export interface ErrorCta {
  label: string;
  action?: 'unlock' | 'reload_extension' | 'open_setup';
}

export interface ErrorCopy {
  title: string;
  body: string;
  cta?: ErrorCta;
}

const UNLOCK_CTA: ErrorCta = { label: 'Unlock vault', action: 'unlock' };

export const ERROR_COPY: Record<string, ErrorCopy> = {
  vault_locked: {
    title: 'Vault locked',
    body: 'Unlock your vault to continue.',
    cta: UNLOCK_CTA,
  },
  unauthorized_sender: {
    title: 'Action not allowed',
    body: 'This action is not allowed from here.',
  },
  unknown_message_type: {
    title: 'Internal error',
    body: 'The extension received an unknown request — try reloading.',
    cta: { label: 'Reload extension', action: 'reload_extension' },
  },
  origin_mismatch: {
    title: 'Wrong site',
    body: 'This login belongs to a different site — refusing to leak credentials cross-origin.',
  },
  not_a_login: {
    title: 'Not a login',
    body: 'That item does not have a username and password to fill.',
  },
  no_totp: {
    title: 'No 2FA on this item',
    body: 'This item does not have a TOTP secret configured.',
  },
  invalid_sender_url: {
    title: 'Cannot read tab URL',
    body: 'The current tab has no recognizable URL — try reloading the page.',
  },
  tab_navigated: {
    title: 'Tab changed',
    body: 'The browser tab changed before the action could complete — try again.',
  },
  captured_tab_gone: {
    title: 'Tab is gone',
    body: 'The browser tab closed before the action could complete — try again.',
  },
  item_not_found: {
    title: 'Item not found',
    body: 'That item is no longer in the vault — it may have been deleted from another device.',
  },
  attachment_not_found: {
    title: 'Attachment missing',
    body: 'The attachment is referenced in the item but is not present in the vault.',
  },
  upload_failed: {
    title: 'Upload failed',
    body: 'Could not upload the attachment — check your connection and try again.',
  },
  download_failed: {
    title: 'Download failed',
    body: 'Could not download the attachment — check your connection and try again.',
  },
  'invalid base32 secret': {
    title: 'Invalid secret',
    body: 'The TOTP secret must be valid Base32 (letters A-Z and digits 2-7 only).',
  },
  'no items to import': {
    title: 'Nothing to import',
    body: 'The CSV did not contain any importable items.',
  },
  'no reference image stored locally': {
    title: 'No reference image',
    body: 'This device has no reference image saved locally — re-attach the device or restore from backup.',
  },
  'remote already contains a Relicario vault': {
    title: 'Vault already exists',
    body: 'The selected repository already contains a vault — use Attach existing instead of Create new.',
  },
  'Extension not configured. Run setup first.': {
    title: 'Extension not configured',
    body: 'Run setup before using this action.',
    cta: { label: 'Open setup', action: 'open_setup' },
  },
  'Reference image not set. Run setup first.': {
    title: 'Reference image missing',
    body: 'Run setup to save your reference image.',
    cta: { label: 'Open setup', action: 'open_setup' },
  },
};

export function lookupErrorCopy(code: string): ErrorCopy {
  return ERROR_COPY[code] ?? {
    title: 'Something went wrong',
    body: code,
  };
}