import { validateJiraWebhook, validateSupportWebhook } from '../lib/validate.js';

const WEBHOOK_LOG_PROVIDERS = {
    'jira-request': 'jira',
    request: 'request',
};

export function createWebhookRoutes({ config, jiraProcessor, webexService, log }) {
    const { logger, logWarn, safeProcess, logFile, runWithCorrelationId, createCorrelationId } = log;

    function healthCheck(req, res) {
        res.status(200).json({ status: 'alive' });
    }

    function handleJiraWebhook(routeName, req, res) {
        res.status(201).send();
        const validation = validateJiraWebhook(req.body);
        const correlationMeta = { routeName, issueKey: validation.issueKey || req.body?.issue?.key };

        if (!validation.valid) {
            runWithCorrelationId(createCorrelationId(correlationMeta), () => {
                logWarn(routeName, `Invalid webhook payload: ${validation.error}`);
            });
            return;
        }

        safeProcess(routeName, () => {
            logger(
                routeName,
                `Accepted webhook event=${req.body.webhookEvent || 'unknown'} issue=${validation.issueKey} project=${req.body.issue?.fields?.project?.key || '?'}`
            );
            logFile(WEBHOOK_LOG_PROVIDERS[routeName] || routeName, req.body);
            jiraProcessor.processJiraTicket(req.body);
        }, correlationMeta);
    }

    function registerRoutes(app) {
        app.get('/healthCheck', healthCheck);
        app.get('/heathCheck', healthCheck);

        app.post('/jira-request', (req, res) => handleJiraWebhook('jira-request', req, res));
        app.post('/request', (req, res) => handleJiraWebhook('request', req, res));

        app.post('/support', (req, res) => {
            res.status(201).send();
            const validation = validateSupportWebhook(req.body);
            const correlationMeta = { routeName: 'support', issueKey: validation.issueKey || req.body?.issue?.key };

            if (!validation.valid) {
                runWithCorrelationId(createCorrelationId(correlationMeta), () => {
                    logWarn('support', `Invalid webhook payload: ${validation.error}`);
                });
                return;
            }

            safeProcess('support', () => {
                logFile('support', req.body);
                logger('support', `Received support webhook for ${validation.issueKey}`);
                webexService.processHighSeverity(req.body, config.rooms.support);
            }, correlationMeta);
        });
    }

    function registerErrorHandler(app) {
        app.use((err, req, res, next) => {
            log.logError('express', `${req.method} ${req.path}`, err);
            if (!res.headersSent) {
                res.status(500).json({ error: 'Internal server error' });
            }
        });
    }

    return { registerRoutes, registerErrorHandler };
}