// Package handler 处理所有 HTTP 请求，负责参数校验、调用 Service 层和返回响应
// 按业务模块分为简历管理、后台管理、AI 能力、文档处理、聊天对话等处理器
package handler

import (
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
	"path/filepath"
	"resume-platform/internal/model"
	"resume-platform/internal/service/document"
	"resume-platform/internal/service/portfolio"
	"resume-platform/internal/service/quiz"
	"resume-platform/internal/service/resume"
	"resume-platform/internal/service/system"
	"resume-platform/internal/service/user"
	"strings"

	"github.com/gin-gonic/gin"
)

// ResumeHandler 简历相关 HTTP 请求处理器，封装简历、作品集、用户、题库等业务的接口处理
type ResumeHandler struct {
	resumeService    resume.ResumeService       // 简历业务服务层实例
	documentService  document.DocumentService   // 文档服务层实例
	userService      user.UserService           // 用户服务层实例
	portfolioService portfolio.PortfolioService // 作品集服务层实例
	quizService      quiz.QuizService           // 答题服务层实例
	systemService    system.SystemService       // 系统服务层实例
}

// NewResumeHandler 创建简历处理器实例
// @param resumeService 简历业务服务
// @param documentService 文档服务
// @param userService 用户服务
// @param portfolioService 作品集服务
// @param quizService 答题服务
// @param systemService 系统服务
// @return *ResumeHandler 处理器实例
// @author sunct
func NewResumeHandler(resumeService resume.ResumeService, documentService document.DocumentService,
	userService user.UserService, portfolioService portfolio.PortfolioService,
	quizService quiz.QuizService, systemService system.SystemService) *ResumeHandler {
	return &ResumeHandler{
		resumeService:    resumeService,
		documentService:  documentService,
		userService:      userService,
		portfolioService: portfolioService,
		quizService:      quizService,
		systemService:    systemService,
	}
}

// ShowResume 渲染简历详情页面，根据路由参数获取简历数据并渲染对应模板
// 支持密码保护校验，通过 Cookie 记录验证状态
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) ShowResume(c *gin.Context) {
	route := c.Param("route")
	if route == "" || route == "/" {
		route = "default"
	}

	resume, err := h.resumeService.GetResumeByRoute(route)
	if err != nil {
		if route == "default" {
			resume, err = h.resumeService.InitDefaultResume()
			if err != nil {
				c.Status(http.StatusInternalServerError)
				return
			}
		} else {
			c.HTML(http.StatusNotFound, "web/404", nil)
			return
		}
	}

	if resume.Password != "" && resume.Password != "null" && resume.Password != "undefined" {
		sessionPassword, _ := c.Cookie("resume_password_" + route)
		if sessionPassword != resume.Password {
			config, _ := h.systemService.GetSystemConfig()
			if config == nil {
				config = &model.SystemConfig{
					WebsiteDomain:   "http://localhost:8090",
					WebsiteTitle:    "Resume Platform",
					WebsiteDesc:     "现代化的开源简历平台，支持多人简历管理、自定义模板、实时预览",
					WebsiteKeywords: "简历平台,开源,个人主页,作品集,简历管理",
				}
			}
			c.HTML(http.StatusOK, "web/password", gin.H{
				"route":        route,
				"SystemConfig": config,
			})
			return
		}
	}

	tmplName := "web/" + resume.Template
	c.HTML(http.StatusOK, tmplName, resume)
}

// VerifyPassword 验证简历访问密码，验证通过后写入 Cookie
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) VerifyPassword(c *gin.Context) {
	route := c.Param("route")
	password := c.PostForm("password")

	resume, err := h.resumeService.GetResumeByRoute(route)
	if err != nil {
		Unauthorized(c, "简历不存在")
		return
	}

	if password == resume.Password {
		c.SetCookie("resume_password_"+route, password, 3600, "/", "", false, true)
		Success(c, "验证成功")
	} else {
		Unauthorized(c, "密码错误")
	}
}

