package stack

import (
	"os"
	"path/filepath"
	"testing"

	"gitea.oxpoe.qzz.io/oxpoe/tia-love/internal/docker"
)

func TestScanFS(t *testing.T) {
	root := t.TempDir()
	mk := func(rel string) string {
		p := filepath.Join(root, rel)
		if err := os.MkdirAll(filepath.Dir(p), 0o755); err != nil {
			t.Fatal(err)
		}
		if err := os.WriteFile(p, []byte("services: {}\n"), 0o644); err != nil {
			t.Fatal(err)
		}
		return p
	}
	mk("webapp/compose.yaml")
	mk("db/docker-compose.yml")
	mk("legacy/docker-compose.yaml")
	mk("modern/compose.yml")
	_ = os.MkdirAll(filepath.Join(root, "bukan-stack"), 0o755)                   // folder tanpa compose
	_ = os.WriteFile(filepath.Join(root, "file-nyasar.yaml"), []byte(""), 0o644) // file, bukan dir

	stacks, err := ScanFS(root)
	if err != nil {
		t.Fatalf("ScanFS: %v", err)
	}
	if len(stacks) != 4 {
		t.Fatalf("harusnya 4 stack, dapat %d: %+v", len(stacks), stacks)
	}
	// terurut nama
	want := []string{"db", "legacy", "modern", "webapp"}
	for i, s := range stacks {
		if s.Name != want[i] {
			t.Fatalf("urutan/nama salah: %v", stacks)
		}
		if s.Status != StatusCreatedFile {
			t.Fatalf("status awal harus CREATED_FILE: %+v", s)
		}
	}
	// folder tidak ada → kosong tanpa error
	if got, err := ScanFS(filepath.Join(root, "tidak-ada")); err != nil || len(got) != 0 {
		t.Fatalf("folder tidak ada: %v %v", got, err)
	}
}

func TestReconcile(t *testing.T) {
	stacks := []Stack{
		{Name: "web", Status: StatusCreatedFile},
		{Name: "db", Status: StatusCreatedFile},
		{Name: "other", Status: StatusCreatedFile},
	}
	projects := []docker.ComposeProject{
		{Name: "web", Status: "running(2)"},
		{Name: "db", Status: "exited(1)"},
		{Name: "asing", Status: "running(5)"}, // tidak ada di disk → diabaikan
	}
	out := Reconcile(stacks, projects)
	if out[0].Status != StatusRunning || out[1].Status != StatusExited {
		t.Fatalf("overlay salah: %+v", out)
	}
	if out[2].Status != StatusCreatedFile {
		t.Fatalf("stack tak dikenal harus tetap CREATED_FILE: %+v", out[2])
	}
}

func TestParseComposeStatus(t *testing.T) {
	cases := map[string]Status{
		"running(2)": StatusRunning,
		"exited(0)":  StatusExited,
		"created":    StatusCreatedStack,
		"restarting": StatusUnknown,
	}
	for in, want := range cases {
		if got := parseComposeStatus(in); got != want {
			t.Errorf("%q → %v, mau %v", in, got, want)
		}
	}
}