import { systemEvents, EVENTS } from "@shared/lib/events";
import { questService } from "@shared/modules/quest/quest.service";
import { dashboardService } from "@shared/modules/dashboard/dashboard.service";

/**
 * Registers all domain event listeners.
 * Must be called once at startup before any domain events are emitted.
 *
 * This wiring replaces dynamic imports that were previously used to avoid
 * circular dependencies between services (e.g., economy -> quest -> economy).
 */
export function registerDomainEventListeners() {
    // --- Quest progress tracking (awaited via emitAsync to preserve tx atomicity) ---

    systemEvents.on(EVENTS.DOMAIN.BALANCE_CHANGED, async ({ userId, type, tx }) => {
        await questService.handleEvent(userId, type, 1, tx);
    });

    systemEvents.on(EVENTS.DOMAIN.XP_GAINED, async ({ userId, amount, tx }) => {
        await questService.handleEvent(userId, 'XP_GAIN', amount, tx);
    });

    systemEvents.on(EVENTS.DOMAIN.ITEM_COLLECTED, async ({ userId, itemId, quantity, tx }) => {
        await questService.handleEvent(userId, `ITEM_COLLECT:${itemId}`, quantity, tx);
    });

    systemEvents.on(EVENTS.DOMAIN.ITEM_USED, async ({ userId, itemId, tx }) => {
        await questService.handleEvent(userId, `ITEM_USE:${itemId}`, 1, tx);
    });

    // --- Dashboard event recording (fire-and-forget) ---

    systemEvents.on(EVENTS.DOMAIN.TRANSFER_COMPLETED, async ({ username, amount, toUserId }) => {
        await dashboardService.recordEvent({
            type: 'info',
            message: `${username} transferred ${amount.toLocaleString()} AU to User ID ${toUserId}`,
            icon: '💸'
        });
    });

    systemEvents.on(EVENTS.DOMAIN.DAILY_CLAIMED, async ({ username, amount }) => {
        await dashboardService.recordEvent({
            type: 'success',
            message: `${username} claimed daily reward: ${amount.toLocaleString()} AU`,
            icon: '☀️'
        });
    });

    systemEvents.on(EVENTS.DOMAIN.TRIVIA_STARTED, async ({ username, difficulty }) => {
        await dashboardService.recordEvent({
            type: 'info',
            message: `${username} started a trivia game (${difficulty})`,
            icon: '🎯'
        });
    });

    systemEvents.on(EVENTS.DOMAIN.TRIVIA_WON, async ({ username, reward }) => {
        await dashboardService.recordEvent({
            type: 'success',
            message: `${username} won ${reward.toLocaleString()} AU from trivia!`,
            icon: '🎉'
        });
    });

    systemEvents.on(EVENTS.DOMAIN.EXAM_PASSED, async ({ username, reward }) => {
        await dashboardService.recordEvent({
            type: 'success',
            message: `${username} passed their exam: ${reward.toLocaleString()} AU`,
            icon: '🎓'
        });
    });
}