feat: add target deletion functionality with cascaded removal of associated jobs and tasks

internal/ui/handlers_test.go

@@ -0,0 +1,84 @@
+package ui
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/hireme/hireme/internal/config"
+	"github.com/hireme/hireme/internal/db"
+)
+
+func TestHandleDeleteTarget(t *testing.T) {
+	tempDir := t.TempDir()
+	dbPath := filepath.Join(tempDir, "test_ui_delete_target.db")
+	yamlPath := filepath.Join(tempDir, "targets.yaml")
+
+	initialYAML := `targets:
+  - name: "Test Target"
+    target_url: "https://example.com/test-jobs"
+    platform: "google_jobs"
+    is_active: true
+`
+	if err := osWriteFile(yamlPath, []byte(initialYAML)); err != nil {
+		t.Fatalf("failed to write yaml: %v", err)
+	}
+
+	database, err := db.InitDB(dbPath)
+	if err != nil {
+		t.Fatalf("failed to init db: %v", err)
+	}
+	defer func() { _ = database.Close() }()
+
+	target, err := database.CreateTarget("Test Target", "https://example.com/test-jobs", "google_jobs")
+	if err != nil {
+		t.Fatalf("failed to create target: %v", err)
+	}
+
+	_, _, err = database.InsertRawJob("canon-ui-test", &target.ID, "Software Engineer", "Google", "Seattle", "https://example.com/job/1", "Go backend")
+	if err != nil {
+		t.Fatalf("failed to insert raw job: %v", err)
+	}
+
+	cfg := &config.Config{
+		TargetConfig: yamlPath,
+	}
+
+	server := NewServer(cfg, database, nil)
+	mux := http.NewServeMux()
+	server.RegisterRoutes(mux)
+
+	// Send POST /targets/{id}/delete
+	req := httptest.NewRequest("POST", "/targets/1/delete", nil)
+	w := httptest.NewRecorder()
+
+	mux.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected status 200, got %d: %s", w.Code, w.Body.String())
+	}
+
+	// Verify target table in response does not contain the deleted target
+	body := w.Body.String()
+	if strings.Contains(body, "Test Target") {
+		t.Errorf("expected target list in response to not contain 'Test Target', got:\n%s", body)
+	}
+
+	// Verify DB is empty of targets and jobs
+	targets, err := database.GetAllTargets()
+	if err != nil || len(targets) != 0 {
+		t.Errorf("expected 0 targets in DB, got %v (err: %v)", targets, err)
+	}
+
+	jobs, err := database.GetJobsWithAnalysis()
+	if err != nil || len(jobs) != 0 {
+		t.Errorf("expected 0 jobs in DB, got %v (err: %v)", jobs, err)
+	}
+}
+
+func osWriteFile(path string, data []byte) error {
+	return os.WriteFile(path, data, 0644)
+}