// GetResumeAPI 获取简历数据API，通过query参数route指定简历路由
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetResumeAPI(c *gin.Context) {
	route := c.Query("route")
	if route == "" {
		route = "default"
	}

	resume, err := h.resumeService.GetResumeByRoute(route)
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, resume)
}

// GetResumeByIDAPI 根据ID获取简历API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetResumeByIDAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	resume, err := h.resumeService.GetResume(id)
	if err != nil {
		NotFound(c, "resume not found")
		return
	}
	OK(c, resume)
}

// UpdateResumeByIDAPI 根据ID更新简历API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateResumeByIDAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	var req struct {
		Route      string             `json:"route"`
		Template   string             `json:"template"`
		ShowInHome bool               `json:"show_in_home"`
		BasicInfo  *model.BasicInfo   `json:"basic_info"`
		Experience []model.Experience `json:"experience"`
		Education  []model.Education  `json:"education"`
		Skills     []model.Skill      `json:"skills"`
		Projects   []model.Project    `json:"projects"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		BadRequest(c, err.Error())
		return
	}

	update := &model.ResumeUpdate{}
	if req.Route != "" {
		update.Route = &req.Route
	}
	if req.Template != "" {
		update.Template = &req.Template
	}
	update.ShowInHome = &req.ShowInHome
	if req.BasicInfo != nil {
		update.BasicInfo = req.BasicInfo
	}
	if len(req.Experience) > 0 {
		update.Experience = &req.Experience
	}
	if len(req.Education) > 0 {
		update.Education = &req.Education
	}
	if len(req.Skills) > 0 {
		update.Skills = &req.Skills
	}
	if len(req.Projects) > 0 {
		update.Projects = &req.Projects
	}

	resume, err := h.resumeService.UpdateResume(id, update)
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, resume, "更新成功")
}

// UpdateResumeShowInHomeAPI 更新简历首页展示状态API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateResumeShowInHomeAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	var req struct {
		ShowInHome bool `json:"show_in_home"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		BadRequest(c, err.Error())
		return
	}

	update := &model.ResumeUpdate{ShowInHome: &req.ShowInHome}
	_, err := h.resumeService.UpdateResume(id, update)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Success(c, "更新成功")
}

// UpdateResumePasswordAPI 更新简历密码API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateResumePasswordAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	var req struct {
		Password string `json:"password"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		BadRequest(c, err.Error())
		return
	}

	update := &model.ResumeUpdate{Password: &req.Password}
	_, err := h.resumeService.UpdateResume(id, update)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Success(c, "密码更新成功")
}

// GetAllResumesAPI 获取所有简历列表API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetAllResumesAPI(c *gin.Context) {
	resumes, err := h.resumeService.GetAllResumes()
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, resumes)
}

// CreateResumeAPI 创建简历API，需要提供route参数作为访问路径
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) CreateResumeAPI(c *gin.Context) {
	var req struct {
		Route      string `json:"route"`        // 简历访问路由
		ShowInHome bool   `json:"show_in_home"` // 是否在首页展示，默认true
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		BadRequest(c, err.Error())
		return
	}

	if req.Route == "" {
		BadRequest(c, "route is required")
		return
	}

	resume := &model.Resume{ShowInHome: req.ShowInHome}
	resume, err := h.resumeService.CreateResumeWithRoute(req.Route, resume)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Created(c, resume)
}

// DeleteResumeAPI 删除简历API，通过路径参数id指定简历ID
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) DeleteResumeAPI(c *gin.Context) {
	id := c.Param("id")
	err := h.resumeService.DeleteResume(id)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Success(c, "删除成功")
}

// UpdateResumeUserIDAPI 更新简历的用户绑定API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateResumeUserIDAPI(c *gin.Context) {
	id := c.Param("id")
	var req struct {
		UserID string `json:"user_id"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		BadRequest(c, err.Error())
		return
	}
	err := h.resumeService.UpdateResumeUserID(id, req.UserID)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Success(c, "更新成功")
}

