager_id":  department.ManagerId,
			"sort_order":  department.SortOrder,
			"status":      department.Status,
		},
	}
	c.ServeJSON()
}

// AddDepartment 添加部门
// @router /departments [post]
func (c *DepartmentController) AddDepartment() {
	var deptData struct {
		TenantId    int    `json:"tenant_id"`
		Name        string `json:"name"`
		Code        string `json:"code"`
		ParentId    int    `json:"parent_id"`
		Description string `json:"description"`
		ManagerId   int    `json:"manager_id"`
		SortOrder   int    `json:"sort_order"`
		Status      int8   `json:"status"`
	}

	err := json.Unmarshal(c.Ctx.Input.RequestBody, &deptData)
	if err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "请求参数错误: " + err.Error(),
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	department := &models.Department{
		TenantId:    deptData.TenantId,
		Name:        deptData.Name,
		Code:        deptData.Code,
		ParentId:    deptData.ParentId,
		Description: deptData.Description,
		ManagerId:   deptData.ManagerId,
		SortOrder:   deptData.SortOrder,
		Status:      deptData.Status,
	}

	if department.TenantId == 0 {
		department.TenantId = 1
	}

	id, err := models.AddDepartment(department)
	if err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "添加部门失败: " + err.Error(),
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	department.Id = int(id)
	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "添加部门成功",
		"data":    department,
	}
	c.ServeJSON()
}

// UpdateDepartment 更新部门信息
// @router /departments/:id [put]
func (c *DepartmentController) UpdateDepartment() {
	id, err := c.GetInt(":id")
	if err != nil || id <= 0 {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "部门ID无效",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	var updateData struct {
		Name        string `json:"name"`
		Code        string `json:"code"`
		ParentId    int    `json:"parent_id"`
		Description string `json:"description"`
		ManagerId   int    `json:"manager_id"`
		SortOrder   int    `json:"sort_order"`
		Status      int8   `json:"status"`
	}

	err = json.Unmarshal(c.Ctx.Input.RequestBody, &updateData)
	if err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "请求参数错误: " + err.Error(),
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	department, err := models.GetDepartmentById(id)
	if err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "部门不存在",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	department.Name = updateData.Name
	department.Code = updateData.Code
	department.ParentId = updateData.ParentId
	department.Description = updateData.Description
	department.ManagerId = updateData.ManagerId
	department.SortOrder = updateData.SortOrder
	department.Status = updateData.Status

	if err := models.UpdateDepartment(department); err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "更新部门信息失败: " + err.Error(),
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "更新部门信息成功",
		"data":    department,
	}
	c.ServeJSON()
}

// DeleteDepartment 删除部门
// @router /departments/:id [delete]
func (c *DepartmentController) DeleteDepartment() {
	id, err := c.GetInt(":id")
	if err != nil || id <= 0 {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "部门ID无效",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	if err := models.DeleteDepartment(id); err != nil {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "删除部门失败: " + err.Error(),
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "删除部门成功",
		"data":    nil,
	}
	c.ServeJSON()
}