package image_test

import (
	"bytes"
	"context"
	"encoding/base64"
	"fmt"
	"mime/multipart"
	"net/http"
	"net/http/httptest"
	"os"
	"strings"
	"testing"

	"github.com/matryer/is"
	"go.sour.is/paste/v2/image"
)

var testImage = "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z/C/HgAGgwJ/lK3Q6wAAAABJRU5ErkJggg=="


func TestPostImgur(t *testing.T) {
	is := is.New(t)

	ctx := context.Background()

	dir, err := os.MkdirTemp("", "image")
	is.NoErr(err)

	im, err := image.New(ctx, dir, 0)
	is.NoErr(err)

	{
		body := &bytes.Buffer{}
		wr := multipart.NewWriter(body)
		w, err := wr.CreateFormField("type")
		is.NoErr(err)

		fmt.Fprint(w, "base64")

		w, err = wr.CreateFormField("image")
		is.NoErr(err)

		fmt.Fprint(w, testImage)

		err = wr.Close()
		is.NoErr(err)

		t.Log(body.String())

		req := httptest.NewRequest("POST", "/3/upload", body)
		req.Header.Set("Content-Type", "multipart/form-data; boundary="+wr.Boundary())
		res := httptest.NewRecorder()

		im.ServeHTTP(res, req)

		is.Equal(res.Code, http.StatusOK)
		is.Equal(res.Body.String(), `{"data":{"link":"https://example.com/i/Igg59VTi6JNuXVriXMR3U_lzfAc","deletehash":""},"success":true,"status":200}
`)	
	}

	{
		req := httptest.NewRequest("GET", "/Igg59VTi6JNuXVriXMR3U_lzfAc", nil)
		res := httptest.NewRecorder()
	
		im.ServeHTTP(res, req)

		is.Equal(res.Code, http.StatusOK)

		s := base64.StdEncoding.EncodeToString(res.Body.Bytes())
		is.Equal(s, testImage)
		t.Log(res.Header())
		is.Equal(res.Header().Get("ETag"), "Igg59VTi6JNuXVriXMR3U_lzfAc")

	}

	err = os.RemoveAll(dir)
	is.NoErr(err)
}

func TestPost(t *testing.T) {
	is := is.New(t)

	ctx := context.Background()

	dir, err := os.MkdirTemp("", "image")
	is.NoErr(err)

	im, err := image.New(ctx, dir, 0)
	is.NoErr(err)

	{
		req := httptest.NewRequest("POST", "/i", base64.NewDecoder(base64.StdEncoding, strings.NewReader(testImage)))
		res := httptest.NewRecorder()

		im.ServeHTTP(res, req)

		is.Equal(res.Code, http.StatusCreated)
		is.Equal(res.Body.String(), `{"data":{"link":"https://example.com/i/Igg59VTi6JNuXVriXMR3U_lzfAc","deletehash":""},"success":true,"status":200}
`)

	}

	{
		req := httptest.NewRequest("GET", "/Igg59VTi6JNuXVriXMR3U_lzfAc", nil)
		res := httptest.NewRecorder()
	
		im.ServeHTTP(res, req)

		is.Equal(res.Code, http.StatusOK)

		s := base64.StdEncoding.EncodeToString(res.Body.Bytes())
		is.Equal(s, testImage)
	}

	err = os.RemoveAll(dir)
	is.NoErr(err)
}