// AdminCreateResumeAPI 后台创建简历API，通过user_id参数关联用户
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) AdminCreateResumeAPI(c *gin.Context) {
	var req struct {
		UserID     string           `json:"user_id"`
		Route      string           `json:"route"`
		ShowInHome bool             `json:"show_in_home"`
		BasicInfo  *model.BasicInfo `json:"basic_info"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		BadRequest(c, err.Error())
		return
	}

	if req.UserID == "" {
		BadRequest(c, "user_id is required")
		return
	}

	user, err := h.userService.GetUserByID(req.UserID)
	if err != nil {
		NotFound(c, "用户不存在")
		return
	}

	route := req.Route
	if route == "" {
		route = user.Username
		if route == "" {
			route = "resume-" + req.UserID[:8]
		}
	}

	basicInfo := req.BasicInfo
	if basicInfo == nil {
		basicInfo = &model.BasicInfo{}
	}

	if basicInfo.Name == "" {
		basicInfo.Name = user.Name
	}
	if basicInfo.Email == "" {
		basicInfo.Email = user.Email
	}
	if basicInfo.Phone == "" {
		basicInfo.Phone = user.Phone
	}

	resume := &model.Resume{
		ShowInHome: req.ShowInHome,
		UserID:     req.UserID,
		BasicInfo:  *basicInfo,
	}
	resume, err = h.resumeService.CreateResumeWithRoute(route, resume)
	if err != nil {
		Error(c, err.Error())
		return
	}

	Created(c, resume, "简历创建成功")
}

// RouteCheckAPI 检查路由是否已存在API，通过query参数route查询
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) RouteCheckAPI(c *gin.Context) {
	route := c.Query("route")
	exists := h.resumeService.RouteExists(route)
	OK(c, gin.H{"exists": exists})
}

// UpdateResumeAPI 更新简历API，通过query参数route指定简历路由
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateResumeAPI(c *gin.Context) {
	var update model.ResumeUpdate
	if err := c.ShouldBindJSON(&update); err != nil {
		BadRequest(c, err.Error())
		return
	}

	route := c.Query("route")
	if route == "" {
		route = "default"
	}

	resume, err := h.resumeService.GetResumeByRoute(route)
	if err != nil {
		Error(c, err.Error())
		return
	}

	updated, err := h.resumeService.UpdateResume(resume.ID, &update)
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, updated)
}

// ShowHome 渲染产品首页，展示所有简历列表和统计数据
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) ShowHome(c *gin.Context) {
	resumes, err := h.resumeService.GetAllResumes()
	if err != nil {
		resumes = []*model.Resume{}
	}

	config, _ := h.systemService.GetSystemConfig()
	if config == nil {
		config = &model.SystemConfig{
			WebsiteDomain:   "http://localhost:8090",
			WebsiteTitle:    "Resume Platform",
			WebsiteDesc:     "现代化的开源简历平台，支持多人简历管理、自定义模板、实时预览",
			WebsiteKeywords: "简历平台,开源,个人主页,作品集,简历管理",
		}
	}

	type HomeStats struct {
		TotalUsers     int
		TotalResumes   int
		TotalPortfolio int
		TotalQuiz      int
	}

	stats := HomeStats{}
	users, _ := h.userService.GetAllUsers()
	stats.TotalUsers = len(users)
	stats.TotalResumes = len(resumes)

	c.HTML(http.StatusOK, "web/home", gin.H{
		"Resumes":      resumes,
		"SystemConfig": config,
		"Stats":        stats,
	})
}

