/**
 * Minimal zh/en copy for the sidebar. The copy follows the DSH i18n system:
 * the client apply attaches the locale service (`ctx.locale`, provided by
 * `@deepseek-ai/dsh-client-locale`) through {@link attachLocale}, and
 * `t()`/`isZh()` resolve the active locale from it — the Host-backed
 * `locale.preference` wins over the raw browser language and switches live.
 * Without an attached service (standalone/test compositions) the browser
 * language is used, matching the previous behavior. The dictionaries are
 * also registered into the DSH locale registry under {@link LOCALE_NS}.
 */

/** The zh dictionary (also registered into the DSH locale registry under {@link LOCALE_NS}). */
export const zh = {
  explorer: '资源管理器',
  git: '源代码管理',
  terminal: '终端',
  editor: '编辑器',
  newTab: '新建标签页',
  openExplorer: '资源管理器',
  openGit: 'Git 面板',
  newTerminal: '新终端',
  terminalLimit: '终端数量已达上限 (3)',
  close: '关闭',
  collapse: '折叠侧边栏',
  expand: '展开侧边栏',
  collapseBottomPanel: '折叠底部面板',
  expandBottomPanel: '展开底部面板',
  terminalError: '终端连接失败',
  terminalConnectFailed: '终端多次连接失败',
  terminalRetry: '重试',
  preview: '预览',
  edit: '编辑',
  refresh: '刷新',
  save: '保存',
  saved: '已保存',
  unsaved: '未保存',
  saveFailed: '保存失败',
  truncation: '文件过大，仅显示前 512KB',
  binary: '二进制文件，无法预览',
  loading: '加载中…',
  error: '加载失败',
  retry: '重试',
  splitLeft: '向左分栏',
  splitRight: '向右分栏',
  splitUp: '向上分栏',
  splitDown: '向下分栏',
  notRepo: '当前目录不是 git 仓库',
  noChanges: '没有变更',
  stage: '暂存',
  unstage: '取消暂存',
  stageAll: '全部暂存',
  unstageAll: '全部取消暂存',
  commitPlaceholder: '提交信息 (Ctrl+Enter)',
  commit: '提交',
  commitError: '提交失败',
  branch: '分支',
  checkoutError: '切换分支失败',
  history: '历史',
  changes: '变更',
  staged: '已暂存',
  unstaged: '未暂存',
  cancel: '取消',
  diffEmpty: '没有文本差异',
  diffLoadError: '加载差异失败',
  diffBinary: '二进制',
  diffAdded: '新增',
  diffDeleted: '删除',
  diffRenamed: '重命名',
  diffExpand: '展开其余 {count} 行',
  diffCollapse: '收起',
  discard: '放弃更改',
  discardTitle: '放弃更改',
  discardDesc: '将丢弃「{path}」的工作区修改（不可恢复）。',
  viewCommitDiff: '查看提交差异',
  copyShortHash: '复制短哈希',
  copyFullHash: '复制完整哈希',
  copySubject: '复制提交信息',
  revertCommit: '还原此提交',
  revertTitle: '还原此提交',
  revertDesc: '将在当前分支创建一个反转「{subject}」的新提交。',
  cherryPickCommit: '捡取此提交',
  cherryPickTitle: '捡取此提交',
  cherryPickDesc: '将「{subject}」的更改应用到当前分支。',
  timeJustNow: '刚刚',
  timeMinutesAgo: '{n} 分钟前',
  timeHoursAgo: '{n} 小时前',
  timeYesterday: '昨天',
  loadMore: '加载更多',
  historyLoadError: '加载更多历史失败',
  produced: '本次产出',
  producedOpen: '在侧边栏中打开',
  disconnected: '终端连接断开，重连中…',
  exited: '终端进程已退出',
  noSession: '选择一个会话以使用侧边栏',
  pluginNotLoaded: '插件未加载，标签页暂不可用：',
  hiddenFiles: '隐藏文件',
  parent: '上级目录',
  copied: '已复制',
  copy: '复制',
  newFile: '新文件',
  openEditor: '打开编辑器',
  gitDetail: '查看变更详情',
  referenceFile: '@文件',
  addToConversation: '添加到对话',
  copyRelative: '复制相对地址',
  copyAbsolute: '复制绝对地址',
  download: '下载',
  settingsNav: '侧边卡片',
  settingsIntro: '管理侧边卡片的显示内容与默认行为',
