// ── SQL for Backpacks (PLAN_REDESIGNS §11.3.2) ────────────────────────────
//
// What each server's last hello said about Backpacks. The backpacks themselves
// are never stored (§11.3.2: live, never stored); this file only reads the
// report the plugin makes about the plugin.

const core = require('../../core')

const STATE = 'rust_server_state'

/**
 * One server's report: `{ serverId, backpacks }`, with `backpacks` as the
 * driver hands JSON_EXTRACT back — text, or null for a server whose plugin
 * never said (no state yet, or a plugin before protocol 14).
 */
async function reportFor(serverId) {
  const rows = await core.query(
    `SELECT server_id AS serverId,
            JSON_EXTRACT(raw, '$.integrations.backpacks') AS backpacks
       FROM ${STATE}
      WHERE server_id = ?`,
    [serverId],
  )
  return rows[0] || null
}

/** Every server's report, for the step's size list. */
async function reports() {
  return core.query(
    `SELECT server_id AS serverId,
            JSON_EXTRACT(raw, '$.integrations.backpacks') AS backpacks
       FROM ${STATE}`,
  )
}

module.exports = { reportFor, reports }