package handler

import (
	"testing"
)

// TestUserHandler_PermissionCheck 测试权限检查逻辑
func TestUserHandler_PermissionCheck(t *testing.T) {
	tests := []struct {
		name      string
		userID    interface{}
		exists    bool
		wantValid bool
	}{
		{
			name:      "有效的用户ID",
			userID:    int64(1),
			exists:    true,
			wantValid: true,
		},
		{
			name:      "用户ID不存在",
			userID:    nil,
			exists:    false,
			wantValid: false,
		},
		{
			name:      "用户ID类型错误",
			userID:    "invalid",
			exists:    true,
			wantValid: false,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// 验证权限检查逻辑
			isValid := tt.exists
			if tt.exists {
				// 验证类型转换
				if _, ok := tt.userID.(int64); !ok {
					isValid = false
				}
			}
			if isValid != tt.wantValid {
				t.Errorf("Permission check failed: got %v, want %v", isValid, tt.wantValid)
			}
		})
	}
}

// TestUserHandler_RequestValidation 测试请求验证逻辑
func TestUserHandler_RequestValidation(t *testing.T) {
	tests := []struct {
		name      string
		avatar    string
		oldPass   string
		newPass   string
		wantValid bool
	}{
		{
			name:      "只更新头像",
			avatar:    "https://example.com/avatar.png",
			oldPass:   "",
			newPass:   "",
			wantValid: true,
		},
		{
			name:      "更新密码（提供旧密码和新密码）",
			avatar:    "",
			oldPass:   "oldpass123",
			newPass:   "newpass123",
			wantValid: true,
		},
		{
			name:      "只提供新密码（无效）",
			avatar:    "",
			oldPass:   "",
			newPass:   "newpass123",
			wantValid: false,
		},
		{
			name:      "只提供旧密码（无效）",
			avatar:    "",
			oldPass:   "oldpass123",
			newPass:   "",
			wantValid: false,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// 验证请求逻辑：更新密码时需要同时提供旧密码和新密码
			isValid := true
			if tt.newPass != "" && tt.oldPass == "" {
				isValid = false
			}
			if tt.oldPass != "" && tt.newPass == "" {
				isValid = false
			}
			if isValid != tt.wantValid {
				t.Errorf("Request validation failed: got %v, want %v", isValid, tt.wantValid)
			}
		})
	}
}

// TestUserHandler_ErrorHandling 测试错误处理逻辑
func TestUserHandler_ErrorHandling(t *testing.T) {
	tests := []struct {
		name      string
		errType   string
		wantCode  int
		wantError bool
	}{
		{
			name:      "未授权",
			errType:   "unauthorized",
			wantCode:  401,
			wantError: true,
		},
		{
			name:      "用户不存在",
			errType:   "not_found",
			wantCode:  404,
			wantError: true,
		},
		{
			name:      "参数错误",
			errType:   "bad_request",
			wantCode:  400,
			wantError: true,
		},
		{
			name:      "服务器错误",
			errType:   "server_error",
			wantCode:  500,
			wantError: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// 验证错误处理逻辑
			if !tt.wantError {
				t.Error("Error handling test should expect error")
			}
		})
	}
}