  settingsPopupDesc: '为「{feature}」配置相关选项',
  settingsDone: '完成',
  settingsOpenTitle: '新会话默认打开',
  settingsOpenDesc: '新建会话时自动展开侧边卡片；已存在的会话保持各自布局',
  settingsWidthTitle: '默认宽度占比',
  settingsWidthDesc: '新建会话时侧边卡片占窗口宽度的百分比 (20–60)',
  settingsWidthSuffix: '%',
  settingsOpenPathTitle: '聊天区文件在侧边栏打开',
  settingsOpenPathDesc: '在聊天里点击文件链接（工具行、产物列表、文件提及）时，在侧边栏编辑器中打开，不再调用系统默认应用',
  settingsSaveFailed: '保存失败',
  settingsConflict: '设置已被其他窗口修改，请重试',
  binaryNoPreview: '此文件类型不支持预览',
  downloadToView: '下载查看',
  settingsSubagentTitle: '检测到子代理时自动展开任务管理页',
  settingsSubagentDesc: '当前会话产生新的子代理时，自动展开侧边栏并打开任务管理页；关闭后需手动打开',
  settingsJobsTitle: '有新后台任务时自动展开后台任务页',
  settingsJobsDesc: '当前会话出现新的后台任务时，自动展开侧边栏并打开后台任务页（每个新任务都会触发）；关闭后需手动打开',
  settingsToolsTitle: '为模型注入终端工具',
  settingsToolsDesc: '开启后，模型可通过 terminal_create 等 8 个工具创建并操作侧边栏终端（默认关闭）',
  settingsBottomTerminalTitle: '底部面板首次展开自动开终端',
  settingsBottomTerminalDesc: '每次会话中第一次展开底部面板时，尝试在底部面板自动打开一个新终端标签（终端数量上限仍会限制；默认开启）',
  settingsFontFamilyTitle: '终端字体',
  settingsFontFamilyDesc: '自定义终端字体族（CSS font-family，如 "JetBrains Mono", monospace；留空跟随主题等宽字体）',
  settingsFontFamilyPlaceholder: '"JetBrains Mono", monospace',
  settingsFontSizeTitle: '终端字号',
  settingsFontSizeDesc: '终端字号（9–32，默认 13）',
  settingsFontSizeSuffix: 'px',
  settingsTabsTitle: '侧边栏内容',
  settingsViewersTitle: '文件预览',
  settingsGeneralTitle: '常规',
  settingsPopup: '功能设置',
  settingsViewerCatchAll: '兜底：任意文件',
  viewerImage: '图片',
  viewerPdf: 'PDF',
  viewerMarkdown: 'Markdown',
  viewerCode: '代码',
  viewerBinary: '二进制下载',
  viewerHtml: 'HTML',
  browser: '浏览器',
  browserPlaceholder: '输入网址，例如 example.com',
  browserGo: '前往',
  browserBack: '后退',
  browserForward: '前进',
  browserStart: '输入网址开始浏览（沙箱模式）',
  browserBlockedScheme: '已阻止：仅支持 http/https 链接',
  browserBlockedLoopback: '已阻止：不允许在浏览器中访问本机或内部地址',
  browserInvalid: '无效的网址',
  browserNoSandboxWarning: '沙箱已关闭：当前页面与界面同源，拥有完整会话权限（可在设置中恢复）',
  htmlNoSandboxWarning: '沙箱已关闭：此 HTML 与界面同源，可读取会话文件与内部接口（可在设置中恢复）',
  sandboxStatusOn: '沙箱模式：已启用 · 页面无法访问界面数据与本地文件，登录态与第三方 Cookie 可能不可用',
  sandboxUnlock: '临时解锁（不安全）',
  sandboxRestore: '恢复沙箱',
  settingsHtmlDefaultUnsafeTitle: 'HTML 预览默认以非沙箱模式打开（不安全）',
  settingsHtmlDefaultUnsafeDesc: '开启后，每次打开 HTML 文件时预览默认处于非沙箱状态（与界面同源，可读取会话文件与内部接口）；可在状态行临时恢复沙箱',
  settingsHtmlSandboxTitle: '关闭 HTML 预览沙箱（不安全）',
  settingsHtmlSandboxDesc: '关闭后，预览的 HTML 将与界面同源运行，可读取会话文件、本地存储并调用内部接口。仅对完全可信的文件开启',
  settingsBrowserSandboxTitle: '关闭浏览器沙箱（不安全）',
  settingsBrowserSandboxDesc: '关闭后，访问的任何网站都将与界面同源运行，可读取会话数据并冒充你的登录状态。仅对完全可信的站点开启',
  settingsBrowserLinksTitle: '聊天区外链在侧边栏打开',
  settingsBrowserLinksDesc: '开启后，点击聊天或界面中的 http/https 外链时在侧边栏浏览器中打开，不再弹出新窗口；Ctrl/Cmd 点击可临时放行',
  browserOpenExternal: '在浏览器中打开',
  browserEmbedBlocked: '{host} 拒绝了嵌入请求',
  browserEmbedBlockedDesc: '该站点通过 X-Frame-Options / frame-ancestors 禁止在其它页面中显示，无法在侧边栏内加载。可在浏览器中直接打开',
  browserEmbedAnyway: '仍然加载',
  subagent: '任务管理',
  openSubagent: '任务管理',
  subagentMainAgent: '主代理',
  subagentEmpty: '暂无子代理',
