package main

import (
	"bytes"
	"io"
	"log/slog"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func newTestApplication() application {
	cfg := config{env: "test"}
	return application{config: cfg, logger: slog.New(slog.NewTextHandler(io.Discard, nil))}

}

func TestHealthRoute(t *testing.T) {
	respRec := httptest.NewRecorder()

	r, err := http.NewRequest(http.MethodGet, "/v1/healthcheck", nil)
	if err != nil {
		t.Fatal(err)
	}

	app := newTestApplication()
	health := http.HandlerFunc(app.healthCheckHandler)
	health.ServeHTTP(respRec, r)

	resp := respRec.Result()

	if resp.StatusCode != http.StatusOK {
		t.Fatalf("Got status code %q, wanted status code %q", resp.StatusCode, http.StatusOK)
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		t.Fatal(err)
	}

	body = bytes.TrimSpace(body)

	if !strings.Contains(string(body), "environment: test") {
		t.Fatalf("Did not find: %q in response body", "environment: test")
	}
}

func TestCreateMovieHandler(t *testing.T) {
	respRec := httptest.NewRecorder()
	want := "Resource created"

	r, err := http.NewRequest(http.MethodPost, "/v1/movies", nil)
	if err != nil {
		t.Fatal(err)
	}

	app := newTestApplication()
	movie := http.HandlerFunc(app.createMovieHandler)
	movie.ServeHTTP(respRec, r)

	resp := respRec.Result()

	if resp.StatusCode != http.StatusAccepted {
		t.Fatalf("Got status code %q, wanted status code %q", resp.StatusCode, http.StatusOK)
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		t.Fatal(err)
	}

	body = bytes.TrimSpace(body)

	if !strings.Contains(string(body), want) {
		t.Fatalf("Did not find: %q in response body", want)
	}
}

func TestGetAllMoviesHandler(t *testing.T) {
	respRec := httptest.NewRecorder()
	want := "Movies List"

	r, err := http.NewRequest(http.MethodGet, "/v1/movies", nil)
	if err != nil {
		t.Fatal(err)
	}

	app := newTestApplication()
	movie := http.HandlerFunc(app.getAllMoviesHandler)
	movie.ServeHTTP(respRec, r)

	resp := respRec.Result()

	if resp.StatusCode != http.StatusOK {
		t.Fatalf("Got status code %q, wanted status code %q", resp.StatusCode, http.StatusOK)
	}
	defer resp.Body.Close()
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		t.Fatal(err)
	}

	body = bytes.TrimSpace(body)

	if !strings.Contains(string(body), want) {
		t.Fatalf("Did not find: %q in response body", want)
	}
}