package movementtest

import (
	"net/http"
	"net/http/httptest"
	"regexp"
	"strings"
	"testing"

	movement "amadan.net/carlos/movement/internal/movement"
)

// hashedStylesheet is the fingerprinted URL shape the index page
// links: /static/tokens.<16 hex>.css.
var hashedStylesheet = regexp.MustCompile(`/static/tokens\.[0-9a-f]{16}\.css`)

func TestIndexRenders(t *testing.T) {
	rec := get(t, newApp(t), "/")
	if rec.Code != http.StatusOK {
		t.Fatalf("GET /: status %d, want 200", rec.Code)
	}
	// The heading comes from the copy table, not from the template, so this
	// asserts the wiring rather than the words. When copy review replaces
	// the placeholder, this test does not need to change — which is the
	// point of holding copy separately.
	if !strings.Contains(rec.Body.String(), movement.T("index.headline")) {
		t.Errorf("GET /: page is missing its heading:\n%s", rec.Body.String())
	}
}

func TestIndexLinksFingerprintedStylesheet(t *testing.T) {
	h := newApp(t)
	href := hashedStylesheet.FindString(get(t, h, "/").Body.String())
	if href == "" {
		t.Fatal("index page links no fingerprinted stylesheet")
	}
	rec := get(t, h, href)
	if rec.Code != http.StatusOK {
		t.Fatalf("GET %s: status %d, want 200", href, rec.Code)
	}
	if got := rec.Header().Get("Cache-Control"); got != "public, max-age=31536000, immutable" {
		t.Errorf("GET %s: Cache-Control = %q, want immutable year", href, got)
	}
}

// The bare name keeps working, just never long-cached — so a changed
// file always shows on an ordinary reload.
func TestBareAssetNameStaysFresh(t *testing.T) {
	rec := get(t, newApp(t), "/static/tokens.css")
	if rec.Code != http.StatusOK {
		t.Fatalf("GET /static/tokens.css: status %d, want 200", rec.Code)
	}
	if got := rec.Header().Get("Cache-Control"); got != "no-cache" {
		t.Errorf("Cache-Control = %q, want no-cache", got)
	}
}

// ErrorPage is what main.go points Options.ErrorPage at (and the seam
// to wire into Ctx.ErrorPage as handlers grow); called directly, it
// pins that a panic's page is the framework's error-page partial, not
// a stray net/http default.
func TestErrorPageRendersFrameworkPartial(t *testing.T) {
	rec := httptest.NewRecorder()
	movement.ErrorPage(rec, httptest.NewRequest(http.MethodGet, "/", nil), http.StatusInternalServerError, "abc123")
	if rec.Code != http.StatusInternalServerError {
		t.Fatalf("ErrorPage: status %d, want %d", rec.Code, http.StatusInternalServerError)
	}
	body := rec.Body.String()
	if !strings.Contains(body, "Something went wrong on our side") {
		t.Errorf("ErrorPage body missing the 500 title:\n%s", body)
	}
	if !strings.Contains(body, "abc123") {
		t.Errorf("ErrorPage body missing the ref:\n%s", body)
	}
}