package hello

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

	"gitlab.hive-brain.de/MDietermann/Archduino/internal/engine"
)

func TestHelloFullLifecycle(t *testing.T) {
	path := filepath.Join(t.TempDir(), "hello.ok")
	m := Module{Path: path}
	ctx := context.Background()

	st, err := m.Detect(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if st.(state).Present {
		t.Fatal("marker should be absent on fresh tmpdir")
	}

	plan, err := m.Plan(ctx, st)
	if err != nil {
		t.Fatal(err)
	}
	if plan.IsEmpty() {
		t.Fatal("plan should have one action")
	}

	if err := m.Apply(ctx, plan, engine.NewBufferedReporter()); err != nil {
		t.Fatal(err)
	}
	if err := m.Verify(ctx); err != nil {
		t.Fatal(err)
	}

	st2, _ := m.Detect(ctx)
	if !st2.(state).Present {
		t.Fatal("marker should be present after apply")
	}

	plan2, _ := m.Plan(ctx, st2)
	if !plan2.IsEmpty() {
		t.Fatal("second plan should be empty (idempotent)")
	}

	data, err := os.ReadFile(path)
	if err != nil {
		t.Fatal(err)
	}
	if string(data) != markerContent {
		t.Fatalf("content = %q", data)
	}
}