// ShowPortfolio 渲染作品集页面，根据路由参数获取对应简历的项目列表
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) ShowPortfolio(c *gin.Context) {
	route := c.Param("route")
	resume, err := h.resumeService.GetResumeByRoute(route)
	if err != nil {
		c.Status(http.StatusNotFound)
		return
	}

	c.HTML(http.StatusOK, "web/portfolio", gin.H{
		"Resume": resume,
	})
}

// ShowContact 渲染联系方式页面，根据路由参数获取对应简历的联系信息
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) ShowContact(c *gin.Context) {
	route := c.Param("route")
	resume, err := h.resumeService.GetResumeByRoute(route)
	if err != nil {
		c.Status(http.StatusNotFound)
		return
	}

	c.HTML(http.StatusOK, "web/contact", resume)
}

// Sitemap 生成站点地图XML，用于搜索引擎SEO优化
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) Sitemap(c *gin.Context) {
	sitemap := `<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
    <loc>https://zhangsan.dev/</loc>
    <lastmod>2026-07-13</lastmod>
    <changefreq>weekly</changefreq>
    <priority>1.0</priority>
  </url>
  <url>
    <loc>https://zhangsan.dev/portfolio</loc>
    <lastmod>2026-07-13</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>
  <url>
    <loc>https://zhangsan.dev/contact</loc>
    <lastmod>2026-07-13</lastmod>
    <changefreq>yearly</changefreq>
    <priority>0.5</priority>
  </url>
</urlset>`

	c.Header("Content-Type", "application/xml")
	c.String(http.StatusOK, sitemap)
}

// GetPortfolioItemsAPI 获取所有作品集项目列表API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetPortfolioItemsAPI(c *gin.Context) {
	items, err := h.portfolioService.GetPortfolioItems()
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, items)
}

// GetPortfolioItemAPI 获取单个作品集项目API，通过路径参数id指定项目ID
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetPortfolioItemAPI(c *gin.Context) {
	id := c.Param("id")
	var itemID uint
	if _, err := fmt.Sscanf(id, "%d", &itemID); err != nil {
		BadRequest(c, "invalid id")
		return
	}

	item, err := h.portfolioService.GetPortfolioItem(itemID)
	if err != nil {
		NotFound(c, "portfolio item not found")
		return
	}

	OK(c, item)
}

// CreatePortfolioItemAPI 创建作品集项目API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) CreatePortfolioItemAPI(c *gin.Context) {
	var item model.PortfolioItem
	if err := c.ShouldBindJSON(&item); err != nil {
		BadRequest(c, err.Error())
		return
	}

	err := h.portfolioService.CreatePortfolioItem(&item)
	if err != nil {
		Error(c, err.Error())
		return
	}

	createNotification("portfolio", "新作品集项目", "作品集项目 "+item.Name+" 已添加", "/dashboard/portfolios")

	Created(c, item, "作品集项目创建成功")
}

// UpdatePortfolioItemAPI 更新作品集项目API，通过路径参数id指定项目ID
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdatePortfolioItemAPI(c *gin.Context) {
	id := c.Param("id")
	var itemID uint
	if _, err := fmt.Sscanf(id, "%d", &itemID); err != nil {
		BadRequest(c, "invalid id")
		return
	}

	existing, err := h.portfolioService.GetPortfolioItem(itemID)
	if err != nil {
		Error(c, err.Error())
		return
	}
	if existing == nil {
		NotFound(c, "portfolio item not found")
		return
	}

	var updates model.PortfolioItem
	if err := c.ShouldBindJSON(&updates); err != nil {
		BadRequest(c, err.Error())
		return
	}

	if updates.Name != "" {
		existing.Name = updates.Name
	}
	if updates.Description != "" {
		existing.Description = updates.Description
	}
	if len(updates.TechStack) > 0 {
		existing.TechStack = updates.TechStack
	}
	if updates.URL != "" {
		existing.URL = updates.URL
	}
	if updates.StartDate != "" {
		existing.StartDate = updates.StartDate
	}
	if updates.EndDate != "" {
		existing.EndDate = updates.EndDate
	}
	if updates.Doc != "" {
		existing.Doc = updates.Doc
	}
	if updates.ResumeID != "" {
		existing.ResumeID = updates.ResumeID
	}
	if updates.ProjectID != 0 {
		existing.ProjectID = updates.ProjectID
	}
	if updates.Password != "" {
		existing.Password = updates.Password
	}
	existing.ShowInResume = updates.ShowInResume
	existing.Hidden = updates.Hidden

	err = h.portfolioService.UpdatePortfolioItem(itemID, existing)
	if err != nil {
		Error(c, err.Error())
		return
	}

