package test

import (
	"GohCMS2/domain/article"
	"bytes"
	"encoding/json"
	"github.com/stretchr/testify/assert"
	"io"
	"net/http"
	"strconv"
	"testing"
)

var TestCreateArticleSuccess = func(t *testing.T) {
	jsonBody, err := json.Marshal(map[string]string{
		"title": "Test Title",
		"body":  "Test Body",
	})
	if err != nil {
		t.Fatal(err)
	}

	r, _ := ApiRequest("POST", "/article", bytes.NewBuffer(jsonBody))

	var response article.Article
	bd, err := io.ReadAll(r.Body)
	if err != nil {
		t.Fatal(err)
	}

	err = json.Unmarshal(bd, &response)
	if err != nil {
		t.Fatal(err)
	}

	assert.Equal(t, http.StatusOK, r.StatusCode)
	assert.Equal(t, "Test Title", response.Title)
	assert.Equal(t, "Test Body", response.Body)
}

var TestCreateArticleFailTitleMissing = func(t *testing.T) {
	jsonBody, err := json.Marshal(map[string]string{
		"body": "Test Body",
	})
	if err != nil {
		t.Fatal(err)
	}

	r, _ := ApiRequest("POST", "/article", bytes.NewBuffer(jsonBody))

	assert.Equal(t, http.StatusBadRequest, r.StatusCode)
}

var TestCreateArticleTitleTooShort = func(t *testing.T) {
	jsonBody, err := json.Marshal(map[string]string{
		"title": "Te",
		"body":  "Test Body",
	})
	if err != nil {
		t.Fatal(err)
	}

	r, _ := ApiRequest("POST", "/article", bytes.NewBuffer(jsonBody))

	assert.Equal(t, http.StatusBadRequest, r.StatusCode)
}

var TestGetArticleSuccess = func(t *testing.T) {
	var createdArticle article.Article
	var articleToCreate = article.Article{
		Title: "Test Title",
		Body:  "Test Body",
	}
	db := GetDb()
	db.Create(&articleToCreate).Scan(&createdArticle)

	r, _ := ApiRequest("GET", "/article/"+strconv.Itoa(int(createdArticle.ID)), nil)

	var response article.Article
	bd, err := io.ReadAll(r.Body)
	if err != nil {
		t.Fatal(err)
	}

	err = json.Unmarshal(bd, &response)
	if err != nil {
		t.Fatal(err)
	}

	assert.Equal(t, http.StatusOK, r.StatusCode)
	assert.Equal(t, createdArticle.ID, response.ID)
	assert.Equal(t, createdArticle.Title, response.Title)
	assert.Equal(t, createdArticle.Body, response.Body)
}

var TestGetAllArticlesSuccess = func(t *testing.T) {
	var createdArticle article.Article
	var articleToCreate = article.Article{
		Title: "Test Title",
		Body:  "Test Body",
	}
	db := GetDb()
	db.Create(&articleToCreate).Scan(&createdArticle)

	r, _ := ApiRequest("GET", "/article", nil)

	var response []article.Article
	bd, err := io.ReadAll(r.Body)
	if err != nil {
		t.Fatal(err)
	}

	err = json.Unmarshal(bd, &response)
	if err != nil {
		t.Fatal(err)
	}

	assert.Equal(t, http.StatusOK, r.StatusCode)
	assert.Equal(t, createdArticle.Title, response[0].Title)
	assert.Equal(t, createdArticle.Body, response[0].Body)
}

var TestArticleCreate = func(t *testing.T) {
	t.Run("Should return an article with the given title and body", TestCreateArticleSuccess)
	t.Run("Should return an error if the title is missing", TestCreateArticleFailTitleMissing)
	t.Run("Should return an error if the title is too short", TestCreateArticleTitleTooShort)
}

var TestArticleGet = func(t *testing.T) {
	t.Run("Should return an article with the given id", TestGetArticleSuccess)
}

var TestArticleGetAll = func(t *testing.T) {
	t.Run("Should return all articles", TestGetAllArticlesSuccess)
}

func TestArticle(t *testing.T) {
	StartServerIfNotAlready()
	WaitForServer()

	t.Run("Create", TestArticleCreate)
	t.Run("Get", TestArticleGet)
	t.Run("GetAll", TestArticleGetAll)
}