const config = require('../config.json')

const VALID_ROLES = new Set(['all', 'api', 'worker'])

/**
 * 进程角色：all=API+乐跑Worker一体；api=仅HTTP入队；worker=仅消费乐跑任务
 * 环境变量 RUNFORGE_SERVER_ROLE 优先于 config.serverRole
 */
function resolveServerRole() {
    const raw = process.env.RUNFORGE_SERVER_ROLE || config.serverRole || 'all'
    const role = String(raw).toLowerCase()
    if (VALID_ROLES.has(role)) return role
    console.warn(`[serverRole] 未知值 "${raw}"，回退为 all`)
    return 'all'
}

function shouldServeApi(role) {
    return role === 'all' || role === 'api'
}

function shouldRunLepaoWorker(role) {
    return role === 'all' || role === 'worker'
}

module.exports = {
    resolveServerRole,
    shouldServeApi,
    shouldRunLepaoWorker
}