	OK(c, existing, "作品集项目更新成功")
}

// DeletePortfolioItemAPI 删除作品集项目API，通过路径参数id指定项目ID
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) DeletePortfolioItemAPI(c *gin.Context) {
	id := c.Param("id")
	var itemID uint
	if _, err := fmt.Sscanf(id, "%d", &itemID); err != nil {
		BadRequest(c, "invalid id")
		return
	}

	if err := h.portfolioService.DeletePortfolioItem(itemID); err != nil {
		Error(c, err.Error())
		return
	}

	Success(c, "删除成功")
}

// CreateQuizRecordAPI 创建面试题答题记录API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) CreateQuizRecordAPI(c *gin.Context) {
	var record model.QuizRecord
	if err := c.ShouldBindJSON(&record); err != nil {
		BadRequest(c, err.Error())
		return
	}

	log.Printf("[DEBUG] CreateQuizRecordAPI received data: id=%s, resume_id=%s, resume_route=%s, title=%s, score=%f, correct_count=%d, total_count=%d, questions_len=%d",
		record.ID, record.ResumeID, record.ResumeRoute, record.Title, record.Score, record.CorrectCount, record.TotalCount, len(record.Questions))

	if record.ResumeRoute == "" && record.ResumeID != "" {
		resume, err := h.resumeService.GetResume(record.ResumeID)
		if err == nil && resume != nil {
			record.ResumeRoute = resume.Route
		}
	}

	if record.ResumeRoute == "" {
		record.ResumeRoute = "custom-quiz"
	}

	err := h.quizService.CreateQuizRecord(&record)
	if err != nil {
		Error(c, err.Error())
		return
	}

	createNotification("quiz", "新答题记录", "新的面试答题记录已生成，得分 "+fmt.Sprintf("%.1f", record.Score), "/dashboard/quiz")

	log.Printf("[DEBUG] CreateQuizRecordAPI success, record id=%s", record.ID)
	Created(c, record)
}

// GetQuizRecordsAPI 获取面试题答题记录列表API，通过query参数route指定简历路由
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetQuizRecordsAPI(c *gin.Context) {
	route := c.Query("route")
	if route == "" {
		BadRequest(c, "route is required")
		return
	}

	records, err := h.quizService.GetQuizRecordsByResume(route)
	if err != nil {
		Error(c, err.Error())
		return
	}

	OK(c, records)
}

// GetQuizRecordAPI 获取单条面试题答题记录API，通过路径参数id指定记录ID
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetQuizRecordAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	record, err := h.quizService.GetQuizRecord(id)
	if err != nil {
		NotFound(c, "record not found")
		return
	}

	OK(c, record)
}

// DeleteQuizRecordAPI 删除面试题答题记录API，通过路径参数id指定记录ID
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) DeleteQuizRecordAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	err := h.quizService.DeleteQuizRecord(id)
	if err != nil {
		Error(c, err.Error())
		return
	}

	Success(c, "删除成功")
}

// CreateFavoriteQuestionAPI 创建收藏/错题记录API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) CreateFavoriteQuestionAPI(c *gin.Context) {
	var fav model.FavoriteQuestion
	if err := c.ShouldBindJSON(&fav); err != nil {
		BadRequest(c, err.Error())
		return
	}

	// 当 resume_route 为空但 resume_id 存在时，从简历中获取路由
	if fav.ResumeRoute == "" && fav.ResumeID != "" {
		resume, err := h.resumeService.GetResume(fav.ResumeID)
		if err == nil && resume != nil {
			fav.ResumeRoute = resume.Route
		}
	}

	// 仍然为空时使用默认值 custom-quiz，保证自由练习的错题/收藏也能保存
	if fav.ResumeRoute == "" {
		fav.ResumeRoute = "custom-quiz"
	}

	err := h.quizService.CreateFavoriteQuestion(&fav)
	if err != nil {
		Error(c, err.Error())
		return
	}

