MailSend/src/frontend/landing/i18n.js

export const LANDING_LOCALE_KEY = 'mailhub-landing-locale';
export const supportedLocales = ['zh-CN', 'en-US'];

const messages = {
  'zh-CN': {
    'nav.features': '功能',
    'nav.integrate': '接入',
    'nav.quickstart': '使用说明',
    'nav.api': 'API',
    'nav.mailboxes': '邮箱',
    'nav.receiving': '收信',
    'nav.domains': '域名配置',
    'nav.smtp': 'SMTP',
    'nav.webhooks': 'Webhooks',
    'cta.login': '登录',
    'cta.signup': '开始使用',
    'cta.viewApi': '查看 API 示例',
    'cta.github': 'GitHub',
    'common.copy': '复制',
    'common.copied': '已复制',
    'common.yes': '是',
    'common.no': '否',
    'hero.eyebrow': '事务邮件平台',
    'hero.title': '用 API 与 SMTP 发送可靠的事务邮件',
    'hero.lede': '自托管 MailHub 提供域名 DNS 引导、DKIM 签名、投递日志与签名 Webhook —— 无需被黑盒 SaaS 锁定。',
    'hero.curl': `curl -X POST https://mail.example.com/api/send \\
  -H 'Authorization: Bearer <USER_API_TOKEN>' \\
  -H 'Content-Type: application/json' \\
  -d '{
    "from": "noreply@example.com",
    "to": "user@example.com",
    "subject": "Hello from MailHub",
    "text": "Signed with DKIM and queued by MailHub."
  }'`,
    'trust.selfHosted': '自托管',
    'trust.webhooks': '投递 Webhooks',
    'features.title': '为生产发信而设计',
    'features.sub': '完成域名认证、发送与可观测所需的关键能力。',
    'features.dns.title': '域名与 DNS',
    'features.dns.body': 'SPF / DKIM / DMARC 引导，支持 DNS 服务商一键写入。',
    'features.smtp.title': 'SMTP Submission',
    'features.smtp.body': '面向应用的 SMTP 接入，凭据由你掌控。',
    'features.api.title': 'HTTP 发送 API',
    'features.api.body': 'Bearer Token + 简洁 JSON 发送接口，适合服务端集成。',
    'features.mailboxes.title': '邮箱与收信',
    'features.mailboxes.body': '创建长期或到期邮箱，支持 IMAP、POP3、转发和未知地址收取。',
    'features.logs.title': '投递日志',
    'features.logs.body': '跟踪入队与 MTA 结果，支持检索发送历史。',
    'features.hooks.title': 'Webhooks',
    'features.hooks.body': '对已送达 / 退信 / 失败终态事件进行签名回调。',
    'features.multi.title': '多用户隔离',
    'features.multi.body': '域名、Token 与日志按账号隔离。',
    'integrate.title': '三种接入方式',
    'integrate.sub': '选择适合你技术栈的路径 —— 注册登录后完成配置。',
    'integrate.api.title': 'API',
    'integrate.api.body': '创建 API Token，使用 Bearer 认证 POST JSON 到 /api/send。',
    'integrate.api.link': '查看 API 示例 →',
    'integrate.smtp.title': 'SMTP',
    'integrate.smtp.body': '将应用指向 MailHub Submission 端口，使用独立登录凭据。',
    'integrate.smtp.link': '查看 SMTP 说明 →',
    'integrate.hooks.title': 'Webhooks',
    'integrate.hooks.body': '为终态投递事件订阅端点，校验 HMAC 签名。',
    'integrate.hooks.link': '查看 Webhook 事件 →',
    'quickstart.title': '四步开始使用',
    'quickstart.sub': '在同一个控制台完成域名、Token、邮箱和投递配置。',
    'quickstart.domain.title': '添加域名',
    'quickstart.domain.body': '添加发信域名，并发布 MailHub 展示的 DNS 记录。',
    'quickstart.domain.link': '查看域名配置 →',
    'quickstart.token.title': '创建最小权限 Token',
    'quickstart.token.body': '只为每个接入授予所需的发信或邮箱权限。',
    'quickstart.token.link': '查看 API 权限 →',
    'quickstart.mailbox.title': '创建邮箱',
    'quickstart.mailbox.body': '可在控制台创建长期邮箱，也可通过 API 创建长期或临时邮箱。',
    'quickstart.mailbox.link': '查看邮箱 API →',
    'quickstart.client.title': '接入客户端',
    'quickstart.client.body': '使用 SMTP 发信，用 IMAP 或 POP3 收信，均使用完整邮箱地址和密码。',
