// main/ipc/mq.js
const { ipcMain } = require('electron')
const mq = require('../../js/rabbitmq-service') // 复用你的文件
let currentTenantId = null

async function startConsumer(emitMessage, tenantId) {
    await mq.startConsumer(
        `q.tenant.${tenantId}`,
        (msg) => emitMessage(msg.json ?? msg.text),
        { prefetch: 1, requeueOnError: false, durable: true, assertQueue: true }
    )
}

function registerMqIpc(emitMessage) {
    ipcMain.removeHandler('start-mq')
    ipcMain.handle('start-mq', async (_event, tenantId, userId) => {
        currentTenantId = tenantId
        await startConsumer(emitMessage, tenantId)
        return { ok: true }
    })

    ipcMain.removeHandler('mq-send')
    ipcMain.handle('mq-send', async (_event, payload) => {
        if (!currentTenantId) return { ok: false, error: 'tenant not set' }
        await mq.publishToQueue(`q.tenant.${currentTenantId}`, payload)
        return { ok: true }
    })
}

module.exports = { registerMqIpc }