import { buildChangeApproval, buildRequestApproval } from './approvalCards.js';

export function createJiraProcessor({ config, requests, jiraService, webexService, log }) {
    const { logger, logWarn, logError } = log;
    const approvalRoomId = config.rooms.approval;

    function handleApprovalNotifications(issueKey, jiraTicket, buildApprovalFn) {
        buildApprovalFn(jiraTicket, log)
            .then(approvalCard => jiraService.buildApprovers(issueKey).then(approvers => ({ approvalCard, approvers })))
            .then(({ approvalCard, approvers }) => {
                const cardPayload = {
                    text: approvalCard.message,
                    attachments: [{ contentType: 'application/vnd.microsoft.card.adaptive', content: approvalCard.card }],
                };
                for (const approver of approvers) {
                    logger('processJiraTicket', `Notifying ${issueKey} --> ${approver}`);
                    webexService.sendTicketCard(issueKey, { toPersonEmail: approver, ...cardPayload });
                }
                if (approvers.length > 0) {
                    webexService.sendTicketCard(issueKey, { roomId: approvalRoomId, ...cardPayload });
                }
            })
            .catch(error => logError('processJiraTicket', `Failed approval notifications for ${issueKey}`, error));
    }

    function processJiraTicket(jiraTicket) {
        if (!jiraTicket?.issue?.key) {
            logError('processJiraTicket', 'Missing issue key in webhook payload');
            return;
        }

        const issueKey = jiraTicket.issue.key;
        let requestType;
        let transitionId;

        logger('processJiraTicket', `Processing ${issueKey}.`);

        if (jiraTicket.transition) {
            logger('processJiraTicket', `${issueKey} Transition: ${jiraTicket.transition.transitionId}.`);
            const requestTypeField = jiraTicket.issue.fields?.customfield_10010;
            if (requestTypeField?.requestType?.id) {
                requestType = requestTypeField.requestType.id;
                transitionId = jiraTicket.transition.transitionId;
            } else {
                logWarn('processJiraTicket', `${issueKey} - missing requestType: ${JSON.stringify(requestTypeField)}`);
            }
        }

        if (!issueKey || !requestType || !requests[requestType]) {
            return;
        }

        logger('processJiraTicket', `${issueKey} RequestType: ${requestType} Requests?: ${JSON.stringify(requests[requestType])}`);

        if (requests[requestType].transitions[transitionId]) {
            if (jiraTicket.issue.fields.project.key == 'CHANGE') {
                logger('processJiraTicket', `${issueKey} is a CHANGE.`);
                handleApprovalNotifications(issueKey, jiraTicket, buildChangeApproval);
            } else if (jiraTicket.issue.fields.project.key == 'REQUEST') {
                logger('processJiraTicket', `${issueKey} is a REQUEST.`);
                handleApprovalNotifications(issueKey, jiraTicket, buildRequestApproval);
            }
            return;
        }

        if (!jiraTicket.changelog) {
            return;
        }

        const approvalStatuses = ['Pending Approval', 'Emergency Approval', 'Waiting for approval'];
        for (const change of jiraTicket.changelog.items) {
            if (change.field != 'Approvers' || !approvalStatuses.includes(jiraTicket.issue.fields.status.name)) {
                continue;
            }
            if (jiraTicket.issue.fields.project.key == 'CHANGE') {
                handleApprovalNotifications(issueKey, jiraTicket, buildChangeApproval);
            } else {
                handleApprovalNotifications(issueKey, jiraTicket, buildRequestApproval);
            }
        }
    }

    return { processJiraTicket };
}