    'quickstart.client.link': '查看协议配置 →',
    'api.title': 'API 认证与发信',
    'api.sub': '所有公开 API 均使用 Bearer Token。下列主机名为占位符，请替换为你的 MailHub 地址。',
    'api.auth.title': '创建并保护 Token',
    'api.auth.body': '在控制台的 API Token 页面创建 Token。完整密钥仅显示一次，请存储在服务端环境，切勿写入浏览器代码或公开仓库。',
    'api.auth.send': '使用 POST /api/send 发信',
    'api.auth.read': '使用 GET /api/mailboxes 查询邮箱',
    'api.auth.write': '使用 POST /api/mailboxes 创建邮箱',
    'api.send.title': '发送一封邮件',
    'api.send.body': 'From 域名必须属于该 Token 所在账号。若启用了已验证域名发信，请先完成控制台中的 DNS 校验。',
    'api.curl': `curl -X POST https://mail.example.com/api/send \\
  -H 'Authorization: Bearer <USER_API_TOKEN>' \\
  -H 'Content-Type: application/json' \\
  -d '{
    "from": "noreply@example.com",
    "to": "user@example.com",
    "subject": "Hello from MailHub",
    "text": "Signed with DKIM and queued by MailHub."
  }'`,
    'api.fields.name': '字段',
    'api.fields.required': '必填',
    'api.fields.description': '说明',
    'api.field.from': '该账号已添加域名上的发件地址',
    'api.field.to': '单个收件人字符串或地址数组',
    'api.field.subject': '默认值为 (no subject)',
    'api.field.text': '纯文本正文',
    'api.field.html': 'HTML 正文；启用打开或点击跟踪时需要提供',
    'api.field.tracking': 'true/false，或 { opens, clicks }；仅改写 HTML',
    'api.field.relay': '属于当前账号的外部 SMTP 出口 ID',
    'api.responseLabel': '202 响应',
    'api.response': `{
  "eventId": 42,
  "queued": true,
  "domain": "example.com",
  "recipients": ["user@example.com"],
  "smtp": "Message queued",
  "queueId": "AB12CD34",
  "tracking": { "enabled": false, "opens": false, "clicks": false }
}`,
    'api.note': '202 表示 MailHub 已接受邮件并交给 SMTP 投递。后续投递结果请查看控制台日志或使用 Webhook。',
    'mailboxes.title': '邮箱 API 与客户端接入',
    'mailboxes.sub': '为持续使用创建长期邮箱；为短流程创建可自动过期的临时邮箱。',
    'mailboxes.api.title': '邮箱 API 权限',
    'mailboxes.api.body': '使用拥有 mailboxes:write 权限的 Token 调用 POST /api/mailboxes，目标域名必须属于该账号。',
    'mailboxes.api.mode': 'permanent 或 temporary',
    'mailboxes.api.address': '传入完整邮箱，或使用 domain 加 localPart',
    'mailboxes.api.expires': '临时邮箱必填，范围为 5 分钟到 30 天',
    'mailboxes.api.password': '可选；不传时会仅在创建响应中返回安全密码',
    'mailboxes.client.title': '使用返回的客户端配置',
    'mailboxes.client.body': '创建响应包含邮箱地址、密码、到期时间，以及可直接使用的 IMAP、POP3、SMTP 配置。',
    'mailboxes.client.imap': '推荐，支持同步文件夹与已发送邮件',
    'mailboxes.client.pop3': '适合下载到本地的客户端',
    'mailboxes.client.smtp': '发信时同样使用完整邮箱地址和密码',
    'mailboxes.permanent.label': 'POST /api/mailboxes - 长期邮箱',
    'mailboxes.permanent.curl': `curl -X POST https://mail.example.com/api/mailboxes -H 'Authorization: Bearer <MAILBOX_API_TOKEN>' -H 'Content-Type: application/json' -d '{
  "mode": "permanent",
  "address": "support@example.com",
  "password": "<MAILBOX_PASSWORD>",
  "displayName": "Support",
  "aliases": ["help"],
  "forwardTo": ["archive@example.net"],
  "keepForwarded": true,
  "quotaMb": 1024
}'`,
    'mailboxes.temporary.label': 'POST /api/mailboxes - 临时邮箱',
    'mailboxes.temporary.curl': `curl -X POST https://mail.example.com/api/mailboxes -H 'Authorization: Bearer <MAILBOX_API_TOKEN>' -H 'Content-Type: application/json' -d '{
  "mode": "temporary",
  "domain": "example.com",
  "expiresInMinutes": 60
