package api

import (
	"log"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
	"time"

	"github.com/DATA-DOG/go-sqlmock"
	"github.com/labstack/echo/v4"
)

func TestGetTransactions(t *testing.T) {
	db, mock, err := sqlmock.New()
	if err != nil {
		t.Fatal(err)
	}

	e := echo.New()
	handlers := ServerImpl{db}
	RegisterHandlers(e, &handlers)

	t.Run("when successful", func(t *testing.T) {
		rec := httptest.NewRecorder()
		req := httptest.NewRequest(http.MethodGet, "/transactions", nil)

		date := time.Now()
		rows := mock.NewRows([]string{"category", "date", "description", "id", "amount"}).
			AddRow(nil, date, "#1", 1, 1000).
			AddRow("expense", date, "#2", 2, -1000)
		mock.ExpectQuery("SELECT t.category, t.date, t.description, t.id, tc.amount FROM pfbudget.transactions t LEFT JOIN pfbudget.transactions_categorized tc ON t.id = tc.id").WillReturnRows(rows)

		ctx := e.NewContext(req, rec)
		err := handlers.GetTransactions(ctx, GetTransactionsParams{})
		if err != nil {
			t.Error(err)
		}
		if rec.Code != http.StatusOK {
			t.Error(rec.Code)
		}

		expected := `[
			{
				"date":"` + date.Format(time.DateOnly) + `",
				"description": "#1",
				"id":1,
				"value":1000
			},
			{
				"category": "expense",
				"date":"` + date.Format(time.DateOnly) + `",
				"description": "#2",
				"id":2,
				"value":-1000
			}
		]`
		expected = strings.Join(strings.Fields(expected), "")
		log.Println(expected)
		if ret := strings.TrimRight(rec.Body.String(), "\n"); ret != expected {
			t.Error(ret, expected)
		}
	})
}