package routes

import (
    "encoding/json"
    "net/http"
    "reichard.io/imagini/internal/context"
)

type ImaginiContext struct {
    *context.ImaginiContext
}

func RegisterRoutes(cctx *context.ImaginiContext) {
    ctx := &ImaginiContext{cctx}
    http.HandleFunc("/MediaItems", ctx.mediaItemsHandler)
    http.HandleFunc("/Upload",     ctx.uploadHandler)
    http.HandleFunc("/Albums",     ctx.albumsHandler)
    http.HandleFunc("/Logout",     ctx.logoutHandler)
    http.HandleFunc("/Login",      ctx.loginHandler)
    http.HandleFunc("/Users",      ctx.usersHandler)
    http.HandleFunc("/Tags",       ctx.tagsHandler)
    http.HandleFunc("/Info",       ctx.infoHandler)
    http.HandleFunc("/Me",         ctx.meHandler)
}

// https://stackoverflow.com/a/59764037
func JSONError(w http.ResponseWriter, err string, code int) {
    w.Header().Set("Content-Type", "application/json; charset=utf-8")
    w.Header().Set("X-Content-Type-Options", "nosniff")
    w.WriteHeader(code)
    json.NewEncoder(w).Encode(map[string]interface{}{"error": err})
}

func JSONSuccess(w http.ResponseWriter, msg string, code int) {
    w.Header().Set("Content-Type", "application/json; charset=utf-8")
    w.Header().Set("X-Content-Type-Options", "nosniff")
    w.WriteHeader(code)
    json.NewEncoder(w).Encode(map[string]interface{}{"success": msg})
}

// METHOD:
//    switch r.Method {
//    case http.MethodGet:
//        // Serve the resource.
//    case http.MethodPost:
//        // Create a new record.
//    case http.MethodPut:
//        // Update an existing record.
//    case http.MethodDelete:
//        // Remove the record.
//    default:
//        // Give an error message.
//    }


// commonMiddleware := []Middleware{
//   logMiddleware,
//   authMiddleware,
// }
// http.Handle("/Users", MultipleMiddleware(usersHandler, commonMiddleware...))
// http.Handle("/Uploads/", MultipleMiddleware(uploadsHandler, commonMiddleware...))

// // http.HandleFunc("/uploads/", uploadsHandler())
// http.Handle("/Uploads/", func(next http.Handler) http.Handler {
//   return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
//       _, ok := ValidateUserToken(r)

//       if ok {
//           next.ServeHTTP(w, r)
//       } else {
//           w.WriteHeader(http.StatusUnauthorized)
//       }
//   })
// }(http.StripPrefix("/Uploads/", tusHandler)))

// Filter Example:
//  query := r.URL.Query()
//  filters, present := query["filters"]

// func uploadsHandler() http.Handler {
//     store := filestore.FileStore{
// 		Path: "./Uploads",
// 	}
//     composer := tusd.NewStoreComposer()
//     store.UseIn(composer)
// 
//     handler, err := tusd.NewHandler(tusd.Config{
// 		BasePath:              "/uploads/",
// 		StoreComposer:         composer,
// 		NotifyCompleteUploads: true,
// 	})
// 
// 	if err != nil {
// 		panic(fmt.Errorf("Unable to create handler: %s", err))
// 	}
// 
//     go func() {
// 		for {
// 			event := <-handler.CompleteUploads
// 			fmt.Printf("Upload %s finished\n", event.Upload.ID)
// 		}
// 	}()
// 
//     // return func(w http.ResponseWriter, r *http.Request) {
//     //   http.StripPrefix("/Uploads/", handler).ServeHTTP(w, r)
//     // };
// 
//     return http.StripPrefix("/Uploads/", handler)
// }

// func processMedia() {
//     var mi db.MediaItem
// 
    // TODO:
    //  - Derive Magic -> mediaType
    //  - Create Thumbnail
    //  - Pull EXIF
    //      - EXIFDate
    //      - Latitude
    //      - Longitude
    //  - TensorFlow Classification
    //      - https://outcrawl.com/image-recognition-api-go-tensorflow
    //      - Update Tags / MediaTags Table
    //  - Save Image
    //      - Update MediaItems Table



    // import "github.com/disintegration/imaging"
    // 
    // img, err := imaging.Open("original.jpg", imaging.AutoOrientation(true))
    // if err != nil {
    //     return nil, err
    // }
    // 
    // img = imaging.Fit(img, 240, 160, imaging.Lanczos)
    // err = imaging.Save(img, "thumbnail.jpg")
// }