}'`,
    'mailboxes.list.curl': "curl -H 'Authorization: Bearer <MAILBOX_API_TOKEN>' https://mail.example.com/api/mailboxes",
    'mailboxes.responseLabel': '201 创建响应',
    'mailboxes.response': `{
  "mailbox": {
    "address": "tmp-a1b2c3@example.com",
    "temporary": true,
    "expiresAt": "2026-07-15T12:00:00.000Z"
  },
  "password": "<GENERATED_MAILBOX_PASSWORD>",
  "clientConfig": {
    "incoming": { "protocol": "IMAP", "host": "mail.example.com", "port": 993, "security": "IMAPS" },
    "pop3": { "protocol": "POP3", "host": "mail.example.com", "port": 995, "security": "POP3S" },
    "outgoing": { "protocol": "SMTP", "host": "mail.example.com", "port": 465, "security": "SMTPS" }
  }
}`,
    'mailboxes.lifecycle.password': '自动生成的密码仅在创建响应中返回一次；请立即保存。',
    'mailboxes.lifecycle.temporary': '临时邮箱在指定时间后到期，随后停止收信和认证。',
    'mailboxes.lifecycle.list': '使用 mailboxes:read 查询邮箱元数据；列表接口永不返回密码。',
    'receiving.title': '收信',
    'receiving.sub': '邮件通过域名 MX 记录投递。在 MailHub 收件箱或标准 IMAP/POP3 客户端中读取；当前没有单独的 Bearer 收信读取 API。',
    'receiving.delivery.title': '邮件投递到 MailHub',
    'receiving.delivery.body': '将域名 MX 指向收信主机。外部邮件服务器会投递到 SMTP 25 端口；MailHub 将邮件存入已有邮箱、别名或未知地址收取目标。',
    'receiving.routing.title': '邮箱、别名与未知地址收取',
    'receiving.routing.body': '先创建完整邮箱地址，再在邮箱上添加别名或转发。通过控制台的域名未知地址收取设置，将不存在的本地部分路由到某个邮箱或外部地址。',
    'receiving.protocols.protocol': '协议',
    'receiving.protocols.ports': '推荐端口',
    'receiving.protocols.security': '加密',
    'receiving.protocols.use': '用途',
    'receiving.protocols.imapSecurity': 'SSL/TLS 或 STARTTLS',
    'receiving.protocols.imapUse': '推荐，用于同步文件夹',
    'receiving.protocols.pop3Security': 'SSL/TLS 或 STLS',
    'receiving.protocols.pop3Use': '下载到本地的客户端',
    'receiving.protocols.smtpSecurity': 'SMTPS 或 STARTTLS',
    'receiving.protocols.smtpUse': '使用相同邮箱地址和密码发信',
    'receiving.folders': 'IMAP 会提供 INBOX、Sent、Drafts、Trash、Junk 和 Archive。需要同步这些文件夹并保存已发送邮件时，请优先使用 IMAP。',
    'domainsDoc.title': '域名配置',
    'domainsDoc.sub': '先在 MailHub 中添加域名。控制台 DNS 面板展示的验证、DKIM、SPF、DMARC 与发信主机值是该域名的最终准则。',
    'domainsDoc.col.purpose': '用途',
    'domainsDoc.col.record': '记录',
    'domainsDoc.col.requirement': '要求',
    'domainsDoc.row.verify': '域名归属验证',
    'domainsDoc.row.verifyValue': '发布控制台生成的验证值。',
    'domainsDoc.row.dkim': '发布该域名生成的公钥。',
    'domainsDoc.row.spf': '仅保留一条 SPF，并包含 MailHub 要求的发信 IP/主机。',
    'domainsDoc.row.dmarc': '先以监控策略开始，确认对齐后再逐步增强策略。',
    'domainsDoc.row.mx': '收信',
    'domainsDoc.row.mxValue': 'MX 指向 MailHub 收信主机，并确保该主机存在 A/AAAA 记录。',
    'domainsDoc.note': '为提高投递可靠性，还需将发信 IP 的 PTR 配置为 MailHub 发信主机名，并在防火墙放行文档所列 SMTP、IMAP、POP3 端口。',
    'smtp.title': 'SMTP Submission',
    'smtp.sub': '默认监听端口（部署时可覆盖）：',
    'smtp.app.title': '应用 SMTP',
    'smtp.app.body': '在控制台创建 SMTP 登录凭据供应用使用，并搭配属于该账号的 From 域名。',
    'smtp.mailbox.title': '邮箱 SMTP',
    'smtp.mailbox.body': '创建出的邮箱也可以用完整地址和密码通过 SMTP 认证发信；IMAP 与 POP3 使用相同的凭据。',
    'smtp.note': '发信优先使用 465 或 587，IMAP 使用 993，POP3 使用 995。若部署覆盖了默认端口或 TLS 监听，请以创建邮箱响应中的 clientConfig 为准。',
    'errors.title': '响应与常见错误',
    'errors.sub': 'API 返回 JSON。使用响应体前，请先判断 HTTP 状态码。',
    'errors.status': '状态码',
