fix: update OpenCode plugin integration

cmd/elydora/plugins/opencode_test.go

@@ -0,0 +1,138 @@
+package plugins
+
+import (
+	"encoding/json"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+func runOpenCodeModule(t *testing.T, modulePath string, scriptBody string) string {
+	t.Helper()
+	nodeBinary, err := exec.LookPath("node")
+	if err != nil {
+		t.Skip("Node.js is required to execute generated OpenCode plugins")
+	}
+	moduleURL := "file:///" + filepath.ToSlash(modulePath)
+	moduleJSON, err := json.Marshal(moduleURL)
+	if err != nil {
+		t.Fatalf("marshal module URL: %v", err)
+	}
+	script := "const pluginModule = await import(" + string(moduleJSON) + ");\n" + scriptBody
+	cmd := exec.Command(nodeBinary, "--input-type=module", "--eval", script)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("execute generated plugin: %v\n%s", err, output)
+	}
+	return string(output)
+}
+
+func writeOpenCodeModule(t *testing.T, hookPath string, guardPath string) string {
+	t.Helper()
+	modulePath := filepath.Join(t.TempDir(), "elydora-audit.mjs")
+	if err := os.WriteFile(modulePath, []byte(buildOpenCodePlugin(hookPath, guardPath)), 0600); err != nil {
+		t.Fatalf("write generated plugin: %v", err)
+	}
+	return modulePath
+}
+
+func TestOpenCodePluginUsesCurrentAPIAndBlocksFrozenAgent(t *testing.T) {
+	tempDir := t.TempDir()
+	guardPath := filepath.Join(tempDir, "guard.cjs")
+	if err := os.WriteFile(
+		guardPath,
+		[]byte("process.stderr.write('Agent is frozen by Elydora.'); process.exit(2);\n"),
+		0600,
+	); err != nil {
+		t.Fatalf("write guard: %v", err)
+	}
+	modulePath := writeOpenCodeModule(t, filepath.Join(tempDir, "hook.cjs"), guardPath)
+
+	runOpenCodeModule(t, modulePath, `
+const hooks = await pluginModule.ElydoraAuditPlugin({ project: { name: 'project' } });
+if (typeof hooks['tool.execute.before'] !== 'function') process.exit(10);
+if (typeof hooks['tool.execute.after'] !== 'function') process.exit(11);
+try {
+  await hooks['tool.execute.before'](
+    { tool: 'bash', sessionID: 'session-1', callID: 'call-1' },
+    { args: { command: 'echo test' } },
+  );
+  process.exit(12);
+} catch (error) {
+  if (!String(error.message).includes('Agent is frozen by Elydora')) process.exit(13);
+}
+`)
+}
+
+func TestOpenCodePluginForwardsToolEvent(t *testing.T) {
+	tempDir := t.TempDir()
+	capturePath := filepath.Join(tempDir, "captured-event.json")
+	hookPath := filepath.Join(tempDir, "hook.cjs")
+	captureJSON, err := json.Marshal(capturePath)
+	if err != nil {
+		t.Fatalf("marshal capture path: %v", err)
+	}
+	hookScript := `
+const fs = require('node:fs');
+const chunks = [];
+process.stdin.on('data', (chunk) => chunks.push(chunk));
+process.stdin.on('end', () => fs.writeFileSync(` + string(captureJSON) + `, Buffer.concat(chunks)));
+`
+	if err := os.WriteFile(hookPath, []byte(hookScript), 0600); err != nil {
+		t.Fatalf("write hook: %v", err)
+	}
+	modulePath := writeOpenCodeModule(t, hookPath, filepath.Join(tempDir, "guard.cjs"))
+
+	runOpenCodeModule(t, modulePath, `
+const hooks = await pluginModule.ElydoraAuditPlugin({ project: { name: 'project' } });
+await hooks['tool.execute.after'](
+  {
+    tool: 'bash',
+    sessionID: 'session-1',
+    callID: 'call-1',
+    args: { command: 'echo test' },
+  },
+  { title: 'Shell', output: 'test' },
+);
+`)
+
+	deadline := time.Now().Add(3 * time.Second)
+	for time.Now().Before(deadline) {
+		if _, err := os.Stat(capturePath); err == nil {
+			break
+		}
+		time.Sleep(20 * time.Millisecond)
+	}
+	payload, err := os.ReadFile(capturePath)
+	if err != nil {
+		t.Fatalf("read captured event: %v", err)
+	}
+	var event map[string]any
+	if err := json.Unmarshal(payload, &event); err != nil {
+		t.Fatalf("decode captured event: %v", err)
+	}
+	if event["tool_name"] != "bash" || event["session_id"] != "session-1" {
+		t.Fatalf("unexpected captured event: %s", payload)
+	}
+	toolInput, ok := event["tool_input"].(map[string]any)
+	if !ok || toolInput["command"] != "echo test" {
+		t.Fatalf("unexpected tool input: %v", event["tool_input"])
+	}
+}
+
+func TestOpenCodePluginUsesGlobalConfigDirectory(t *testing.T) {
+	homeDir := t.TempDir()
+	t.Setenv("HOME", homeDir)
+	t.Setenv("USERPROFILE", homeDir)
+	path, err := (&OpenCodePlugin{}).configPath()
+	if err != nil {
+		t.Fatalf("resolve config path: %v", err)
+	}
+	wantSuffix := filepath.Join(".config", "opencode", "plugins", "elydora-audit.mjs")
+	if !strings.HasSuffix(path, wantSuffix) {
+		t.Fatalf("config path = %q, want suffix %q", path, wantSuffix)
+	}
+}