import { Command } from 'commander';
import { BaseCommand } from './BaseCommand';
import { GenerateCommitMessageUseCaseImpl } from '../../domain/usecases/GenerateCommitMessageUseCase';

export class CommitMessageCommand extends BaseCommand {
  constructor() {
    super('commit-msg', 'Generate commit message suggestions');
    
    this.option('--style <style>', 'Commit message style (conventional, simple, detailed)', 'conventional')
         .option('--max-length <length>', 'Maximum length for subject line', '50')
         .option('--include-body', 'Include commit body')
         .option('--language <language>', 'Language for commit message', 'en');
  }

  protected async execute(options: any, command: Command): Promise<void> {
    const useCase = new GenerateCommitMessageUseCaseImpl(
      this.gitAdapter,
      this.llmAdapter,
      this.outputAdapter
    );

    const commitOptions: any = {
      baseRef: options.baseRef,
      headRef: options.headRef,
      includeStaged: options.staged,
      includeUnstaged: options.unstaged,
      filePatterns: this.parseFilePatterns(options.filePatterns) || [],
      excludePatterns: this.parseExcludePatterns(options.excludePatterns) || [],
      outputFormat: this.getOutputFormat(options) as 'json' | 'markdown' | 'console' | 'file',
      style: options.style,
      maxLength: options.maxLength ? parseInt(options.maxLength) : undefined,
      includeBody: options.includeBody,
    };

    const outputPath = this.getOutputPath(options);
    if (outputPath) {
      commitOptions.outputPath = outputPath;
    }

    if (this.isVerbose(options)) {
      console.log('Generating commit message...');
      console.log('Options:', commitOptions);
    }

    try {
      const commitMessage = await useCase.execute(commitOptions);
      
      if (this.isVerbose(options)) {
        console.log('Commit message generated successfully.');
      }
    } catch (error) {
      throw new Error(`Commit message generation failed: ${error instanceof Error ? error.message : 'Unknown error'}`);
    }
  }
}