    'errors.meaning': '含义',
    'errors.action': '处理方式',
    'errors.201.meaning': '邮箱已创建',
    'errors.201.action': '保存一次性密码与 clientConfig。',
    'errors.202.meaning': '邮件已被接受并交给 SMTP 投递',
    'errors.202.action': '在日志或 Webhook 中查看后续投递状态。',
    'errors.400.meaning': '请求参数不正确，或不满足域名归属规则',
    'errors.400.action': '阅读 JSON error 字段，修正请求体或域名配置。',
    'errors.401.meaning': 'Token 缺失、无效、已撤销或已过期',
    'errors.401.action': '创建或轮换一个有效 Token。',
    'errors.403.meaning': 'Token 缺少所需权限',
    'errors.403.action': '在控制台 API Token 页面授予最小所需权限。',
    'errors.409.meaning': '邮箱地址已存在',
    'errors.409.action': '换用其他地址，或使用现有邮箱。',
    'webhooks.title': '投递 Webhooks',
    'webhooks.sub': '仅终态事件 —— 向你的系统发送签名 HTTPS 回调。',
    'webhooks.col.status': '状态',
    'webhooks.col.type': 'type',
    'webhooks.sig': '签名请求头：',
    'ctaBand.title': '准备好发送了吗？',
    'ctaBand.sub': '创建账号、添加域名，几分钟内发出第一封邮件。',
    'footer.tag': '自托管邮件投递控制平面'
  },
  'en-US': {
    'nav.features': 'Features',
    'nav.integrate': 'Integrate',
    'nav.quickstart': 'Quick start',
    'nav.api': 'API',
    'nav.mailboxes': 'Mailboxes',
    'nav.receiving': 'Receiving',
    'nav.domains': 'Domain setup',
    'nav.smtp': 'SMTP',
    'nav.webhooks': 'Webhooks',
    'cta.login': 'Log in',
    'cta.signup': 'Get started',
    'cta.viewApi': 'View API sample',
    'cta.github': 'GitHub',
    'common.copy': 'Copy',
    'common.copied': 'Copied',
    'common.yes': 'Yes',
    'common.no': 'No',
    'hero.eyebrow': 'Transactional email platform',
    'hero.title': 'Send reliable email via API & SMTP',
    'hero.lede': 'Self-hosted MailHub gives you domain DNS guidance, DKIM signing, delivery logs, and signed webhooks — without locking you into a black-box SaaS.',
    'hero.curl': `curl -X POST https://mail.example.com/api/send \\
  -H 'Authorization: Bearer <USER_API_TOKEN>' \\
  -H 'Content-Type: application/json' \\
  -d '{
    "from": "noreply@example.com",
    "to": "user@example.com",
    "subject": "Hello from MailHub",
    "text": "Signed with DKIM and queued by MailHub."
  }'`,
    'trust.selfHosted': 'Self-hosted',
    'trust.webhooks': 'Delivery webhooks',
    'features.title': 'Built for production senders',
    'features.sub': 'Everything you need to authenticate domains and observe delivery.',
    'features.dns.title': 'Domains & DNS',
    'features.dns.body': 'Guided SPF, DKIM, DMARC, and one-click DNS provider writes.',
    'features.smtp.title': 'SMTP Submission',
    'features.smtp.body': 'App-friendly SMTP listeners with credentials you control.',
    'features.api.title': 'HTTP Send API',
    'features.api.body': 'Bearer tokens and a simple JSON send endpoint for apps and services.',
    'features.mailboxes.title': 'Mailboxes & receiving',
    'features.mailboxes.body': 'Create persistent or expiring inboxes with IMAP, POP3, forwarding, and catch-all routing.',
    'features.logs.title': 'Delivery logs',
    'features.logs.body': 'Track queue and MTA outcomes with searchable send history.',
    'features.hooks.title': 'Webhooks',
    'features.hooks.body': 'Signed callbacks for sent, bounced, and failed terminal events.',
