import 'dart:io';

import 'package:brick_generator/file_system_utils.dart';
import 'package:brick_generator/models/brick_config.dart';
import 'package:brick_generator/shell.dart';
import 'package:brick_generator/yaml_reader.dart';
import 'package:path/path.dart' as path;

// Constants
const _bricks = 'bricks';
const _brickFolderLabel = '__brick__';
const _yamlFileName = 'brick_config.yaml';

Future<void> main(List<String> arguments) async {
  try {
    if (arguments.length != 1) {
      throw ArgumentError('Please entry exemple project path');
    }

    final projectPath = arguments[0];

    // Store options from yaml file
    final configs =
        YamlReader.readYamlFile(path.join(projectPath, _yamlFileName));
    final brickConfig = BrickConfig.from(configs);
    stdout.writeln('🍺 config retrieved');

    brickConfig?.checkFormat();

    // Define paths
    final sourcePath = path.join(
      projectPath,
      brickConfig!.pathToBrickify,
    );
    final targetPath = path.join(
      _bricks,
      brickConfig.brickName,
      _brickFolderLabel,
    );
    stdout.writeln('🍺 path defined');

    // Remove previously generated files
    final targetDir = Directory(targetPath);
    if (targetDir.existsSync()) {
      await targetDir.delete(recursive: true);
    }

    // create target folder
    await Shell.mkdir(targetPath);

    // Copy project files
    await Shell.cp(sourcePath, targetPath);
    stdout.writeln('🍺 files copied');

    // Convert values to variables
    await FileSystemUtils.convertValuesToVariablesInFolder(
        brickConfig, targetPath);
    stdout.writeln('🍺 values converted into variables');

    // Rename files and folders
    await FileSystemUtils.renamePathsInFolder(brickConfig, targetPath);
    stdout.writeln('🍺 folders and files renamed');

    await FileSystemUtils.deleteEmptyFolders(targetPath);
    stdout
      ..writeln('🍺 empty folders removed')
      ..writeln('✅ brick template available at $targetPath');
  } catch (_) {
    stdout.writeln('❌ ${_.toString()}');
  }
}