package build

import (
	"bytes"
	"os"
	"os/exec"
	"path/filepath"
	"strings"
	"testing"
)

// testAppKey is a fixed, valid app key (base64 of 32 bytes) for hermetic tests.
const testAppKey = "c3VtbWVyY21zLXRlc3Qta2V5LTMyLWJ5dGVzLWxvbmc="

// TestNewAppSmoke writes an app next to a symlinked framework checkout,
// builds it and lists the starter route.
func TestNewAppSmoke(t *testing.T) {
	if testing.Short() {
		t.Skip("runs go mod tidy and go build")
	}
	repo, err := filepath.Abs(filepath.Join("..", ".."))
	if err != nil {
		t.Fatal(err)
	}
	parent := t.TempDir()
	fw := filepath.Join(parent, "summercms")
	if err := os.Symlink(repo, fw); err != nil {
		t.Fatal(err)
	}
	ctx := t.Context()
	var log bytes.Buffer
	dir, err := NewApp(ctx, NewOptions{Name: "demo", Parent: parent, Framework: fw, AppKey: testAppKey, NoGit: true}, &log)
	if err != nil {
		t.Fatalf("NewApp: %v\n%s", err, log.String())
	}
	if want := filepath.Join(parent, "sm-demo-app"); dir != want {
		t.Fatalf("dir = %s, want %s", dir, want)
	}

	mod, err := os.ReadFile(filepath.Join(dir, "go.mod"))
	if err != nil {
		t.Fatal(err)
	}
	if !bytes.Contains(mod, []byte("replace git.golem15.com/golem15/summercms => ../summercms")) {
		t.Fatalf("go.mod lacks the relative framework replace:\n%s", mod)
	}
	work, err := os.ReadFile(filepath.Join(dir, "go.work"))
	if err != nil {
		t.Fatal(err)
	}
	if !bytes.Contains(work, []byte("./plugins/demo")) {
		t.Fatalf("go.work lacks ./plugins/demo:\n%s", work)
	}
	for _, line := range strings.Split(string(work), "\n") {
		if strings.HasPrefix(strings.TrimSpace(line), "/") {
			t.Fatalf("go.work has an absolute path %q:\n%s", line, work)
		}
	}

	var buildOut bytes.Buffer
	if err := App(ctx, dir, &buildOut); err != nil {
		t.Fatalf("build: %v\n%s", err, buildOut.String())
	}
	cmd := exec.CommandContext(ctx, filepath.Join(dir, "bin", "demo"), "route:list")
	cmd.Dir = dir
	listed, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("route:list: %v\n%s", err, listed)
	}
	for _, want := range []string{"/{$}", "golem15.demo"} {
		if !bytes.Contains(listed, []byte(want)) {
			t.Fatalf("route:list lacks %q:\n%s", want, listed)
		}
	}
}