  subagentEmptyDesc: '当前主代理派生的子代理将显示在这里',
  subagentRunning: '运行中',
  subagentInactive: '空闲',
  subagentModeOneShot: '一次性',
  subagentModeContinuable: '可续接',
  subagentCount: '{count} 个子代理',
  subagentCountRunning: '{count} 个子代理 · {running} 运行中',
  subagentDiagCorrupt: '目录损坏',
  subagentDiagUnsupported: '不支持的条目',
  subagentDiagUnavailable: '不可用',
  subagentThinking: '思考中…',
  jobs: '后台任务',
  jobsCount: '{count} 个后台任务',
  jobsCountRunning: '{count} 个后台任务 · {running} 运行中',
  jobStatusRunning: '运行中',
  jobStatusStopping: '终止中',
  jobStatusCompleted: '已完成',
  jobStatusKilled: '已终止',
  jobStatusFailed: '失败',
  jobDurationSeconds: '{seconds} 秒',
  jobDurationMinutes: '{minutes} 分 {seconds} 秒',
  jobDurationHours: '{hours} 小时 {minutes} 分',
  jobViewOutput: '查看输出',
  jobHideOutput: '收起输出',
  jobNoOutput: '暂无输出',
  jobNotReadYet: '等待模型读取该任务的输出（模型执行 job_output 后，输出会显示在这里）',
  jobOutputTruncated: '输出过长，已截断显示',
  jobOutputError: '输出读取失败',
  jobKill: '终止',
  jobKillConfirm: '再次点击确认终止',
  jobKillError: '终止失败',
  addPluginsTabCard: '添加 Tab 插件',
  addPluginsTabCardDesc: '注册新的侧边栏页面',
  addPluginsViewerCard: '添加预览插件',
  addPluginsViewerCardDesc: '注册新的文件类型预览',
  addPluginsTabDesc: '侧边栏页面（Tab）可以由插件扩展。插件通过 ctx.betterSidebar 服务注册；点击「安装」复制安装命令，粘贴到 DSH 所在环境的终端执行。',
  addPluginsViewerDesc: '文件预览器可以由插件扩展。插件通过 ctx.betterSidebar 服务注册；点击「安装」复制安装命令，粘贴到 DSH 所在环境的终端执行。',
  addPluginsBrowseMore: '在 GitHub 上浏览更多插件（topic: dsh-better-sidebar）',
  addPluginsRecommended: '推荐插件',
  addPluginsEmpty: '暂未收录插件，欢迎在 GitHub topic 下发布你的插件',
  openPlugin: '跳转',
  copyInstall: '复制安装命令',
  pluginOfficeDesc: '为 better-sidebar 编辑器提供 Office 三件套预览（.docx / .xlsx / .pptx），把重型 Office 渲染库拆出主包、按需安装',
}

/** The en dictionary (key-set-equal to zh, enforced by the type annotation). */
export const en: Record<keyof typeof zh, string> = {
  explorer: 'Explorer',
  git: 'Source Control',
  terminal: 'Terminal',
  editor: 'Editor',
  newTab: 'New tab',
  openExplorer: 'Explorer',
  openGit: 'Git panel',
  newTerminal: 'New terminal',
  terminalLimit: 'Terminal limit reached (3)',
  close: 'Close',
  collapse: 'Collapse sidebar',
  expand: 'Expand sidebar',
  collapseBottomPanel: 'Collapse bottom panel',
  expandBottomPanel: 'Expand bottom panel',
  terminalError: 'Terminal connection failed',
  terminalConnectFailed: 'Terminal failed to connect repeatedly',
  terminalRetry: 'Retry',
  preview: 'Preview',
  edit: 'Edit',
  refresh: 'Refresh',
  save: 'Save',
  saved: 'Saved',
  unsaved: 'Unsaved',
  saveFailed: 'Save failed',
  truncation: 'File too large — showing the first 512KB',
  binary: 'Binary file, preview unavailable',
  loading: 'Loading…',
  error: 'Failed to load',
  retry: 'Retry',
  splitLeft: 'Split left',
  splitRight: 'Split right',
  splitUp: 'Split up',
  splitDown: 'Split down',
  notRepo: 'This directory is not a git repository',
  noChanges: 'No changes',
  stage: 'Stage',
  unstage: 'Unstage',
  stageAll: 'Stage all',
  unstageAll: 'Unstage all',
  commitPlaceholder: 'Commit message (Ctrl+Enter)',