	Created(c, fav)
}

// GetFavoriteQuestionsAPI 获取收藏/错题记录列表API，支持按收藏状态和对错筛选
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetFavoriteQuestionsAPI(c *gin.Context) {
	route := c.Query("route")
	if route == "" {
		BadRequest(c, "route is required")
		return
	}

	var isFavorite, isCorrect *bool

	if favStr := c.Query("is_favorite"); favStr != "" {
		fav := favStr == "true"
		isFavorite = &fav
	}
	if correctStr := c.Query("is_correct"); correctStr != "" {
		correct := correctStr == "true"
		isCorrect = &correct
	}

	favorites, err := h.quizService.GetFavoriteQuestions(route, isFavorite, isCorrect)
	if err != nil {
		Error(c, err.Error())
		return
	}

	OK(c, favorites)
}

// DeleteFavoriteQuestionAPI 删除收藏/错题记录API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) DeleteFavoriteQuestionAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	err := h.quizService.DeleteFavoriteQuestion(id)
	if err != nil {
		Error(c, err.Error())
		return
	}

	Success(c, "删除成功")
}

// ToggleFavoriteAPI 切换题目收藏状态API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) ToggleFavoriteAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	err := h.quizService.ToggleFavorite(id)
	if err != nil {
		Error(c, err.Error())
		return
	}

	Success(c, "切换成功")
}

// CreateUserAPI 创建用户API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) CreateUserAPI(c *gin.Context) {
	var user model.User
	if err := c.ShouldBindJSON(&user); err != nil {
		BadRequest(c, "参数错误")
		return
	}

	if user.Username == "" {
		BadRequest(c, "用户名不能为空")
		return
	}

	err := h.userService.CreateUser(&user)
	if err != nil {
		if strings.Contains(err.Error(), "UNIQUE constraint") && strings.Contains(err.Error(), "username") {
			Conflict(c, "用户名已存在")
		} else {
			Error(c, err.Error())
		}
		return
	}

	createNotification("user", "新用户添加", "用户 "+user.Name+"("+user.Username+") 已添加", "/dashboard/users")

	Success(c, "用户添加成功")
}

// GetAllUsersAPI 获取所有用户列表API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetAllUsersAPI(c *gin.Context) {
	users, err := h.userService.GetAllUsers()
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, users)
}

// GetUserAPI 根据ID获取用户API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetUserAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	user, err := h.userService.GetUserByID(id)
	if err != nil {
		NotFound(c, "user not found")
		return
	}
	OK(c, user)
}

// UpdateUserAPI 更新用户信息API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateUserAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	var user model.User
	if err := c.ShouldBindJSON(&user); err != nil {
		BadRequest(c, err.Error())
		return
	}

	err := h.userService.UpdateUser(id, &user)
	if err != nil {
		Error(c, err.Error())
		return
	}

	Success(c, "更新成功")
}

// DeleteUserAPI 删除用户API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) DeleteUserAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}

	err := h.userService.DeleteUser(id)
	if err != nil {
		Error(c, err.Error())
		return
	}

	Success(c, "删除成功")
}

// GetResumesByUserAPI 根据用户ID获取简历列表API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetResumesByUserAPI(c *gin.Context) {
	userID := c.Query("user_id")
	if userID == "" {
		BadRequest(c, "user_id is required")
		return
	}

	resumes, err := h.resumeService.GetResumesByUserID(userID)
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, resumes)
}

// GetPortfolioItemsByUserAPI 根据用户ID获取作品集列表API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetPortfolioItemsByUserAPI(c *gin.Context) {
	userID := c.Query("user_id")
	if userID == "" {
		BadRequest(c, "user_id is required")
		return
	}

	items, err := h.portfolioService.GetPortfolioItemsByUserID(userID)
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, items)
}

