package admin

import (
	"strconv"

	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/net/ghttp"
	"nl-video-api/internal/dao"
	"nl-video-api/internal/service/auth"
	"nl-video-api/utility/response"
)

// PermissionController 权限控制器
type PermissionController struct{}

var Permission = &PermissionController{}

// Create 创建权限
func (c *PermissionController) Create(r *ghttp.Request) {
	var req *auth.PermissionCreateReq
	if err := r.Parse(&req); err != nil {
		response.Error(r, response.CodeInvalidParam, "参数解析失败: "+err.Error())
		return
	}

	id, err := auth.Permission.Create(r.Context(), req)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"id": id,
	})
}

// Update 更新权限
func (c *PermissionController) Update(r *ghttp.Request) {
	var req *auth.PermissionUpdateReq
	if err := r.Parse(&req); err != nil {
		response.Error(r, response.CodeInvalidParam, "参数解析失败: "+err.Error())
		return
	}

	// 从URL路径获取ID
	if req.Id == 0 {
		idStr := r.Get("id").String()
		if id, err := strconv.Atoi(idStr); err == nil {
			req.Id = id
		}
	}

	if req.Id <= 0 {
		response.Error(r, response.CodeInvalidParam, "权限ID无效")
		return
	}

	err := auth.Permission.Update(r.Context(), req)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, "更新成功")
}

// GetById 获取权限详情
func (c *PermissionController) GetById(r *ghttp.Request) {
	idStr := r.Get("id").String()
	id, err := strconv.Atoi(idStr)
	if err != nil || id <= 0 {
		response.Error(r, response.CodeInvalidParam, "权限ID无效")
		return
	}

	permission, err := auth.Permission.GetById(r.Context(), id)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	if permission == nil {
		response.Error(r, response.CodeNotFound, "权限不存在")
		return
	}

	response.Success(r, permission)
}

// GetList 获取权限列表
func (c *PermissionController) GetList(r *ghttp.Request) {
	var req *dao.PermissionListReq
	if err := r.Parse(&req); err != nil {
		response.Error(r, response.CodeInvalidParam, "参数解析失败: "+err.Error())
		return
	}

	permissions, total, err := auth.Permission.GetList(r.Context(), req)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"list":      permissions,
		"total":     total,
		"page":      req.Page,
		"page_size": req.PageSize,
	})
}

// GetTree 获取权限树形结构
func (c *PermissionController) GetTree(r *ghttp.Request) {
	permissions, err := auth.Permission.GetTree(r.Context())
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"tree": permissions,
	})
}

// Delete 删除权限
func (c *PermissionController) Delete(r *ghttp.Request) {
	idStr := r.Get("id").String()
	id, err := strconv.Atoi(idStr)
	if err != nil || id <= 0 {
		response.Error(r, response.CodeInvalidParam, "权限ID无效")
		return
	}

	err = auth.Permission.Delete(r.Context(), id)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, "删除成功")
}

// GetMenuPermissions 获取菜单权限
func (c *PermissionController) GetMenuPermissions(r *ghttp.Request) {
	permissions, err := auth.Permission.GetMenuPermissions(r.Context())
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"list": permissions,
	})
}

// GetApiPermissions 获取API权限
func (c *PermissionController) GetApiPermissions(r *ghttp.Request) {
	permissions, err := auth.Permission.GetApiPermissions(r.Context())
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"list": permissions,
	})
}

// GetUserPermissions 获取用户权限
func (c *PermissionController) GetUserPermissions(r *ghttp.Request) {
	userIdStr := r.Get("user_id").String()
	userId, err := strconv.Atoi(userIdStr)
	if err != nil || userId <= 0 {
		response.Error(r, response.CodeInvalidParam, "用户ID无效")
		return
	}

	permissions, err := auth.Permission.GetUserPermissions(r.Context(), userId)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"list": permissions,
	})
}

// CheckPermission 检查权限
func (c *PermissionController) CheckPermission(r *ghttp.Request) {
	userIdStr := r.Get("user_id").String()
	userId, err := strconv.Atoi(userIdStr)
	if err != nil || userId <= 0 {
		response.Error(r, response.CodeInvalidParam, "用户ID无效")
		return
	}

	permissionCode := r.Get("permission_code").String()
	if permissionCode == "" {
		response.Error(r, response.CodeInvalidParam, "权限编码不能为空")
		return
	}

	hasPermission, err := auth.Permission.CheckUserPermission(r.Context(), userId, permissionCode)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"has_permission": hasPermission,
	})
}

// CheckApiPermission 检查API权限
func (c *PermissionController) CheckApiPermission(r *ghttp.Request) {
	userIdStr := r.Get("user_id").String()
	userId, err := strconv.Atoi(userIdStr)
	if err != nil || userId <= 0 {
		response.Error(r, response.CodeInvalidParam, "用户ID无效")
		return
	}

	apiPath := r.Get("api_path").String()
	if apiPath == "" {
		response.Error(r, response.CodeInvalidParam, "API路径不能为空")
		return
	}

	method := r.Get("method").String()
	if method == "" {
		response.Error(r, response.CodeInvalidParam, "请求方法不能为空")
		return
	}

	hasPermission, err := auth.Permission.CheckApiPermission(r.Context(), userId, apiPath, method)
	if err != nil {
		response.Error(r, response.CodeError, err.Error())
		return
	}

	response.Success(r, g.Map{
		"has_permission": hasPermission,
	})
}