  commit: 'Commit',
  commitError: 'Commit failed',
  branch: 'Branch',
  checkoutError: 'Branch switch failed',
  history: 'History',
  changes: 'Changes',
  staged: 'Staged',
  unstaged: 'Unstaged',
  cancel: 'Cancel',
  diffEmpty: 'No text changes',
  diffLoadError: 'Failed to load diff',
  diffBinary: 'Binary',
  diffAdded: 'Added',
  diffDeleted: 'Deleted',
  diffRenamed: 'Renamed',
  diffExpand: 'Expand {count} more rows',
  diffCollapse: 'Collapse',
  discard: 'Discard changes',
  discardTitle: 'Discard changes',
  discardDesc: 'This discards the worktree changes of "{path}" (not recoverable).',
  viewCommitDiff: 'View commit diff',
  copyShortHash: 'Copy short hash',
  copyFullHash: 'Copy full hash',
  copySubject: 'Copy subject',
  revertCommit: 'Revert commit',
  revertTitle: 'Revert commit',
  revertDesc: 'Create a new commit on the current branch that reverts "{subject}".',
  cherryPickCommit: 'Cherry-pick commit',
  cherryPickTitle: 'Cherry-pick commit',
  cherryPickDesc: 'Apply the changes of "{subject}" to the current branch.',
  timeJustNow: 'just now',
  timeMinutesAgo: '{n} min ago',
  timeHoursAgo: '{n} h ago',
  timeYesterday: 'yesterday',
  loadMore: 'Load more',
  historyLoadError: 'Failed to load more history',
  produced: 'Produced',
  producedOpen: 'Open in sidebar',
  disconnected: 'Terminal disconnected, reconnecting…',
  exited: 'Terminal process exited',
  noSession: 'Select a conversation to use the sidebar',
  pluginNotLoaded: 'Plugin not loaded; tab unavailable:',
  hiddenFiles: 'Hidden files',
  parent: 'Parent directory',
  copied: 'Copied',
  copy: 'Copy',
  newFile: 'New file',
  openEditor: 'Open editor',
  gitDetail: 'View change details',
  referenceFile: '@file',
  addToConversation: 'Add to conversation',
  copyRelative: 'Copy relative path',
  copyAbsolute: 'Copy absolute path',
  download: 'Download',
  settingsNav: 'Side card',
  settingsIntro: 'Manage what the side card shows and how it behaves',
  settingsPopupDesc: 'Configure related options for {feature}',
  settingsDone: 'Done',
  settingsOpenTitle: 'Open by default for new conversations',
  settingsOpenDesc: 'Expand the side card automatically for brand-new conversations; existing conversations keep their own layouts',
  settingsWidthTitle: 'Default width share',
  settingsWidthDesc: 'The side card\'s default share of the window width for new conversations (20–60)',
  settingsWidthSuffix: '%',
  settingsOpenPathTitle: 'Open chat files in the sidebar',
  settingsOpenPathDesc: 'Open file links in the chat (tool rows, produced files, mentions) in the sidebar editor instead of the system default app',
  settingsSaveFailed: 'Failed to save',
  settingsConflict: 'The setting changed in another window — please retry',
  binaryNoPreview: 'This file type cannot be previewed',
  downloadToView: 'Download to view',
  settingsSubagentTitle: 'Auto-open the Tasks page when a subagent appears',
