// ── Report, block and hide on a chat line: what the menu offers ────────────
//
// USER_SAFETY.md §4.2. Nothing here decides what a reader may SEE — the server
// already left out what they blocked or hid, and staff's hidden lines for
// everybody else (S11). This file only turns what the server said about a line
// into which buttons its menu shows, and it is pure so a DOM-less runner can ask
// all of it.

/** The report target a chat line is filed as. Registered by `server/safety.js`. */
export const CHAT_TARGET = 'rust.chat'

/**
 * The reasons a report can give. Core's `content_reports.reason` enum, in the
 * order and words core's own forum report uses, so a member reads one list
 * wherever they report from.
 */
export const REPORT_REASONS = Object.freeze([
  ['abuse', 'Abusive or harassing'],
  ['spam', 'Spam'],
  ['sexual', 'Sexual content'],
  ['illegal', 'Illegal content'],
  ['impersonation', 'Impersonation'],
  ['other', 'Something else'],
])

/**
 * The roles that hide a line for everyone: the two core's Reports queue is open
 * to, and the two `POST /admin/rust/chat/:id/hide` admits. An editor writes
 * content and moderates none.
 */
export const HIDE_ROLES = Object.freeze(['admin', 'moderator'])

/**
 * What a chat line's menu offers this reader.
 *
 *   signIn   a signed-out reader gets one line telling them to sign in (S6)
 *   report   any signed-in reader, on any line
 *   hide     "Hide for me", likewise — a staff member's line included (S8)
 *   block    only where the server said `canBlock` (S8, S13)
 *   staff    'hide' or 'unhide' for a reader who can hide for everyone (S10)
 *
 * @param {{ kind: string, canBlock?: boolean, hidden?: boolean }} line
 * @param {{ role?: string } | null} user
 */
export function chatActions(line, user) {
  if (!line || line.kind !== 'player.chat') return null
  if (!user) return { signIn: true, report: false, hide: false, block: false, staff: null }
  const canHideForAll = HIDE_ROLES.includes(user.role)
  return {
    signIn: false,
    report: true,
    hide: true,
    block: line.canBlock === true,
    staff: canHideForAll ? (line.hidden ? 'unhide' : 'hide') : null,
  }
}