package controllers

import (
	"encoding/json"
	"io/ioutil"
	"net/http"
	"time"

	"github.com/geplauder/lithium/pipelines"
	"github.com/geplauder/lithium/settings"
	"github.com/geplauder/lithium/storage"
)

type File struct {
	Bucket     string    `json:"bucket"`
	FileName   string    `json:"file_name"`
	Size       int       `json:"size"`
	ModifiedAt time.Time `json:"modified_at"`
}

func FileHandler(w http.ResponseWriter, r *http.Request, pipes []pipelines.IPipeline, storageProvider storage.IStorageProvider, appSettings settings.Settings) {
	buckets, err := ioutil.ReadDir("./files/" + appSettings.StorageProvider.BasePath)
	if err != nil {
		json.NewEncoder(w).Encode(struct {
			Files []File `json:"files"`
		}{})
		return
	}

	var files []File

	for _, b := range buckets {
		bucketFiles, err := ioutil.ReadDir("./files/" + appSettings.StorageProvider.BasePath + "/" + b.Name())
		if err != nil {
			writeError(w, 500, "Base path not found")
			return
		}

		for _, f := range bucketFiles {
			files = append(files, File{b.Name(), f.Name(), int(f.Size()), f.ModTime()})
		}
	}

	err = json.NewEncoder(w).Encode(struct {
		Files []File `json:"files"`
	}{files})
	if err != nil {
		w.WriteHeader(http.StatusInternalServerError)
	}
}