#!/usr/bin/env node
// Dump JSM request-type field definitions for approval card mapping.
//
// Usage:
//   node scripts/discover-request-type-fields.js
// Writes config/requestTypeFields.discovered.json

import dotenv from 'dotenv';
import fetch from 'node-fetch';
import fs from 'fs';

dotenv.config();

const cloudId = process.env.JIRA_CLOUD_ID?.trim();
const host = cloudId
    ? `https://api.atlassian.com/ex/jira/${cloudId}`
    : (process.env.JIRA_BASE_URL || 'https://aeo.atlassian.net').replace(/\/$/, '');
const email = process.env.JIRA_EMAIL;
const token = process.env.JIRA_API_TOKEN;

if (!email || !token) {
    console.error('JIRA_EMAIL and JIRA_API_TOKEN must be set in .env');
    process.exit(1);
}

const headers = {
    Accept: 'application/json',
    Authorization: `Basic ${Buffer.from(`${email}:${token}`).toString('base64')}`,
};

const deskMap = {
    177: '135',
    179: '135',
    183: '135',
};
const defaultDesk = '136';

const requests = JSON.parse(fs.readFileSync('./config/requests.json', 'utf8'));

function summarizeField(field) {
    return {
        fieldId: field.fieldId,
        name: field.name,
        required: field.required,
        type: field.jiraSchema?.type,
        custom: field.jiraSchema?.custom,
    };
}

const output = {
    _meta: {
        generatedAt: new Date().toISOString(),
        serviceDesks: { CHANGE: '135', REQUEST: '136' },
        source: 'GET /rest/servicedeskapi/servicedesk/{deskId}/requesttype/{id}/field',
    },
    requestTypes: {},
};

for (const [id, cfg] of Object.entries(requests)) {
    const deskId = deskMap[id] || defaultDesk;
    const url = `${host}/rest/servicedeskapi/servicedesk/${deskId}/requesttype/${id}/field`;
    const response = await fetch(url, { headers });
    const data = await response.json();

    if (!response.ok) {
        output.requestTypes[id] = {
            name: cfg.name,
            serviceDeskId: deskId,
            error: data.errorMessage || String(response.status),
        };
        continue;
    }

    output.requestTypes[id] = {
        name: cfg.name,
        serviceDeskId: deskId,
        fields: (data.requestTypeFields || []).map(summarizeField),
    };
}

const outputPath = './config/requestTypeFields.discovered.json';
fs.writeFileSync(outputPath, JSON.stringify(output, null, 2));
console.log(`Wrote ${outputPath}`);

for (const [id, rt] of Object.entries(output.requestTypes)) {
    const count = rt.fields?.length ?? 0;
    console.log(`${id} ${rt.name}: ${rt.error || `${count} fields`}`);
}