package editor

import (
	"testing"
	"time"

	"pad/internal/io/pool/mock"
)

func TestOpenFileIntegration(t *testing.T) {
	// 1. Setup Logic
	mockFS := mock.NewFileSystem()
	filename := "/README.md"
	content := "Hello World"
	mockFS.AddFile(filename, []byte(content), time.Now())

	l := NewLogic(mockFS)
	go l.Run()
	defer l.Done()

	// Drain frameChan to prevent deadlocks
	go func() {
		for range l.FrameChan() {
		}
	}()
	
	TheState = l.state // Initialize global state

	// 2. Open File
	// OpenFile dispatches the task to openFileChan, which Run() will consume
	OpenFile(filename)
	
	// 3. Process the Result
	// We wait for the state to update, which happens when ReadChunkTask completes
	success := false
	for i := 0; i < 20; i++ {
		if l.state.Editor.GetBuffer() == content {
			success = true
			break
		}
		time.Sleep(100 * time.Millisecond)
	}

	// 4. Assert
	if !success {
		t.Errorf("Expected content %q, got %q", content, l.state.Editor.Buffer)
	}
}