package api

import (
	"os"
	"path/filepath"

	"github.com/gin-gonic/gin"

	"eaisalestrain/backend/internal/config"
	"eaisalestrain/backend/internal/middleware"
)

// Cfg 全局配置，RegisterRoutes 时注入
var Cfg *config.Config

// RegisterRoutes 注册所有路由
func RegisterRoutes(r *gin.Engine, cfg *config.Config) {
	Cfg = cfg

	// 素材静态预览（只读）：仅公开 approved/ 子目录（已审批通过文件），
	// pending/ 未审批文件不对外暴露，落实「审批前置」。
	if err := os.MkdirAll(filepath.Join(cfg.KBDataDir, "approved"), 0o755); err == nil {
		r.Static("/media", filepath.Join(cfg.KBDataDir, "approved"))
	}

	r.GET("/api/health", func(c *gin.Context) {
		ver := "1.1.0"
		if p, err := config.LoadPlatformConfig(); err == nil {
			ver = p.Version
		}
		c.JSON(200, gin.H{"status": "ok", "service": "eaisalestrain-app", "version": ver})
	})

	auth := r.Group("/api/auth")
	{
		auth.POST("/login", Login)
		auth.GET("/me", middleware.Auth(cfg), Me)
	}

	// 员工可读
	r.GET("/api/company-train", middleware.Auth(cfg), GetCompanyTrain)
	r.POST("/api/company-train/suggest-material", middleware.Auth(cfg), SuggestMaterial)
	r.GET("/api/specialists", middleware.Auth(cfg), ListSpecialists)
	r.GET("/api/specialists/by-key/:key", middleware.Auth(cfg), GetSpecialistByKey)
	r.GET("/api/specialists/summary", middleware.Auth(cfg), SpecialistSummary)
	r.GET("/api/workbench/overview", middleware.Auth(cfg), WorkbenchOverview)
	r.GET("/api/worker/tasks", middleware.Auth(cfg), ListWorkerTasks)
	r.GET("/api/worker/tasks/:id", middleware.Auth(cfg), GetWorkerTaskDetail)
	r.GET("/api/worker/artifacts/:id", middleware.Auth(cfg), GetWorkerArtifactDetail)
	r.GET("/api/connectors", middleware.Auth(cfg), ListConnectors)
	r.GET("/api/connectors/:key", middleware.Auth(cfg), GetConnector)
	r.POST("/api/connectors/:key/query", middleware.Auth(cfg), QueryConnector)
	r.GET("/api/products", middleware.Auth(cfg), ListProducts)
	r.GET("/api/products/:id", middleware.Auth(cfg), GetProduct)
	r.GET("/api/courses", middleware.Auth(cfg), ListCourses)
	r.GET("/api/courses/:id", middleware.Auth(cfg), GetCourse)

	// 学员端考试
	r.GET("/api/exam/list", middleware.Auth(cfg), ExamList)
	r.GET("/api/exam/cover", middleware.Auth(cfg), ExamCover)
	r.POST("/api/exam/start", middleware.Auth(cfg), ExamStart)
	r.POST("/api/exam/submit", middleware.Auth(cfg), ExamSubmit)
	r.GET("/api/exam/record", middleware.Auth(cfg), ExamRecordList)
	r.GET("/api/exam/record/:recordId", middleware.Auth(cfg), ExamRecordDetail)
	r.GET("/api/exam/mistakes", middleware.Auth(cfg), MyMistakes)
	r.PUT("/api/exam/mistakes/:id/resolve", middleware.Auth(cfg), ResolveMistake)
	r.POST("/api/exam/mistakes/practice", middleware.Auth(cfg), MistakePractice)
	r.GET("/api/exam/certificates", middleware.Auth(cfg), MyCertificates)
	r.GET("/api/exam/certificates/:id", middleware.Auth(cfg), CertificateDetail)

