package main

import (
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"os"
	"path/filepath"
	"testing"
)

func TestLoadProtectedBridgeURL(t *testing.T) {
	root := t.TempDir()
	path := filepath.Join(root, "agent_execution_bridge_url")
	if err := os.WriteFile(path, []byte("http://bridge.local\n"), 0o600); err != nil {
		t.Fatal(err)
	}
	if value, configured := loadProtectedBridgeURLFrom(root, path); !configured || value != "http://bridge.local" {
		t.Fatalf("protected bridge was not loaded: %q %v", value, configured)
	}
	if value, configured := loadProtectedBridgeURLFrom(root, filepath.Join(root, "missing")); configured || value != "" {
		t.Fatalf("missing bridge was accepted: %q %v", value, configured)
	}
	if value, configured := loadProtectedBridgeURLFrom(root, "/tmp/not-protected"); configured || value != "" {
		t.Fatalf("path outside protected root was accepted: %q %v", value, configured)
	}
}

func TestWorkerStatusReportsRecoveryOnlyWithoutExecutor(t *testing.T) {
	response := httptest.NewRecorder()
	workerStatusHandler(false).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/status", nil))
	var value workerStatusResponse
	if err := json.NewDecoder(response.Body).Decode(&value); err != nil {
		t.Fatal(err)
	}
	if response.Code != http.StatusOK || value.Ready || value.Mode != "recovery-only" || value.ExecutorConfigured {
		t.Fatalf("unexpected status: code=%d value=%+v", response.Code, value)
	}
}

func TestWorkerStatusReportsLocalExecutor(t *testing.T) {
	response := httptest.NewRecorder()
	workerStatusHandler(false, true).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/status", nil))
	var value workerStatusResponse
	if err := json.NewDecoder(response.Body).Decode(&value); err != nil {
		t.Fatal(err)
	}
	if response.Code != http.StatusOK || value.Ready || value.Mode != "local-executor" || !value.LocalFallback || !value.LocalExecutor {
		t.Fatalf("unexpected status: code=%d value=%+v", response.Code, value)
	}
	if len(value.Capabilities) != 1 || value.Capabilities[0] != "task-evaluation" {
		t.Fatalf("unexpected local capabilities: %+v", value.Capabilities)
	}
}

func TestWorkerStatusDoesNotCallLocalFallbackAnExternalExecutor(t *testing.T) {
	response := httptest.NewRecorder()
	workerStatusHandler(false, true).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/status", nil))
	var value workerStatusResponse
	if err := json.NewDecoder(response.Body).Decode(&value); err != nil {
		t.Fatal(err)
	}
	if value.ExecutorConfigured || value.Ready || !value.LocalFallback || !value.LocalExecutor || value.Mode != "local-executor" {
		t.Fatalf("local fallback was presented as external execution: %+v", value)
	}
}

func TestWorkerReadyzRequiresExecutor(t *testing.T) {
	response := httptest.NewRecorder()
	workerStatusHandler(false).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/readyz", nil))
	if response.Code != http.StatusServiceUnavailable {
		t.Fatalf("readyz status=%d", response.Code)
	}
	response = httptest.NewRecorder()
	workerStatusHandler(true).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/readyz", nil))
	if response.Code != http.StatusOK {
		t.Fatalf("configured readyz status=%d", response.Code)
	}
}