package client

import (
	"context"
	"io"
	"net/http"
	"strings"
	"testing"
)

func TestJournalClientAndAttachments(t *testing.T) {
	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		switch {
		case r.Method == http.MethodGet && r.URL.Path == "/v1/gardens/4/journal":
			_, _ = w.Write([]byte(`{"journal_entries":[{"id":8,"title":"Ernte"}]}`))
		case r.Method == http.MethodPost && r.URL.Path == "/v1/gardens/4/journal/8/attachments":
			if err := r.ParseMultipartForm(1024); err != nil {
				t.Error(err)
				http.Error(w, "bad multipart", 400)
				return
			}
			file, header, err := r.FormFile("file")
			if err != nil {
				t.Error(err)
				http.Error(w, "missing file", 400)
				return
			}
			defer file.Close()
			data, _ := io.ReadAll(file)
			if header.Filename != "ernte.jpg" || string(data) != "jpeg" {
				t.Errorf("unexpected upload: %q %q", header.Filename, data)
			}
			w.WriteHeader(http.StatusCreated)
			_, _ = w.Write([]byte(`{"attachment":{"id":9,"entry_id":8,"file_name":"ernte.jpg","media_type":"image/jpeg","size":4}}`))
		case r.Method == http.MethodGet && r.URL.Path == "/v1/gardens/4/journal/8/attachments/9":
			w.Header().Set("Content-Type", "image/jpeg")
			w.Header().Set("Content-Disposition", `inline; filename="ernte.jpg"`)
			_, _ = w.Write([]byte("jpeg"))
		default:
			http.NotFound(w, r)
		}
	})
	apiClient := newTestClient(t, handler)
	entries, _, err := apiClient.JournalEntries(context.Background(), 4)
	if err != nil || len(entries) != 1 || entries[0].Title != "Ernte" {
		t.Fatalf("entries: %#v, %v", entries, err)
	}
	attachment, _, err := apiClient.UploadJournalAttachment(context.Background(), 4, 8, "ernte.jpg", "image/jpeg", []byte("jpeg"))
	if err != nil || attachment.ID != 9 {
		t.Fatalf("upload: %#v, %v", attachment, err)
	}
	download, _, err := apiClient.JournalAttachment(context.Background(), 4, 8, 9)
	if err != nil || download.FileName != "ernte.jpg" || !strings.EqualFold(string(download.Data), "jpeg") {
		t.Fatalf("download: %#v, %v", download, err)
	}
}