    'features.multi.title': 'Multi-user isolation',
    'features.multi.body': 'Domains, tokens, and logs stay scoped to each account.',
    'integrate.title': 'Three ways to integrate',
    'integrate.sub': 'Pick the path that matches your stack — configure after sign-in.',
    'integrate.api.title': 'API',
    'integrate.api.body': 'Create an API token, then POST JSON to /api/send with Bearer auth.',
    'integrate.api.link': 'See API sample →',
    'integrate.smtp.title': 'SMTP',
    'integrate.smtp.body': 'Point your app at MailHub submission ports with per-user credentials.',
    'integrate.smtp.link': 'See SMTP details →',
    'integrate.hooks.title': 'Webhooks',
    'integrate.hooks.body': 'Subscribe endpoints to terminal delivery events with HMAC signatures.',
    'integrate.hooks.link': 'See webhook events →',
    'quickstart.title': 'Start in four steps',
    'quickstart.sub': 'Keep domain, token, mailbox, and delivery configuration in one console.',
    'quickstart.domain.title': 'Add a domain',
    'quickstart.domain.body': 'Add your sending domain and publish the DNS records shown by MailHub.',
    'quickstart.domain.link': 'Review domain setup →',
    'quickstart.token.title': 'Create a scoped token',
    'quickstart.token.body': 'Give each integration only the send or mailbox permissions it needs.',
    'quickstart.token.link': 'Review API access →',
    'quickstart.mailbox.title': 'Provision mailboxes',
    'quickstart.mailbox.body': 'Create persistent mailboxes in the console or create persistent and temporary mailboxes by API.',
    'quickstart.mailbox.link': 'Review mailbox API →',
    'quickstart.client.title': 'Connect your client',
    'quickstart.client.body': 'Use SMTP to send and IMAP or POP3 to receive with the full mailbox address and password.',
    'quickstart.client.link': 'Review protocol settings →',
    'api.title': 'API authentication and sending',
    'api.sub': 'All public API calls use a Bearer token. The hostname below is a placeholder; replace it with your MailHub host.',
    'api.auth.title': 'Create and protect a token',
    'api.auth.body': 'Create a token in Console > API Tokens. The complete secret is shown only once, so store it outside browser code and public repositories.',
    'api.auth.send': 'send messages with POST /api/send',
    'api.auth.read': 'list mailboxes with GET /api/mailboxes',
    'api.auth.write': 'create mailboxes with POST /api/mailboxes',
    'api.send.title': 'Send a message',
    'api.send.body': 'The From domain must belong to the token account. When verified sending is enabled, complete the domain DNS checks before sending.',
    'api.curl': `curl -X POST https://mail.example.com/api/send \\
  -H 'Authorization: Bearer <USER_API_TOKEN>' \\
  -H 'Content-Type: application/json' \\
  -d '{
    "from": "noreply@example.com",
    "to": "user@example.com",
    "subject": "Hello from MailHub",
    "text": "Signed with DKIM and queued by MailHub."
  }'`,
    'api.fields.name': 'Field',
    'api.fields.required': 'Required',
    'api.fields.description': 'Description',
    'api.field.from': 'sender address on an account-owned domain',