	// 学员：我的岗位应学清单 / 学习档案 / 积分与排行榜
	r.GET("/api/my/position", middleware.Auth(cfg), MyPosition)
	r.GET("/api/my/profile", middleware.Auth(cfg), MyProfile)
	r.GET("/api/points/me", middleware.Auth(cfg), MyPoints)
	r.GET("/api/points/leaderboard", middleware.Auth(cfg), Leaderboard)

	// 站内消息通知
	r.GET("/api/notifications", middleware.Auth(cfg), MyNotifications)
	r.GET("/api/notifications/unread-count", middleware.Auth(cfg), UnreadNotificationCount)
	r.PUT("/api/notifications/:id/read", middleware.Auth(cfg), MarkNotificationRead)
	r.PUT("/api/notifications/read-all", middleware.Auth(cfg), MarkAllNotificationsRead)

	// 素材媒体（员工/管理员均可上传、预览）
	r.POST("/api/media/upload", middleware.Auth(cfg), Upload)
	r.POST("/api/media/upload-init", middleware.Auth(cfg), UploadInit)
	r.POST("/api/media/upload-chunk", middleware.Auth(cfg), UploadChunk)
	r.POST("/api/media/upload-complete", middleware.Auth(cfg), UploadComplete)
	r.GET("/api/media/preview/:mediaId", middleware.Auth(cfg), Preview)
	r.GET("/api/media/status/:mediaId", middleware.Auth(cfg), MediaStatus)

	r.GET("/api/knowledge/spaces", middleware.Auth(cfg), ListKnowledgeSpaces)
	r.GET("/api/knowledge/search", middleware.Auth(cfg), SearchKnowledge)
	r.GET("/api/knowledge/status/:sourceId", middleware.Auth(cfg), KnowledgeStatus)

	// ── AI 对话（普通员工可访问，管理员访问）──
	r.POST("/api/ai-chat/message", middleware.Auth(cfg), ChatMessage)
	r.GET("/api/ai-chat/quick-actions", middleware.Auth(cfg), QuickActions)
	r.POST("/api/ai-chat/quick-action", middleware.Auth(cfg), QuickAction)
	r.GET("/api/ai/me", middleware.Auth(cfg), AIUsageMe)
	r.GET("/api/ai/usage", middleware.Auth(cfg), AIUsage)
	r.GET("/api/ai/routes/chat", ListChatRoutes)
	r.GET("/api/ai/routes/embed", ListEmbedRoutes)

	// 学习进度（员工上报 + 本人查询）
	r.POST("/api/learning/progress", middleware.Auth(cfg), RecordLearningProgress)
	r.GET("/api/learning/me", middleware.Auth(cfg), MyLearningProgress)

	// 学习笔记（员工个人工具）
	r.GET("/api/notes", middleware.Auth(cfg), ListNotes)
	r.POST("/api/notes", middleware.Auth(cfg), CreateNote)
	r.PUT("/api/notes/:id", middleware.Auth(cfg), UpdateNote)
	r.DELETE("/api/notes/:id", middleware.Auth(cfg), DeleteNote)

	// 管理员维护
	admin := r.Group("/api")
	admin.Use(middleware.Auth(cfg), middleware.RequireAdmin())
	{
		admin.POST("/products", CreateProduct)
		admin.PUT("/products/:id", UpdateProduct)
		admin.DELETE("/products/:id", DeleteProduct)
		admin.POST("/products/import", ImportProducts)

		admin.POST("/courses", CreateCourse)
		admin.PUT("/courses/:id", UpdateCourse)

		admin.GET("/exam/questions", ListQuestions)
		admin.POST("/exam/questions", CreateQuestion)
		admin.PUT("/exam/questions/:id", UpdateQuestion)
		admin.DELETE("/exam/questions/:id", DeleteQuestion)
		admin.GET("/exam/papers", ListPapers)
		admin.POST("/exam/papers", CreatePaper)
		admin.PUT("/exam/papers/:id", UpdatePaper)
		admin.DELETE("/exam/papers/:id", DeletePaper)

