// src/commands/woHistory.js
import { collectWoHistory } from '../services/woService.js';
import { logger } from '../utils/logger.js';

export async function handleWoHistory(bot, trigger) {
  logger('wo:history', 'Handler entered');

  // Support both Webex (args) and HTTP (query)
  const query = trigger.query || {};
  const args = trigger.args || [];

  let storeNum = args[0]?.trim() || query.storeNum || query.store || query.s;
  const modeArg = args[1]?.toLowerCase() || query.mode || '';

  const isDetailed = modeArg === 'detailed' || query.detailed === 'true';

  if (!storeNum || !/^\d{2,4}$/.test(storeNum)) {
    const usage = '**Work Order History Usage:**\n' +
      '`/woHistory 782` → Summary (last 15)\n' +
      '`/woHistory 782 detailed` → Full list\n\n' +
      'Also works via HTTP: `?storeNum=782&mode=detailed`';

    await bot.say('markdown', usage);
    return;
  }

  logger('wo:history', `Request for store ${storeNum} (${isDetailed ? 'detailed' : 'summary'} mode)`);

  try {
    const data = await collectWoHistory(storeNum);

    let reply = `**Work Order History – Store ${storeNum}** (Audio Visual Trade, past 3 years)\n\n`;

    if (data.workOrders.length === 0) {
      reply += 'No Audio Visual work orders found in the past 3 years.\n';
    } else {
      // Show all in detailed mode, limit to 15 in summary
      const displayWOs = isDetailed ? data.workOrders : data.workOrders.slice(0, 15);

      let grandTotal = 0;

      displayWOs.forEach(wo => {
        reply += `**${wo.woNumber}** - ${wo.summary}\n`;
        reply += `Status: ${wo.status} • Opened: ${wo.openedDate} • Total Cost: $${wo.totalInvoiceCost.toLocaleString()}\n\n`;
        grandTotal += wo.totalInvoiceCost;
      });

      reply += `**Grand Total (AV Trade):** $${grandTotal.toLocaleString()}\n`;

      if (!isDetailed && data.workOrders.length > 15) {
        reply += `\nShowing first 15 of ${data.workOrders.length} work orders. Use \`/woHistory ${storeNum} detailed\` for full list.\n`;
      }
    }

    reply += `\n*Last checked: ${new Date().toLocaleTimeString()}*`;

    await bot.say('markdown', reply.trim() || 'No data available.');

    logger('wo:history', `Successfully returned ${data.workOrders.length} work orders for store ${storeNum}`);

  } catch (err) {
    logger('wo:history', `Error processing woHistory for store ${storeNum}: ${err.message}`, 'error');
    await bot.say('markdown', `❌ Error collecting work order history: ${err.message}`);
  }
}