// GetAllMenusAPI 获取所有菜单列表API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetAllMenusAPI(c *gin.Context) {
	menus, err := h.systemService.GetAllMenus()
	if err != nil {
		Error(c, err.Error())
		return
	}
	OK(c, menus)
}

// CreateMenuAPI 创建菜单API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) CreateMenuAPI(c *gin.Context) {
	var menu model.Menu
	if err := c.ShouldBindJSON(&menu); err != nil {
		BadRequest(c, err.Error())
		return
	}
	if menu.Name == "" {
		BadRequest(c, "name is required")
		return
	}
	err := h.systemService.CreateMenu(&menu)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Created(c, menu)
}

// UpdateMenuAPI 更新菜单API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateMenuAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}
	var menu model.Menu
	if err := c.ShouldBindJSON(&menu); err != nil {
		BadRequest(c, err.Error())
		return
	}
	err := h.systemService.UpdateMenu(id, &menu)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Success(c, "更新成功")
}

// DeleteMenuAPI 删除菜单API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) DeleteMenuAPI(c *gin.Context) {
	id := c.Param("id")
	if id == "" {
		BadRequest(c, "id is required")
		return
	}
	err := h.systemService.DeleteMenu(id)
	if err != nil {
		Error(c, err.Error())
		return
	}
	Success(c, "删除成功")
}

// GetSystemConfigAPI 获取系统配置API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GetSystemConfigAPI(c *gin.Context) {
	config, err := h.systemService.GetSystemConfig()
	if err != nil {
		if os.IsNotExist(err) {
			c.JSON(http.StatusOK, &model.SystemConfig{
				ID:            "default",
				WebsiteDomain: "http://localhost:8090",
				WebsiteTitle:  "Resume Platform",
			})
			return
		}
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, config)
}

// UpdateSystemConfigAPI 更新系统配置API
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) UpdateSystemConfigAPI(c *gin.Context) {
	var config model.SystemConfig
	if err := c.ShouldBindJSON(&config); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	if config.ID == "" {
		config.ID = "default"
	}
	existing, _ := h.systemService.GetSystemConfig()
	if existing == nil {
		err := h.systemService.CreateSystemConfig(&config)
		if err != nil {
			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
			return
		}
	} else {
		err := h.systemService.UpdateSystemConfig(config.ID, &config)
		if err != nil {
			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
			return
		}
	}
	c.JSON(http.StatusOK, gin.H{"message": "updated"})
}

// GenerateResumeFromDocumentAPI 从文档生成简历API，支持上传word、pdf、excel、markdown、txt等格式
// @param c Gin 上下文
// @author sunct
func (h *ResumeHandler) GenerateResumeFromDocumentAPI(c *gin.Context) {
	userID := c.PostForm("user_id")
	if userID == "" {
		userID = c.GetHeader("X-User-ID")
		if userID == "" {
			userID = "1"
		}
	}

	file, err := c.FormFile("file")
	if err != nil {
		BadRequest(c, "请选择要上传的文件")
		return
	}

	fileExt := strings.ToLower(filepath.Ext(file.Filename))
	allowedExts := map[string]bool{
		".pdf":      true,
		".docx":     true,
		".xlsx":     true,
		".md":       true,
		".markdown": true,
		".txt":      true,
	}
	if !allowedExts[fileExt] {
		BadRequest(c, "不支持的文件格式，支持：pdf, docx, xlsx, md, txt")
		return
	}

	f, err := file.Open()
	if err != nil {
		Error(c, "文件打开失败")
		return
	}
	defer f.Close()

	content, err := io.ReadAll(f)
	if err != nil {
		Error(c, "文件读取失败")
		return
	}

	resume, err := h.documentService.ParseAndGenerateResume(c.Request.Context(), userID, file.Filename, content)
	if err != nil {
		Error(c, "文档解析或简历生成失败: "+err.Error())
		return
	}

	resume, err = h.resumeService.CreateResumeWithRoute(resume.Route, resume)
	if err != nil {
		Error(c, "简历保存失败: "+err.Error())
		return
	}

	Created(c, resume, "简历生成成功")
}