    'api.field.to': 'recipient string or an address array',
    'api.field.subject': 'defaults to (no subject)',
    'api.field.text': 'plain-text body',
    'api.field.html': 'HTML body; required when enabling open or click tracking',
    'api.field.tracking': 'true/false, or { opens, clicks }; rewrites HTML only',
    'api.field.relay': 'an account-owned outbound SMTP relay ID',
    'api.responseLabel': '202 response',
    'api.response': `{
  "eventId": 42,
  "queued": true,
  "domain": "example.com",
  "recipients": ["user@example.com"],
  "smtp": "Message queued",
  "queueId": "AB12CD34",
  "tracking": { "enabled": false, "opens": false, "clicks": false }
}`,
    'api.note': 'A 202 response means MailHub accepted the message for SMTP delivery. Use the console delivery log or webhooks to observe the later result.',
    'mailboxes.title': 'Mailbox API and clients',
    'mailboxes.sub': 'Create a persistent address for ongoing work, or an expiring address for a short-lived workflow.',
    'mailboxes.api.title': 'Mailbox API scope',
    'mailboxes.api.body': 'POST to /api/mailboxes with a token holding mailboxes:write. The target domain must belong to that account.',
    'mailboxes.api.mode': 'permanent or temporary',
    'mailboxes.api.address': 'use a full address, or choose domain plus localPart',
    'mailboxes.api.expires': 'required for temporary mailboxes; 5 minutes to 30 days',
    'mailboxes.api.password': 'optional; a secure password is returned once when omitted',
    'mailboxes.client.title': 'Use the returned configuration',
    'mailboxes.client.body': 'Creation returns the address, password, expiration, and ready-to-use IMAP, POP3, and SMTP settings.',
    'mailboxes.client.imap': 'recommended for synchronized folders and sent mail',
    'mailboxes.client.pop3': 'for download-oriented clients',
    'mailboxes.client.smtp': 'use the same full mailbox address and password to send',
    'mailboxes.permanent.label': 'POST /api/mailboxes - permanent',
    'mailboxes.permanent.curl': `curl -X POST https://mail.example.com/api/mailboxes -H 'Authorization: Bearer <MAILBOX_API_TOKEN>' -H 'Content-Type: application/json' -d '{
  "mode": "permanent",
  "address": "support@example.com",
  "password": "<MAILBOX_PASSWORD>",
  "displayName": "Support",
  "aliases": ["help"],
  "forwardTo": ["archive@example.net"],
  "keepForwarded": true,
  "quotaMb": 1024
}'`,
    'mailboxes.temporary.label': 'POST /api/mailboxes - temporary',
    'mailboxes.temporary.curl': `curl -X POST https://mail.example.com/api/mailboxes -H 'Authorization: Bearer <MAILBOX_API_TOKEN>' -H 'Content-Type: application/json' -d '{
  "mode": "temporary",
  "domain": "example.com",
  "expiresInMinutes": 60
}'`,
    'mailboxes.list.curl': "curl -H 'Authorization: Bearer <MAILBOX_API_TOKEN>' https://mail.example.com/api/mailboxes",
    'mailboxes.responseLabel': '201 creation response',
    'mailboxes.response': `{
  "mailbox": {
    "address": "tmp-a1b2c3@example.com",
    "temporary": true,
    "expiresAt": "2026-07-15T12:00:00.000Z"
  },
  "password": "<GENERATED_MAILBOX_PASSWORD>",