		admin.GET("/media/audit-list", AuditList)
		admin.POST("/media/audit/:mediaId", AuditMedia)

		admin.POST("/knowledge/scan", KnowledgeScan)
		admin.POST("/knowledge/index/rebuild", RebuildKnowledgeIndex)
		admin.POST("/knowledge/spaces", CreateKnowledgeSpace)
		admin.PUT("/knowledge/spaces/:id", UpdateKnowledgeSpace)
		admin.DELETE("/knowledge/spaces/:id", DeleteKnowledgeSpace)
		admin.GET("/knowledge/faqs", ListKnowledgeFAQs)
		admin.POST("/knowledge/faqs", CreateKnowledgeFAQ)
		admin.PUT("/knowledge/faqs/:id", UpdateKnowledgeFAQ)
		admin.DELETE("/knowledge/faqs/:id", DeleteKnowledgeFAQ)
		admin.GET("/knowledge/audit-list", KnowledgeAuditList)
		admin.POST("/knowledge/audit/:sourceId", KnowledgeAudit)
		admin.GET("/knowledge/export", ExportKnowledge)

		admin.GET("/positions", ListPositions)
		admin.POST("/positions", CreatePosition)
		admin.PUT("/positions/:id", UpdatePosition)
		admin.DELETE("/positions/:id", DeletePosition)
		admin.POST("/specialists", CreateSpecialist)
		admin.PUT("/specialists/:id", UpdateSpecialist)
		admin.DELETE("/specialists/:id", DeleteSpecialist)
		admin.POST("/worker/tasks", CreateWorkerTask)
		admin.PUT("/worker/tasks/:id", UpdateWorkerTask)
		admin.PUT("/worker/tasks/:id/status", UpdateWorkerTaskStatus)
		admin.DELETE("/worker/tasks/:id", DeleteWorkerTask)
		admin.POST("/worker/tasks/:id/actions", ExecuteWorkerTaskAction)
		admin.PUT("/worker/artifacts/:id/status", UpdateWorkerArtifactStatus)
		admin.GET("/positions/:id/knowledge", ListPositionKnowledge)
		admin.PUT("/positions/:id/knowledge", SavePositionKnowledge)
		admin.GET("/positions/:id/blueprint", ListPositionBlueprint)
		admin.PUT("/positions/:id/blueprint", SavePositionBlueprint)
		admin.PUT("/users/:id/position", SetUserPosition)

		admin.GET("/departments", ListDepartments)
		admin.POST("/departments", CreateDepartment)
		admin.PUT("/departments/:id", UpdateDepartment)
		admin.DELETE("/departments/:id", DeleteDepartment)

		admin.GET("/system/users", ListUsers)
		admin.POST("/system/users", CreateUser)
		admin.PUT("/system/users/:id", UpdateUser)
		admin.GET("/system/users/:id/overview", UserOverview)
		admin.GET("/system/exam-records", ListExamRecords)
		admin.GET("/system/exam-records/export", ExportExamRecords)
		admin.GET("/system/exam-records/:id", GetExamRecord)
		admin.DELETE("/system/exam-records/:id", DeleteExamRecord)
		admin.GET("/system/dashboard", AdminDashboard)
		admin.GET("/system/exam-stats", ExamStats)
		admin.GET("/system/exam-stats-by-position", PositionExamStats)
		admin.GET("/system/department-stats", DepartmentStats)
		admin.GET("/system/certificates", AdminCertificates)
		admin.GET("/system/exam-coverage", ExamCoverage)
		admin.GET("/system/learning-progress", AdminLearningProgress)
		admin.GET("/system/config", GetConfig)
		admin.PUT("/system/config", UpdateConfig)

		admin.GET("/ai/config", GetAIConfig)
		admin.PUT("/ai/config", PutAIConfig)
		admin.POST("/ai/reload", ReloadAIConfig)
		admin.GET("/ai/secrets-status", SecretsStatusHandler)
		admin.GET("/ai/usage/users", AIUsageUsers)
	}
}