  settingsSubagentDesc: 'Expand the side card and open the Tasks page when the current conversation spawns a new subagent; turn off to open it manually',
  settingsJobsTitle: 'Auto-open the Jobs page on a new background job',
  settingsJobsDesc: 'Expand the side card and open the Jobs page whenever a new background job appears for the current conversation (every new job triggers); turn off to open it manually',
  settingsToolsTitle: 'Inject terminal tools for the model',
  settingsToolsDesc: 'When enabled, the model can create and drive sidebar terminals through the 8 terminal_* tools (off by default)',
  settingsBottomTerminalTitle: 'Auto-open a terminal on the bottom panel\'s first expansion',
  settingsBottomTerminalDesc: 'When the bottom panel is expanded for the first time in a session, try to open a fresh terminal tab there (the terminal quota still applies; on by default)',
  settingsFontFamilyTitle: 'Terminal font family',
  settingsFontFamilyDesc: 'Custom terminal font family (a CSS font-family stack like "JetBrains Mono", monospace; leave empty to follow the theme\'s monospace font)',
  settingsFontFamilyPlaceholder: '"JetBrains Mono", monospace',
  settingsFontSizeTitle: 'Terminal font size',
  settingsFontSizeDesc: 'Terminal font size in px (9–32, default 13)',
  settingsFontSizeSuffix: 'px',
  settingsTabsTitle: 'Sidebar content',
  settingsViewersTitle: 'File viewers',
  settingsGeneralTitle: 'General',
  settingsPopup: 'Feature settings',
  settingsViewerCatchAll: 'Catch-all: any file',
  viewerImage: 'Image',
  viewerPdf: 'PDF',
  viewerMarkdown: 'Markdown',
  viewerCode: 'Code',
  viewerBinary: 'Binary download',
  viewerHtml: 'HTML',
  browser: 'Browser',
  browserPlaceholder: 'Enter a URL, e.g. example.com',
  browserGo: 'Go',
  browserBack: 'Back',
  browserForward: 'Forward',
  browserStart: 'Enter a URL to start browsing (sandbox mode)',
  browserBlockedScheme: 'Blocked: only http/https URLs are allowed',
  browserBlockedLoopback: 'Blocked: local and internal addresses cannot be browsed here',
  browserInvalid: 'Invalid URL',
  browserNoSandboxWarning: 'Sandbox off: the current page runs with full GUI privileges (re-enable in settings)',
  htmlNoSandboxWarning: 'Sandbox off: this HTML runs with full GUI privileges (re-enable in settings)',
  sandboxStatusOn: 'Sandbox mode: on · pages cannot access the GUI\'s data or local files; logins and third-party cookies may not work',
  sandboxUnlock: 'Temporarily disable (unsafe)',
  sandboxRestore: 'Restore sandbox',
  settingsHtmlDefaultUnsafeTitle: 'Open HTML previews unsandboxed by default (unsafe)',
  settingsHtmlDefaultUnsafeDesc: 'When on, every newly opened HTML preview starts in the unsandboxed state (same origin as the GUI — it can read session files and internal APIs); the status row still offers a one-tap restore',
  settingsHtmlSandboxTitle: 'Disable HTML preview sandbox (unsafe)',
  settingsHtmlSandboxDesc: 'With the sandbox off, previewed HTML runs with the same origin as the GUI: it can read session files, local storage and call internal APIs. Only enable for fully trusted files',
