import { BAL } from "./sim/balance";
import { createState, pushEvent } from "./sim/state";
import { step, place, canPlace, wire, sell, grant, raiseRound, clapBack, shipGrade, switchHosting, unlockScrape, buyGpu, sellGpu, extinguishFire, moveRoom, spamBlast } from "./sim/sim";
import { saveState, loadState, clearSave } from "./sim/save";
import { DEF, isCompute } from "./sim/catalog";
import { Scene } from "./render/scene";
import { Hud, applyTheme, currentTheme } from "./ui/hud";
import { Panels } from "./ui/panels";
import { Tutorial } from "./ui/tutorial";
import { sfx } from "./ui/sfx";
import { unlockGen, unlockModality, setSpec, setDataSource, unlockRnd, buyUpgrade } from "./sim/sim";
import { DataSource } from "./sim/research";

async function boot() {
  applyTheme(currentTheme());
  const el = document.getElementById("app")!;
  const loaded = loadState();
  const state = loaded ?? createState();
  let wiped = false;
  const scene = new Scene();
  await scene.init(el, state.room);

  // --- input state ---
  let shopSel: string | null = null;
  let wireMode = false;
  let wireSource: number | null = null;
  let mouse = { x: 0, y: 0 };

  const hud = new Hud({
    onSelectShop: (id) => { shopSel = id; wireMode = false; wireSource = null; hud.setWireActive(false); },
    onToggleOverlay: (w) => { scene.overlays[w] = !scene.overlays[w]; },
    onWireTool: () => {
      wireMode = !wireMode;
      wireSource = null;
      shopSel = null;
      hud.selectedShop = null;
      hud.setWireActive(wireMode);
    },
    onAlloc: (v) => { state.allocTraining = v; },
    onAllocHost: (v) => { state.allocHosting = v; },
    onNewGame: () => { wiped = true; clearSave(); tutorial.reset(); location.reload(); },
    onRaise: () => {
      const err = raiseRound(state);
      if (err) { pushEvent(state, err, "info"); sfx.error(); } else sfx.money();
    },
    onClapback: () => {
      const err = clapBack(state);
      if (err) { pushEvent(state, err, "info"); sfx.error(); }
    },
    onAdSpend: (v) => { state.adSpend = v; },
    onSpam: () => {
      const err = spamBlast(state);
      if (err) { pushEvent(state, err, "info"); sfx.error(); } else sfx.money();
    },
    onMove: (to) => {
      const err = moveRoom(state, to);
      if (err) { pushEvent(state, err, "info"); sfx.error(); }
      else { scene.setRoom(state.room); sfx.tierUp(); saveState(state); }
    },
  });
  hud.bindBreaker(state);
  const panels = new Panels(state);
  const tutorial = new Tutorial();
  const tutChip = hud.root.querySelector("#tut-toggle") as HTMLButtonElement;
  const syncTutChip = () => tutChip.classList.toggle("on", tutorial.enabled);
  tutChip.onclick = () => { tutorial.setEnabled(!tutorial.enabled); syncTutChip(); };
  syncTutChip();
  const labelsChip = hud.root.querySelector("#labels-btn") as HTMLButtonElement;
  const syncLabels = () => labelsChip.classList.toggle("on", scene.showLabels);
  labelsChip.onclick = () => {
    scene.showLabels = !scene.showLabels;
    localStorage.setItem("gigaslop-labels", scene.showLabels ? "1" : "0");
    syncLabels();
    sfx.click();
  };
  syncLabels();
  (hud.root.querySelector("#lab-btn") as HTMLButtonElement).onclick = () => panels.toggle("lab");
  (hud.root.querySelector("#rnd-btn") as HTMLButtonElement).onclick = () => panels.toggle("rnd");
  (hud.root.querySelector("#market-btn") as HTMLButtonElement).onclick = () => panels.toggle("market");
  (hud.root.querySelector("#hq-btn") as HTMLButtonElement).onclick = () => panels.toggle("hq");

  const cancel = () => {
    shopSel = null; hud.selectedShop = null; hud.lockedCache = "";
    wireMode = false; wireSource = null; hud.setWireActive(false);
  };

  window.addEventListener("keydown", (e) => {
    if ((e.target as HTMLElement)?.tagName === "INPUT") return;
    if (e.key === "Escape") { cancel(); panels.closeAll(); }
    if (e.key === "w" || e.key === "W") {
      wireMode = !wireMode; wireSource = null; shopSel = null; hud.setWireActive(wireMode);
    }
    if (e.key === "l" || e.key === "L") panels.toggle("lab");
    if (e.key === "r" || e.key === "R") panels.toggle("rnd");
    if (e.key === "m" || e.key === "M") panels.toggle("market");
    if (e.key === "Tab") { e.preventDefault(); panels.toggle("hq"); }
  });

  scene.app.canvas.addEventListener("pointermove", (e) => {
    mouse = { x: e.clientX, y: e.clientY };
  });

  const deviceAt = (tx: number, ty: number) =>
    state.devices.find((d) => {
      const def = DEF[d.defId];
      return tx >= d.x && tx < d.x + def.footprint.w && ty >= d.y && ty < d.y + def.footprint.h;
    });

