package bootstrap

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

	"github.com/Pingu-Studio/MaidnCLI/internal/config"
)

func onboardingConfig() config.Config {
	return config.Config{
		Git:  config.GitConfig{BaseURL: "https://git.example.test", Owner: "test-org-2"},
		Flux: config.FluxConfig{Branch: "main", RepoName: "cluster", ManifestsRepo: "manifests", ClusterDomain: "example.test"},
		Delivery: config.DeliveryConfig{
			AppName: "web-ui", AppRepoURL: "https://git.example.test/test-org-2/web-ui.git", AppRepoRef: "main", ProductionBranch: "production",
			ImageRepository: "registry.example.test/test-org-2/web-ui", BuildOutputDirectory: "dist", BuildConfiguration: "production",
			WebhookHostname: "tekton.example.test", WebhookPath: "/",
		},
	}
}

func TestGenerateAppDeliveryReplacesOnlyKnownGeneratedFiles(t *testing.T) {
	dir := t.TempDir()
	tektonDir := filepath.Join(dir, ".tekton")
	if err := os.Mkdir(tektonDir, 0755); err != nil {
		t.Fatal(err)
	}
	for _, name := range []string{"kustomization.yaml", "pipeline.yaml"} {
		if err := os.WriteFile(filepath.Join(tektonDir, name), []byte("old generated content\n"), 0644); err != nil {
			t.Fatal(err)
		}
	}
	if err := GenerateAppDelivery(dir, onboardingConfig()); err != nil {
		t.Fatal(err)
	}
	pipeline, err := os.ReadFile(filepath.Join(tektonDir, "pipeline.yaml"))
	if err != nil || !strings.Contains(string(pipeline), "https://git.example.test/test-org-2/web-ui.git") {
		t.Fatalf("target-specific pipeline = %q, %v", pipeline, err)
	}
	if err := os.WriteFile(filepath.Join(tektonDir, "custom.yaml"), []byte("custom: true\n"), 0644); err != nil {
		t.Fatal(err)
	}
	if err := GenerateAppDelivery(dir, onboardingConfig()); err == nil || !strings.Contains(err.Error(), "unmanaged") {
		t.Fatalf("custom .tekton content was accepted: %v", err)
	}
}

func TestRegisterAppInClusterRendersManagedFluxSource(t *testing.T) {
	dir := t.TempDir()
	tektonDir := filepath.Join(dir, "base", "tekton")
	if err := os.MkdirAll(tektonDir, 0755); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(filepath.Join(tektonDir, "kustomization.yaml"), []byte("apiVersion: kustomize.config.k8s.io/v1beta1\nkind: Kustomization\nresources:\n"), 0644); err != nil {
		t.Fatal(err)
	}
	if err := RegisterAppInCluster(dir, onboardingConfig()); err != nil {
		t.Fatal(err)
	}
	registration, err := os.ReadFile(filepath.Join(tektonDir, "apps", "web-ui.yaml"))
	if err != nil || !strings.Contains(string(registration), "branch: maidn/delivery-web-ui") || !strings.Contains(string(registration), "secretRef:\n    name: forgejo-flux-credentials") || !strings.Contains(string(registration), "dependsOn:\n    - name: tekton-catalog") || !strings.Contains(string(registration), "path: ./.tekton") {
		t.Fatalf("registration = %q, %v", registration, err)
	}
	for path, resource := range map[string]string{filepath.Join(tektonDir, "kustomization.yaml"): "apps", filepath.Join(tektonDir, "apps", "kustomization.yaml"): "web-ui.yaml"} {
		content, err := os.ReadFile(path)
		if err != nil || !strings.Contains(string(content), resource) {
			t.Fatalf("Kustomization %s does not include %s: %q, %v", path, resource, content, err)
		}
	}
	if err := os.WriteFile(filepath.Join(tektonDir, "apps", "web-ui.yaml"), []byte("custom: true\n"), 0644); err != nil {
		t.Fatal(err)
	}
	if err := RegisterAppInCluster(dir, onboardingConfig()); err == nil || !strings.Contains(err.Error(), "conflicts") {
		t.Fatalf("unmanaged app registration was accepted: %v", err)
	}
}