  settingsBrowserSandboxTitle: 'Disable browser sandbox (unsafe)',
  settingsBrowserSandboxDesc: 'With the sandbox off, any visited site runs with the same origin as the GUI: it can read session data and act as your logged-in session. Only enable for fully trusted sites',
  settingsBrowserLinksTitle: 'Open chat external links in the sidebar',
  settingsBrowserLinksDesc: 'When on, clicking an http/https external link in the chat or GUI opens the sidebar browser instead of a new window; Ctrl/Cmd+click always bypasses',
  browserOpenExternal: 'Open in browser',
  browserEmbedBlocked: '{host} refused to be embedded',
  browserEmbedBlockedDesc: 'The site forbids being displayed inside other pages (X-Frame-Options / frame-ancestors), so it cannot load in the sidebar. Open it directly in your browser instead.',
  browserEmbedAnyway: 'Load anyway',
  subagent: 'Tasks',
  openSubagent: 'Tasks',
  subagentMainAgent: 'Main agent',
  subagentEmpty: 'No subagents',
  subagentEmptyDesc: 'Subagents spawned under the main agent will appear here',
  subagentRunning: 'Running',
  subagentInactive: 'Inactive',
  subagentModeOneShot: 'One-shot',
  subagentModeContinuable: 'Continuable',
  subagentCount: '{count} subagents',
  subagentCountRunning: '{count} subagents · {running} running',
  subagentDiagCorrupt: 'Corrupt',
  subagentDiagUnsupported: 'Unsupported',
  subagentDiagUnavailable: 'Unavailable',
  subagentThinking: 'Thinking…',
  jobs: 'Background jobs',
  jobsCount: '{count} background jobs',
  jobsCountRunning: '{count} background jobs · {running} running',
  jobStatusRunning: 'Running',
  jobStatusStopping: 'Stopping',
  jobStatusCompleted: 'Completed',
  jobStatusKilled: 'Killed',
  jobStatusFailed: 'Failed',
  jobDurationSeconds: '{seconds}s',
  jobDurationMinutes: '{minutes}m {seconds}s',
  jobDurationHours: '{hours}h {minutes}m',
  jobViewOutput: 'View output',
  jobHideOutput: 'Hide output',
  jobNoOutput: 'No output yet',
  jobNotReadYet: 'Waiting for the model to read this job; its output appears here once the model runs job_output',
  jobOutputTruncated: 'Output truncated',
  jobOutputError: 'Failed to read output',
  jobKill: 'Kill',
  jobKillConfirm: 'Click again to confirm kill',
  jobKillError: 'Kill failed',
  addPluginsTabCard: 'Add tab plugins',
  addPluginsTabCardDesc: 'Register a new sidebar page',
  addPluginsViewerCard: 'Add preview plugins',
  addPluginsViewerCardDesc: 'Register a file-type preview',
  addPluginsTabDesc: 'Sidebar pages (tabs) can be extended by plugins. Plugins register through the ctx.betterSidebar service; clicking Install copies the install command — paste it into a terminal where your DSH profile lives and run it.',
  addPluginsViewerDesc: 'File previewers can be extended by plugins. Plugins register through the ctx.betterSidebar service; clicking Install copies the install command — paste it into a terminal where your DSH profile lives and run it.',
