#!/usr/bin/env node

import { Command } from 'commander';
import { AppState, Config } from './types.js';
import { TuiEngine } from './tui.js';
import { validateConnection, normalizeUrl } from './api.js';
import { loadSavedConfig, saveGlobalConfig } from './config.js';
import chalk from 'chalk';

const program = new Command();

program
  .name('gitea-tui')
  .description('A premium CLI TUI Dashboard for exploring Gitea and Forgejo issues')
  .version('1.0.0')
  .option('-u, --url <url>', 'Forgejo/Gitea instance base URL (e.g. https://forgejo.freshbrewed.science)')
  .option('-i, --userid <userid>', 'Forgejo/Gitea user ID / username')
  .option('-r, --repo <owner/repo>', 'Repository path (e.g. owner/repo)')
  .option('-t, --token <token>', 'Personal Access Token (optional for public repositories)')
  .option('-s, --save', 'Save the provided settings to the global config file (~/.config/fjtui/fjtui.json)');

program.parse(process.argv);

const options = program.opts();

async function bootstrap() {
  const savedConfig = loadSavedConfig();

  const url = options.url || savedConfig.url || '';
  const userid = options.userid || savedConfig.userid || '';
  const token = options.token || savedConfig.token || '';
  const repo = options.repo || savedConfig.repo || '';

  // Initialize default state
  const state: AppState = {
    screen: 'setup',
    config: {
      url: '',
      token: null,
      userid: '',
      owner: '',
      repo: '',
    },
    issues: [],
    currentPage: 1,
    issuesPerPage: 15, // matches standard screen sizes perfectly
    totalIssuesCount: 0,
    loading: false,
    error: null,
    selectedIssueIndex: 0,
    searchQuery: '',
    stateFilter: 'open',
    typeFilter: 'all',
    sortField: 'created',
    sortOrder: 'desc',
    selectedIssue: null,
    selectedIssueComments: [],
    commentsLoading: false,
    detailScrollOffset: 0,
    repos: [],
    selectedRepoIndex: 0,
    repoSearchQuery: '',
    repoPickerActiveSearch: false,
    setupForm: {
      url: url || 'https://forgejo.freshbrewed.science',
      userid: userid || '',
      token: token || '',
      saveConfig: true,
      activeField: url ? (userid ? 'token' : 'userid') : 'url',
    },
    createIssueForm: {
      title: '',
      body: '',
      activeField: 'title',
    },
    addCommentForm: {
      body: '',
    },
    editIssueForm: {
      title: '',
      body: '',
      activeField: 'title',
    },
    addTimeForm: {
      timeInput: '',
    },
  };

  // If parameters are provided, try direct connection first
  if (url && repo) {
    const repoParts = repo.split('/');
    if (repoParts.length === 2 && repoParts[0].trim() && repoParts[1].trim()) {
      const normalized = normalizeUrl(url);
      const config: Config = {
        url: normalized,
        token: token ? token.trim() : null,
        userid: userid || repoParts[0].trim(),
        owner: repoParts[0].trim(),
        repo: repoParts[1].trim(),
      };

      console.log(chalk.cyan(`Connecting to Gitea/Forgejo instance at ${normalized}...`));
      
      try {
        await validateConnection(config);
        // Valid connection! Go straight to list screen
        state.config = config;
        state.screen = 'list';

        // Optionally save to global config if --save option is provided
        if (options.save) {
          saveGlobalConfig({
            url: normalized,
            userid: config.userid,
            token: config.token,
            repo: repo,
          });
          console.log(chalk.green('Settings saved successfully to global config file!'));
        }
      } catch (err: any) {
        // Validation failed, let's load setup form with the entered values and show error!
        state.error = `Connection failed: ${err.message}`;
        state.screen = 'setup';
        state.setupForm = {
          url: url,
          userid: userid || '',
          token: token || '',
          saveConfig: true,
          activeField: 'url',
        };
      }
    } else {
      state.error = 'Invalid repository path. Must be in owner/repo format.';
      state.screen = 'setup';
      state.setupForm = {
        url: url,
        userid: userid || '',
        token: token || '',
        saveConfig: true,
        activeField: 'url',
      };
    }
  }

  // Create and start the TUI engine
  const engine = new TuiEngine(state);
  
  engine.start(() => {
    // Perform cleanup and exit cleanly
    console.log(chalk.bold.green('\nThank you for using Forgejo TUI Issue Explorer! Goodbye.'));
    process.exit(0);
  });
}

bootstrap().catch((err) => {
  console.error(chalk.bold.red('Fatal Error on Bootstrap:'), err);
  process.exit(1);
});