#!/usr/bin/env bun
/**
 * quinn-my — CLI for the Quinn personal dashboard API.
 *
 * Usage:
 *   quinn-my login
 *   quinn-my platforms list
 *   quinn-my platforms update <name> --field value
 *   quinn-my tasks list [--section today|tour]
 *   quinn-my tasks add <text> [--priority urgent|high|normal] [--section today|tour]
 *   quinn-my tasks complete <id>
 *   quinn-my tasks remove <id>
 *   quinn-my context show
 *   quinn-my context update <section> <content>
 *   quinn-my context replace < file.md
 */

import { loadConfig, saveConfig } from './config';
import { apiLogin } from './client';
import { listPlatforms, updatePlatformCmd } from './commands/platforms';
import { listTasks, addTaskCmd, completeTaskCmd, removeTaskCmd } from './commands/tasks';
import { showContext, updateContextSection, replaceContextCmd } from './commands/context';
import { rosterStatus, rosterList, rosterShow, rosterAccept, rosterReject, rosterTrackUpdate, rosterMemberDeactivate } from './commands/roster';

const args = process.argv.slice(2);
const command = args[0];
const subcommand = args[1];

function parseFlags(flagArgs: string[]): Record<string, string> {
  const flags: Record<string, string> = {};
  for (let i = 0; i < flagArgs.length; i++) {
    const arg = flagArgs[i];
    if (arg.startsWith('--') && i + 1 < flagArgs.length) {
      flags[arg.slice(2)] = flagArgs[i + 1];
      i++;
    }
  }
  return flags;
}

function usage(): void {
  console.log(`quinn-my — Quinn personal dashboard CLI

Commands:
  login                              Authenticate with passphrase
  platforms list                     List all platforms with status
  platforms update <name> --k v      Update platform fields
  tasks list [--section today|tour]  List tasks
  tasks add <text> [--priority p]    Add a task
  tasks complete <id>                Mark task done
  tasks remove <id>                  Delete a task
  context show                       Print context.md
  context update <section> <text>    Update a section
  context replace                    Replace from stdin
  roster status                      Roster tracks + availability
  roster list [--status s] [--track t] List applications
  roster show <id>                   Show application details
  roster accept <id>                 Accept application
  roster reject <id> [--note "..."]  Reject application
  roster track <slug> --capacity N   Update track config
  roster member deactivate <id>      Deactivate a member`);
}

async function main(): Promise<void> {
  try {
    if (!command || command === 'help' || command === '--help') {
      usage();
      return;
    }

    if (command === 'login') {
      const passphrase = await new Promise<string>((resolve) => {
        process.stdout.write('Passphrase: ');
        const stdin = process.stdin;
        let input = '';
        stdin.setRawMode?.(true);
        stdin.resume();
        stdin.setEncoding('utf-8');
        stdin.on('data', (char: string) => {
          if (char === '\r' || char === '\n') {
            stdin.setRawMode?.(false);
            stdin.pause();
            process.stdout.write('\n');
            resolve(input);
          } else if (char === '\u007f') {
            input = input.slice(0, -1);
          } else {
            input += char;
          }
        });
      });

      const result = await apiLogin(passphrase);
      if (!result) {
        console.error('Login failed');
        process.exit(1);
      }

      const config = await loadConfig();
      config.token = result.token;
      await saveConfig(config);
      console.log(`Authenticated. Expires: ${result.expiresAt}`);
      return;
    }

    if (command === 'platforms') {
      if (subcommand === 'list' || !subcommand) {
        await listPlatforms();
      } else if (subcommand === 'update' && args[2]) {
        await updatePlatformCmd(args[2], parseFlags(args.slice(3)));
      } else {
        console.error('Usage: quinn-my platforms [list|update <name> --field value]');
        process.exit(1);
      }
      return;
    }

    if (command === 'tasks') {
      if (subcommand === 'list' || !subcommand) {
        const flags = parseFlags(args.slice(2));
        await listTasks(flags['section']);
      } else if (subcommand === 'add' && args[2]) {
        const flags = parseFlags(args.slice(3));
        await addTaskCmd(args[2], flags['priority'] ?? 'normal', flags['section'] ?? 'today');
      } else if (subcommand === 'complete' && args[2]) {
        await completeTaskCmd(args[2]);
      } else if (subcommand === 'remove' && args[2]) {
        await removeTaskCmd(args[2]);
      } else {
        console.error('Usage: quinn-my tasks [list|add|complete|remove] ...');
        process.exit(1);
      }
      return;
    }

    if (command === 'context') {
      if (subcommand === 'show' || !subcommand) {
        await showContext();
      } else if (subcommand === 'update' && args[2] && args[3]) {
        await updateContextSection(args[2], args.slice(3).join(' '));
      } else if (subcommand === 'replace') {
        const chunks: string[] = [];
        for await (const chunk of process.stdin) {
          chunks.push(typeof chunk === 'string' ? chunk : new TextDecoder().decode(chunk));
        }
        await replaceContextCmd(chunks.join(''));
      } else {
        console.error('Usage: quinn-my context [show|update <section> <text>|replace]');
        process.exit(1);
      }
      return;
    }

    if (command === 'roster') {
      if (subcommand === 'status' || !subcommand) {
        await rosterStatus();
      } else if (subcommand === 'list') {
        await rosterList(parseFlags(args.slice(2)));
      } else if (subcommand === 'show' && args[2]) {
        await rosterShow(args[2]);
      } else if (subcommand === 'accept' && args[2]) {
        await rosterAccept(args[2]);
      } else if (subcommand === 'reject' && args[2]) {
        const flags = parseFlags(args.slice(3));
        await rosterReject(args[2], flags['note']);
      } else if (subcommand === 'track' && args[2]) {
        await rosterTrackUpdate(args[2], parseFlags(args.slice(3)));
      } else if (subcommand === 'member' && args[2] === 'deactivate' && args[3]) {
        await rosterMemberDeactivate(args[3]);
      } else {
        console.error('Usage: quinn-my roster [status|list|show|accept|reject|track|member deactivate] ...');
        process.exit(1);
      }
      return;
    }

    console.error(`Unknown command: ${command}`);
    usage();
    process.exit(1);
  } catch (err) {
    console.error('Fatal:', String(err));
    process.exit(1);
  }
}

main();