  scene.app.canvas.addEventListener("pointerdown", (e) => {
    const t = scene.tileAt(e.clientX, e.clientY);
    if (e.button === 2) {
      if (shopSel || wireMode) { cancel(); return; }
      if (t.in) {
        const d = deviceAt(t.x, t.y);
        if (d) { sell(state, d.uid); sfx.sell(); }
      }
      return;
    }
    if (!t.in) return;
    if (extinguishFire(state, t.x, t.y)) { sfx.sell(); return; }
    if (shopSel) {
      const err = canPlace(state, shopSel, t.x, t.y);
      if (err) { pushEvent(state, err, "info"); sfx.error(); return; }
      place(state, shopSel, t.x, t.y);
      sfx.place();
      if (state.cash < DEF[shopSel].cost) { shopSel = null; hud.selectedShop = null; hud.lockedCache = ""; }
      return;
    }
    if (wireMode) {
      const d = deviceAt(t.x, t.y);
      if (!d) return;
      const def = DEF[d.defId];
      if (wireSource === null) {
        if (isCompute(def) || def.switchMbps) {
          wireSource = d.uid;
          sfx.click();
          pushEvent(state, `${def.name} picked — now click a router or switch (green)`, "info");
        } else if (def.uplinkMbps) {
          pushEvent(state, "that's the internet side — pick the PC/rig first (cyan), then this", "info");
        } else {
          pushEvent(state, `${def.name} can't be wired — pick a PC, rig, rack, or switch`, "info");
        }
      } else {
        const err = wire(state, wireSource, d.uid);
        if (err) { pushEvent(state, err, "info"); sfx.error(); } else sfx.wire();
        wireSource = null;
      }
      return;
    }
    // no tool active: click inspects a device, empty floor deselects
    const d = deviceAt(t.x, t.y);
    panels.selectedDevice = d ? d.uid : null;
    panels.render();
    if (d) sfx.click();
  });
  scene.app.canvas.addEventListener("contextmenu", (e) => e.preventDefault());

  // --- fixed-tick sim pump ---
  // setInterval (not RAF) so the economy keeps running when the tab is hidden;
  // background tabs clamp timers to ~1 Hz, the accumulator catches up (max 2 s).
  let acc = 0;
  let last = performance.now();
  setInterval(() => {
    const now = performance.now();
    acc += Math.min(2, (now - last) / 1000);
    last = now;
    if (document.getElementById("name-modal")) { acc = 0; return; } // clock frozen until incorporated
    while (acc >= BAL.SIM_DT) { step(state); acc -= BAL.SIM_DT; }
  }, 50);

  // --- render loop ---
  const loop = () => {
    const t = scene.tileAt(mouse.x, mouse.y);
    const ghost = shopSel && t.in
      ? { defId: shopSel, x: t.x, y: t.y, ok: !canPlace(state, shopSel, t.x, t.y) }
      : null;
    scene.render(state, ghost, 1 / 60, {
      wireActive: wireMode,
      wireSource,
      ringDefs: tutorial.ringDefs(),
    });
    if (wireMode && wireSource !== null) {
      const src = state.devices.find((d) => d.uid === wireSource);
      scene.highlightWireSource(src ?? null, state);
    }
    requestAnimationFrame(loop);
  };

  // HUD at 5 Hz; open panels refresh at 1 Hz (innerHTML rebuild resets scroll)
  let hudTicks = 0;
  setInterval(() => {
    hud.update(state);
    tutorial.update(state);
    if (++hudTicks % 5 === 0 && (panels.open || panels.selectedDevice !== null)) panels.render();
  }, 200);
  hud.update(state);

  if (!loaded) {
    // starter bedroom: your old PC (Dumpster inside) and router, not yet wired
    grant(state, "desk", 5, 7);
    grant(state, "desk_pc", 7, 7, ["gfx1060"]);
    grant(state, "router", 2, 1);
    grant(state, "ssd_shoebox", 0, 7);
    const names = await hud.showNameModal();
    state.company = names.company;
    state.modelName = names.model;
    document.title = `${state.company} — GigaSlop`;
    pushEvent(state, `${state.company} is live. ${state.modelName} 1 awaits its slop. Wire the PC to the router (W).`, "info");
    saveState(state);
  } else {
    document.title = `${state.company} — GigaSlop`;
  }
  requestAnimationFrame(loop);

  // autosave (suppressed after a New Game wipe so the wipe actually sticks)
  setInterval(() => { if (!wiped) saveState(state); }, 10_000);
  window.addEventListener("beforeunload", () => { if (!wiped) saveState(state); });
  document.addEventListener("visibilitychange", () => {
    if (document.visibilityState === "hidden" && !wiped) saveState(state);
  });

  // debug/automation handle
  (window as never as Record<string, unknown>).__giga = {
    state, scene, place: (id: string, x: number, y: number) => place(state, id, x, y),
    wire: (a: number, b: number) => wire(state, a, b),
    stepN: (n: number) => { for (let i = 0; i < n; i++) step(state); },
    newGame: () => { wiped = true; clearSave(); location.reload(); },
    raise: () => raiseRound(state),
    clap: () => clapBack(state),
    panels,
    gen: () => unlockGen(state),
    modality: (id: string) => unlockModality(state, id),
    spec: (id: string) => setSpec(state, id),
    data: (k: DataSource) => setDataSource(state, k),
    rnd: (id: string) => unlockRnd(state, id),
    upg: (uid: number, id: string) => buyUpgrade(state, uid, id),
    ship: (g: "mini" | "pro" | "max") => shipGrade(state, g),
    host: (id: number | null) => switchHosting(state, id),
    scrape: (id: string) => unlockScrape(state, id),
    gpu: (uid: number, id: string) => buyGpu(state, uid, id),
    sellGpu: (uid: number, slot: number) => sellGpu(state, uid, slot),
    move: (to: string) => { const e = moveRoom(state, to); if (!e) scene.setRoom(state.room); return e; },
    spam: () => spamBlast(state),
  };
}

boot();