  "clientConfig": {
    "incoming": { "protocol": "IMAP", "host": "mail.example.com", "port": 993, "security": "IMAPS" },
    "pop3": { "protocol": "POP3", "host": "mail.example.com", "port": 995, "security": "POP3S" },
    "outgoing": { "protocol": "SMTP", "host": "mail.example.com", "port": 465, "security": "SMTPS" }
  }
}`,
    'mailboxes.lifecycle.password': 'The returned password is the only opportunity to read an automatically generated password.',
    'mailboxes.lifecycle.temporary': 'A temporary mailbox expires after the requested interval and then stops receiving mail and authenticating.',
    'mailboxes.lifecycle.list': 'Use mailboxes:read to list mailbox metadata; passwords are never returned by the list endpoint.',
    'receiving.title': 'Receiving mail',
    'receiving.sub': 'Mail arrives through the domain MX record. Read it in MailHub Inbox or through standard IMAP/POP3 clients; there is no separate inbound Bearer API.',
    'receiving.delivery.title': 'Inbound delivery',
    'receiving.delivery.body': 'Set the domain MX record to the receiving host. External mail servers then deliver to SMTP port 25, and MailHub stores mail for an existing mailbox, alias, or catch-all target.',
    'receiving.routing.title': 'Mailbox, aliases, and catch-all',
    'receiving.routing.body': 'Create a full mailbox address first. Add aliases or forwarding on that mailbox, and configure the domain catch-all in the console to route unknown local parts to a mailbox or another address.',
    'receiving.protocols.protocol': 'Protocol',
    'receiving.protocols.ports': 'Recommended ports',
    'receiving.protocols.security': 'Security',
    'receiving.protocols.use': 'Use',
    'receiving.protocols.imapSecurity': 'SSL/TLS or STARTTLS',
    'receiving.protocols.imapUse': 'recommended for synchronized folders',
    'receiving.protocols.pop3Security': 'SSL/TLS or STLS',
    'receiving.protocols.pop3Use': 'download-oriented clients',
    'receiving.protocols.smtpSecurity': 'SMTPS or STARTTLS',
    'receiving.protocols.smtpUse': 'send with the same mailbox address and password',
    'receiving.folders': 'IMAP exposes INBOX, Sent, Drafts, Trash, Junk, and Archive. Use IMAP when the client should synchronize these folders and save sent messages.',
    'domainsDoc.title': 'Domain configuration',
    'domainsDoc.sub': 'Create the domain in MailHub first. Its DNS panel is the source of truth for your exact verification, DKIM, SPF, DMARC, and sender-host values.',
    'domainsDoc.col.purpose': 'Purpose',
    'domainsDoc.col.record': 'Record',
    'domainsDoc.col.requirement': 'Requirement',
    'domainsDoc.row.verify': 'Domain ownership',
    'domainsDoc.row.verifyValue': 'Publish the verification value generated in the console.',
    'domainsDoc.row.dkim': 'Publish the public key generated for this domain.',
    'domainsDoc.row.spf': 'Keep one SPF record and include the sender IP/host required by MailHub.',
    'domainsDoc.row.dmarc': 'Start with monitoring, then strengthen the policy after alignment is verified.',
    'domainsDoc.row.mx': 'Inbound mail',
