package engine

import (
	"context"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/local/glpi-neural-brain/internal/activity"
	"github.com/local/glpi-neural-brain/internal/config"
	"github.com/local/glpi-neural-brain/internal/research"
)

func TestResearchDiagnosticPublishesVisibleEvents(t *testing.T) {
	searx := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		_, _ = w.Write([]byte(`{"results":[{"title":"ZFS history","url":"https://example.test/zfs","content":"Timeline evidence"}]}`))
	}))
	defer searx.Close()

	broker := activity.New(20)
	eng := &Engine{
		Cfg:      config.Config{ResearchEnabled: true},
		Research: research.New(searx.URL),
		Broker:   broker,
	}
	result, err := eng.TestResearch(context.Background(), "zfs timeline", 4)
	if err != nil {
		t.Fatal(err)
	}
	if !result.OK || len(result.Results) != 1 || !result.Diagnostic.OK {
		t.Fatalf("unexpected result: %+v", result)
	}
	events := broker.Recent()
	if len(events) != 2 || events[0].Type != "research.test.started" || events[1].Type != "research.test.results" {
		t.Fatalf("unexpected events: %+v", events)
	}
	if events[1].Metadata["result_count"] != 1 {
		t.Fatalf("result count missing from event: %+v", events[1].Metadata)
	}
}

func TestResearchDiagnosticIncludesFailureReason(t *testing.T) {
	searx := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusForbidden)
		_, _ = w.Write([]byte("json disabled"))
	}))
	defer searx.Close()

	broker := activity.New(20)
	eng := &Engine{
		Cfg:      config.Config{ResearchEnabled: true},
		Research: research.New(searx.URL),
		Broker:   broker,
	}
	result, err := eng.TestResearch(context.Background(), "zfs timeline", 4)
	if err == nil {
		t.Fatal("expected failure")
	}
	if result.Diagnostic.ErrorKind != "http_status" || result.Diagnostic.HTTPStatus != http.StatusForbidden {
		t.Fatalf("unexpected diagnostic: %+v", result.Diagnostic)
	}
	events := broker.Recent()
	if len(events) != 2 || events[1].Type != "research.test.failed" {
		t.Fatalf("unexpected events: %+v", events)
	}
	if events[1].Metadata["error_kind"] != "http_status" || events[1].Metadata["searxng_http_status"] != http.StatusForbidden {
		t.Fatalf("failure details missing: %+v", events[1].Metadata)
	}
}