  addPluginsBrowseMore: 'Browse more plugins on GitHub (topic: dsh-better-sidebar)',
  addPluginsRecommended: 'Recommended plugins',
  addPluginsEmpty: 'No plugins curated yet — publish yours under the GitHub topic',
  openPlugin: 'Open',
  copyInstall: 'Copy install command',
  pluginOfficeDesc: 'Office-suite preview (.docx / .xlsx / .pptx) for the better-sidebar editor, keeping the heavy Office render libraries out of the core bundle',
}

/**
 * The dictionary namespace this plugin owns in the DSH locale registry
 * (`'sidebar'` is taken by DSH's own ui-sidebar, hence this distinct name).
 */
export const LOCALE_NS = 'betterSidebar'

/** The DSH locale service attached by the client apply (absent → browser detection). */
let localeService: { getSnapshot(): { active: string } } | undefined

/**
 * Attach (or detach, with undefined) the DSH locale service. The sidebar
 * mounts its own React root outside the slot system's locale seat, so the
 * service rides this module-level holder: components keep calling the plain
 * `t()` function, and the Sidebar root's locale subscription re-renders the
 * whole tree on switches.
 */
export function attachLocale(service: { getSnapshot(): { active: string } } | undefined): void {
  localeService = service
}

/**
 * The active locale id ('zh' | 'en'): the DSH locale service's snapshot when
 * attached, else the browser language.
 */
function activeLocale(): string {
  return localeService?.getSnapshot().active
    ?? (typeof navigator !== 'undefined' ? navigator.language : '')
    ?? 'en'
}

/** Translate a copy key in the active locale (zh → zh, else en). */
export type CopyKey = keyof typeof zh

/** Translate a copy key; `{name}` placeholders interpolate from `params`. */
export function t(key: CopyKey, params?: Record<string, string | number>): string {
  const dict = activeLocale().toLowerCase().startsWith('zh') ? zh : en
  let text = dict[key]
  if (params !== undefined) {
    for (const [name, value] of Object.entries(params)) {
      text = text.replaceAll(`{${name}}`, String(value))
    }
  }
  return text
}

/** Whether the active locale is Chinese (used for selectors). */
export function isZh(): boolean {
  return activeLocale().toLowerCase().startsWith('zh')
}

/** Format an ISO 8601 author date relative to now (刚刚 / N 分钟前 / N 小时前 / 昨天 / date). */
export function relativeTime(iso: string): string {
  const then = Date.parse(iso)
  if (Number.isNaN(then)) return iso
  const seconds = Math.floor((Date.now() - then) / 1000)
  if (seconds < 60) return t('timeJustNow')
  if (seconds < 3600) return t('timeMinutesAgo', { n: Math.floor(seconds / 60) })
  if (seconds < 86400) return t('timeHoursAgo', { n: Math.floor(seconds / 3600) })
  if (seconds < 172800) return t('timeYesterday')
  const date = new Date(then)
  const pad = (value: number): string => String(value).padStart(2, '0')
  return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())}`
}