    'domainsDoc.row.mxValue': 'Point MX to the MailHub receiving host and ensure that host has an A/AAAA record.',
    'domainsDoc.note': 'For reliable delivery, also configure the sending IP\'s PTR to match the MailHub sending hostname and allow the documented SMTP, IMAP, and POP3 ports through your firewall.',
    'smtp.title': 'SMTP submission',
    'smtp.sub': 'Default listener ports (override in your deployment):',
    'smtp.app.title': 'Application SMTP',
    'smtp.app.body': 'Create an SMTP login credential in the console for an application. Use that credential with an account-owned From domain.',
    'smtp.mailbox.title': 'Mailbox SMTP',
    'smtp.mailbox.body': 'A created mailbox can also authenticate over SMTP with its full email address and password. Use the same credentials for IMAP or POP3.',
    'smtp.note': 'Prefer 465 or 587 for sending, 993 for IMAP, and 995 for POP3. The creation response is the source of truth when a deployment overrides default ports or TLS listeners.',
    'errors.title': 'Responses and common errors',
    'errors.sub': 'The API returns JSON. Validate the HTTP status before consuming a response body.',
    'errors.status': 'Status',
    'errors.meaning': 'Meaning',
    'errors.action': 'What to do',
    'errors.201.meaning': 'Mailbox created',
    'errors.201.action': 'Store the one-time password and clientConfig.',
    'errors.202.meaning': 'Message accepted for SMTP delivery',
    'errors.202.action': 'Inspect delivery logs or webhooks for later delivery status.',
    'errors.400.meaning': 'Invalid request or domain ownership rule',
    'errors.400.action': 'Read the JSON error and correct the request body or domain setup.',
    'errors.401.meaning': 'Missing, invalid, revoked, or expired token',
    'errors.401.action': 'Create or rotate a valid token.',
    'errors.403.meaning': 'Token does not have the required scope',
    'errors.403.action': 'Grant the minimum required scope in Console > API Tokens.',
    'errors.409.meaning': 'Mailbox address already exists',
    'errors.409.action': 'Choose another address or use the existing mailbox.',
    'webhooks.title': 'Delivery webhooks',
    'webhooks.sub': 'Terminal events only — signed HTTPS callbacks to your systems.',
    'webhooks.col.status': 'Status',
    'webhooks.col.type': 'type',
    'webhooks.sig': 'Signature header:',
    'ctaBand.title': 'Ready to send?',
    'ctaBand.sub': 'Create an account, add a domain, and ship your first message in minutes.',
    'footer.tag': 'Self-hosted email delivery control plane'
  }
};

export function detectLocale() {
  try {
    const stored = localStorage.getItem(LANDING_LOCALE_KEY);
    if (stored && supportedLocales.includes(stored)) return stored;
  } catch {
    /* ignore */
  }
  const nav = typeof navigator !== 'undefined' ? navigator.language || '' : '';
  return nav.toLowerCase().startsWith('zh') ? 'zh-CN' : 'en-US';
}

export function t(locale, key) {
  return messages[locale]?.[key] ?? messages['en-US'][key] ?? key;
}

export function setStoredLocale(locale) {
  try {
    localStorage.setItem(LANDING_LOCALE_KEY, locale);
  } catch {
    /* ignore */
  }
}