package cmd

import (
	"os"
	"strings"
	"testing"

	"gmgauthier.com/grokkit/internal/grok"
)

func TestEditCommand(t *testing.T) {
	// Create temporary test file
	tmpfile, err := os.CreateTemp("", "test_edit_*.go")
	if err != nil {
		t.Fatal(err)
	}
	defer os.Remove(tmpfile.Name())

	original := []byte("package main\n\nfunc hello() {}\n")
	if err := os.WriteFile(tmpfile.Name(), original, 0644); err != nil {
		t.Fatal(err)
	}

	// Test the core editing logic directly (non-interactive)
	instruction := "add a comment at the top"
	client := grok.NewClient()

	messages := []map[string]string{
		{"role": "system", "content": "Return ONLY the complete updated file content. The VERY FIRST LINE must be a comment starting with //."},
		{"role": "user", "content": "File: test.go\n\nOriginal content:\n" + string(original) + "\n\nTask: " + instruction},
	}

	raw := client.StreamSilent(messages, "grok-4-1-fast-non-reasoning")
	newContent := grok.CleanCodeResponse(raw)

	// Apply the result (this is what the real command does after confirmation)
	if err := os.WriteFile(tmpfile.Name(), []byte(newContent), 0644); err != nil {
		t.Fatal(err)
	}

	// Verify
	content, _ := os.ReadFile(tmpfile.Name())
	if !strings.HasPrefix(strings.TrimSpace(string(content)), "//") {
		t.Errorf("Expected a comment at the very top. Got:\n%s", content)
	}
}