export type BarterLane = "goods" | "services" | "data" | "open";

export type BarterListing = {
  id: string;
  author: string;
  title: string;
  /** What the poster brings to the table */
  have: string;
  /** What they want back (goods, labor, crypto, favor, etc.) */
  want: string;
  lane: BarterLane;
  body: string;
  ts: number;
};

const KEY = "cyberlux-barter-v1";

function uid(): string {
  if (typeof crypto !== "undefined" && "randomUUID" in crypto) return crypto.randomUUID();
  return `b_${Date.now()}_${Math.random().toString(36).slice(2, 10)}`;
}

const seeds: BarterListing[] = [
  {
    id: "barter-seed-1",
    author: "relay_op",
    title: "Entropy dongles → signed opsec consult",
    have: "Two hardware RNG sticks, sealed.",
    want: "2h walkthrough on compartmentalized laptop setup (signals only).",
    lane: "services",
    body: "No clearnet video. Text + voice on agreed onion comms. PGP on first ping.",
    ts: Date.now() - 7200000 * 10,
  },
  {
    id: "barter-seed-2",
    author: "ledger_moth",
    title: "Monero for physical dead-tree cipher zines",
    have: "XMR at spot-ish — negotiate in-thread.",
    want: "High-res scans of 80s crypto zines, OCR optional.",
    lane: "goods",
    body: "Escrow via hub USD balance after Bitcoin verify, or agree plaintext terms in-thread.",
    ts: Date.now() - 7200000 * 6,
  },
  {
    id: "barter-seed-3",
    author: "patchbay_7",
    title: "Studio time ↔ exploit courseware slides",
    have: "4h mixing desk + mastering chain on airgapped DAW session (training scenario).",
    want: "De-weaponized slide deck on heap grooming for class (no live targets).",
    lane: "data",
    body: "You send PDF, I send stems. Both sides verify hashes before swap.",
    ts: Date.now() - 7200000 * 3,
  },
  {
    id: "barter-seed-4",
    author: "EU_shift",
    title: "Shipping label templates → mirror canary text",
    have: "Sanitized HTML snippets that look like phish (for training).",
    want: "Latest signed canary paragraph from hub ring — compare byte-for-byte.",
    lane: "open",
    body: "Teaching red-team vs blue-team reading. No live credential harvesting.",
    ts: Date.now() - 7200000 * 2,
  },
  {
    id: "barter-seed-5",
    author: "void_cartographer",
    title: "Physical meet token ↔ CPU time",
    have: "Laser-cut acrylic ‘proof of attendance’ tokens (larp).",
    want: "Someone to crunch log anonymization on an offline CSV (class data).",
    lane: "services",
    body: "Coordinate only through your institution’s lab policy — this board is data, not logistics.",
    ts: Date.now() - 7200000 * 14,
  },
];

export function loadBarter(): BarterListing[] {
  if (typeof window === "undefined") return seeds;
  try {
    const raw = localStorage.getItem(KEY);
    if (!raw) {
      saveBarter(seeds);
      return seeds;
    }
    const v = JSON.parse(raw) as BarterListing[];
    if (!Array.isArray(v) || !v.length) {
      saveBarter(seeds);
      return seeds;
    }
    return v;
  } catch {
    return seeds;
  }
}

export function saveBarter(list: BarterListing[]): void {
  if (typeof window === "undefined") return;
  localStorage.setItem(KEY, JSON.stringify(list));
}

const SEED_IDS = new Set(seeds.map((s) => s.id));

export function addBarterListing(
  L: Omit<BarterListing, "id" | "ts">,
): BarterListing {
  const row: BarterListing = {
    id: uid(),
    ts: Date.now(),
    author: L.author.trim() || "Anonymous",
    title: L.title.trim(),
    have: L.have.trim(),
    want: L.want.trim(),
    lane: L.lane,
    body: L.body.trim(),
  };
  const userRows = loadBarter().filter((r) => !SEED_IDS.has(r.id));
  saveBarter([row, ...userRows, ...seeds]);
  return row;
}