package tests

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

	tests "github.com/jfraeys/fetch_ml/tests/fixtures"
)

// TestActualPodmanSync performs sync to a temporary directory for testing
// This test uses a temporary directory instead of podman/workspace
func TestActualPodmanSync(t *testing.T) {
	if testing.Short() {
		t.Skip("Skipping actual podman sync in short mode")
	}

	tempDir := t.TempDir()
	podmanDir := filepath.Join(tempDir, "workspace")

	// Ensure workspace exists
	if err := os.MkdirAll(podmanDir, 0755); err != nil {
		t.Fatalf("Failed to create test workspace: %v", err)
	}

	// Use fixtures for examples directory operations
	examplesDir := tests.NewExamplesDir(filepath.Join("..", "fixtures", "examples"))

	// Get all example projects
	projects, err := examplesDir.ListProjects()
	if err != nil {
		t.Fatalf("Failed to list projects: %v", err)
	}

	for _, projectName := range projects {
		t.Run("Sync_"+projectName, func(t *testing.T) {
			// Remove existing destination
			dstDir := filepath.Join(podmanDir, projectName)
			if err := os.RemoveAll(dstDir); err != nil {
				t.Fatalf("Failed to remove existing %s: %v", projectName, err)
			}

			// Copy project
			if err := examplesDir.CopyProject(projectName, dstDir); err != nil {
				t.Fatalf("Failed to copy %s to test workspace: %v", projectName, err)
			}

			// Verify copy
			requiredFiles := []string{"train.py", "requirements.txt", "README.md"}
			for _, file := range requiredFiles {
				dstFile := filepath.Join(dstDir, file)
				if _, err := os.Stat(dstFile); os.IsNotExist(err) {
					t.Errorf("Missing file %s in copied project %s", file, projectName)
				}
			}

			t.Logf("Successfully synced %s to test workspace", projectName)
		})
	}

	t.Logf("Test workspace sync completed")
}

// TestPodmanWorkspaceValidation validates example projects structure
func TestPodmanWorkspaceValidation(t *testing.T) {
	// Use temporary directory for validation
	tempDir := t.TempDir()
	podmanDir := filepath.Join(tempDir, "workspace")
	examplesDir := filepath.Join("..", "fixtures", "examples")

	// Copy examples to temp workspace for validation
	if err := os.MkdirAll(podmanDir, 0755); err != nil {
		t.Fatalf("Failed to create test workspace: %v", err)
	}

	// Copy examples to temp workspace
	entries, err := os.ReadDir(examplesDir)
	if err != nil {
		t.Fatalf("Failed to read examples directory: %v", err)
	}
	for _, entry := range entries {
		if !entry.IsDir() {
			continue
		}
		srcDir := filepath.Join(examplesDir, entry.Name())
		dstDir := filepath.Join(podmanDir, entry.Name())
		if err := tests.CopyDir(srcDir, dstDir); err != nil {
			t.Fatalf("Failed to copy %s: %v", entry.Name(), err)
		}
	}

	// Expected projects
	expectedProjects := []string{
		"standard_ml_project",
		"sklearn_project",
		"pytorch_project",
		"tensorflow_project",
		"xgboost_project",
		"statsmodels_project",
	}

	// Check each expected project
	for _, project := range expectedProjects {
		t.Run("Validate_"+project, func(t *testing.T) {
			projectDir := filepath.Join(podmanDir, project)

			// Check project directory exists
			if _, err := os.Stat(projectDir); os.IsNotExist(err) {
				t.Errorf("Expected project %s not found in test workspace", project)
				return
			}

			// Check required files
			requiredFiles := []string{"train.py", "requirements.txt", "README.md"}
			for _, file := range requiredFiles {
				filePath := filepath.Join(projectDir, file)
				if _, err := os.Stat(filePath); os.IsNotExist(err) {
					t.Errorf("Missing required file %s in project %s", file, project)
				}
			}
		})
	}

	t.Logf("Test workspace validation completed")
}