package deploy_test

import (
	"context"
	"database/sql"
	"log/slog"
	"os"
	"testing"

	"sneak.berlin/go/upaas/internal/database"
	"sneak.berlin/go/upaas/internal/docker"
	"sneak.berlin/go/upaas/internal/models"
	"sneak.berlin/go/upaas/internal/service/deploy"
)

func TestBuildContainerOptionsUsesImageID(t *testing.T) {
	t.Parallel()

	db := database.NewTestDatabase(t)

	app := models.NewApp(db)
	app.Name = "myapp"

	err := app.Save(context.Background())
	if err != nil {
		t.Fatalf("failed to save app: %v", err)
	}

	log := slog.New(slog.NewTextHandler(os.Stderr, nil))
	svc := deploy.NewTestService(log)

	const expectedImageID = docker.ImageID("sha256:abc123def456")

	opts, err := svc.BuildContainerOptionsExported(context.Background(), app, expectedImageID)
	if err != nil {
		t.Fatalf("buildContainerOptions returned error: %v", err)
	}

	if opts.Image != expectedImageID.String() {
		t.Errorf("expected Image=%q, got %q", expectedImageID, opts.Image)
	}

	if opts.Name != "upaas-myapp" {
		t.Errorf("expected Name=%q, got %q", "upaas-myapp", opts.Name)
	}
}

func TestBuildContainerOptionsHealthcheckSet(t *testing.T) {
	t.Parallel()

	db := database.NewTestDatabase(t)

	app := models.NewApp(db)
	app.Name = "hc-app"
	app.HealthcheckCommand = sql.NullString{
		String: "curl -f http://localhost:8080/healthz || exit 1",
		Valid:  true,
	}

	err := app.Save(context.Background())
	if err != nil {
		t.Fatalf("failed to save app: %v", err)
	}

	log := slog.New(slog.NewTextHandler(os.Stderr, nil))
	svc := deploy.NewTestService(log)

	opts, err := svc.BuildContainerOptionsExported(
		context.Background(), app, "sha256:test",
	)
	if err != nil {
		t.Fatalf("buildContainerOptions returned error: %v", err)
	}

	expected := "curl -f http://localhost:8080/healthz || exit 1"
	if opts.HealthcheckCommand != expected {
		t.Errorf("expected HealthcheckCommand=%q, got %q", expected, opts.HealthcheckCommand)
	}
}

func TestBuildContainerOptionsHealthcheckEmpty(t *testing.T) {
	t.Parallel()

	db := database.NewTestDatabase(t)

	app := models.NewApp(db)
	app.Name = "no-hc-app"

	err := app.Save(context.Background())
	if err != nil {
		t.Fatalf("failed to save app: %v", err)
	}

	log := slog.New(slog.NewTextHandler(os.Stderr, nil))
	svc := deploy.NewTestService(log)

	opts, err := svc.BuildContainerOptionsExported(
		context.Background(), app, "sha256:test",
	)
	if err != nil {
		t.Fatalf("buildContainerOptions returned error: %v", err)
	}

	if opts.HealthcheckCommand != "" {
		t.Errorf("expected empty HealthcheckCommand, got %q", opts.HealthcheckCommand)
	}
}