// Name: Agar.io Multibox Userscript Generator
// Description: Generates a Tampermonkey userscript for a support autofarm tab that follows and feeds the main tab.
// Author: vvar10
// GitHub: vvar10

import "@johnlindquist/kit"

const lines = [
  "// ==UserScript==",
  "// @name         Agar.io Multibox Support/Follow",
  "// @namespace    https://github.com/vvar10/agario-multibox",
  "// @version      0.1.0",
  "// @description  Support/autofarm tab follows and feeds the paired main tab; toggle with Ctrl+Alt+A; choose role with Ctrl+Alt+M (main) or Ctrl+Alt+S (support); select group with Ctrl+Alt+1/2.",
  "// @match        https://agar.io/*",
  "// @run-at       document-end",
  "// @grant        none",
  "// ==/UserScript==",
  "",
  "(function() {",
  "  'use strict';",
  "",
  "  const STATE = {",
  "    isMain: false,",
  "    isSupport: false,",
  "    enabled: true,",
  "    group: localStorage.getItem('AG_MB_GROUP') || '1',",
  "  };",
  "",
  "  const CHANNEL_PREFIX = 'agario-mb-';",
  "  let channel = new BroadcastChannel(CHANNEL_PREFIX + STATE.group);",
  "",
  "  function setGroup(g) {",
  "    if (!g) return;",
  "    try {",
  "      channel && channel.close && channel.close();",
  "    } catch (_) {}",
  "    STATE.group = g;",
  "    localStorage.setItem('AG_MB_GROUP', g);",
  "    channel = new BroadcastChannel(CHANNEL_PREFIX + g);",
  "    channel.onmessage = onChannelMessage;",
  "    overlayUpdate();",
  "  }",
  "",
  "  // Overlay status",
  "  let ov = null;",
  "  function overlayUpdate() {",
  "    if (!ov) return;",
  "    ov.innerHTML = ''",
  "      + '<div><b>Agar Multibox</b></div>'",
  "      + '<div>Group: ' + STATE.group + ' (Ctrl+Alt+1/2)</div>'",
  "      + '<div>Role: ' + (STATE.isMain ? 'MAIN' : (STATE.isSupport ? 'SUPPORT' : 'IDLE')) + ' (Ctrl+Alt+M/S)</div>'",
  "      + '<div>Enabled: ' + (STATE.enabled ? 'ON' : 'OFF') + ' (Ctrl+Alt+A)</div>';",
  "    ov.style.opacity = STATE.enabled ? '0.9' : '0.5';",
  "  }",
  "  function overlayInit() {",
  "    ov = document.createElement('div');",
  "    ov.style.position = 'fixed';",
  "    ov.style.top = '8px';",
  "    ov.style.left = '8px';",
  "    ov.style.zIndex = '99999';",
  "    ov.style.font = '12px/1.2 -apple-system, Segoe UI, Roboto, sans-serif';",
  "    ov.style.background = 'rgba(0,0,0,0.55)';",
  "    ov.style.color = '#0f0';",
  "    ov.style.padding = '6px 8px';",
  "    ov.style.border = '1px solid rgba(0,255,0,0.3)';",
  "    ov.style.borderRadius = '4px';",
  "    ov.style.pointerEvents = 'none';",
  "    overlayUpdate();",
  "    document.addEventListener('DOMContentLoaded', () => {",
  "      if (!document.body.contains(ov)) document.body.appendChild(ov);",
  "    });",
  "    if (document.body) document.body.appendChild(ov);",
  "  }",
  "  overlayInit();",
  "",
  "  // Hotkeys",
  "  window.addEventListener('keydown', function(e) {",
  "    if (!e || !e.ctrlKey || !e.altKey) return;",
  "    if (e.code === 'KeyA') {",
  "      STATE.enabled = !STATE.enabled;",
  "      overlayUpdate();",
  "      e.preventDefault();",
  "    } else if (e.code === 'KeyM') {",
  "      STATE.isMain = !STATE.isMain;",
  "      if (STATE.isMain) STATE.isSupport = false;",
  "      overlayUpdate();",
  "      e.preventDefault();",
  "    } else if (e.code === 'KeyS') {",
  "      STATE.isSupport = !STATE.isSupport;",
  "      if (STATE.isSupport) STATE.isMain = false;",
  "      overlayUpdate();",
  "      e.preventDefault();",
  "    } else if (e.code === 'Digit1') {",
  "      setGroup('1');",
  "      e.preventDefault();",
  "    } else if (e.code === 'Digit2') {",
  "      setGroup('2');",
  "      e.preventDefault();",
  "    }",
  "  }, true);",
  "",
  "  // Broadcast mouse pos from MAIN",
  "  function getCanvasRect() {",
  "    const canvas = document.querySelector('canvas');",
  "    if (!canvas) return null;",
  "    return canvas.getBoundingClientRect();",
  "  }",
  "",
  "  window.addEventListener('mousemove', function(e) {",
  "    if (!STATE.enabled || !STATE.isMain) return;",
  "    const rect = getCanvasRect();",
  "    if (!rect) return;",
  "    const x = (e.clientX - rect.left) / Math.max(1, rect.width);",
  "    const y = (e.clientY - rect.top) / Math.max(1, rect.height);",
  "    if (x >= -0.2 && x <= 1.2 && y >= -0.2 && y <= 1.2) {",
  "      try {",
  "        channel.postMessage({ t: 'pos', x: x, y: y, ts: performance.now() });",
  "      } catch (_) {}",
  "      // Mirror to localStorage as a fallback",
  "      mirrorToLocalStorage(x, y);",
  "    }",
  "  }, { passive: true });",
  "",
  "  // SUPPORT: listen and follow",
  "  let target = { x: 0.5, y: 0.5, ts: 0 };",
  "  let cur = { x: 0.5, y: 0.5 };",
  "  function onChannelMessage(ev) {",
  "    const d = ev && ev.data;",
  "    if (!d || d.t !== 'pos') return;",
  "    target.x = d.x; target.y = d.y; target.ts = d.ts || performance.now();",
  "  }",
  "  channel.onmessage = onChannelMessage;",
  "",
  "  function dispatchMouseToCanvas(nx, ny) {",
  "    const canvas = document.querySelector('canvas');",
  "    if (!canvas) return;",
  "    const rect = canvas.getBoundingClientRect();",
  "    const clampedX = Math.min(Math.max(nx, 0), 1);",
  "    const clampedY = Math.min(Math.max(ny, 0), 1);",
  "    const cx = rect.left + clampedX * rect.width;",
  "    const cy = rect.top + clampedY * rect.height;",
  "    const eventOpts = {",
  "      bubbles: true,",
  "      cancelable: true,",
  "      clientX: Math.round(cx),",
  "      clientY: Math.round(cy),",
  "      screenX: window.screenX + Math.round(cx),",
  "      screenY: window.screenY + Math.round(cy),",
  "      view: window",
  "    };",
  "    const ev = new MouseEvent('mousemove', eventOpts);",
  "    canvas.dispatchEvent(ev);",
  "    window.dispatchEvent(new MouseEvent('mousemove', eventOpts));",
  "    document.dispatchEvent(new MouseEvent('mousemove', eventOpts));",
  "  }",
  "",
  "  // Feeding",
  "  let feeding = false;",
  "  let feedInterval = 0;",
  "  function startFeeding() {",
  "    if (feeding) return;",
  "    feeding = true;",
  "    feedInterval = window.setInterval(function() {",
  "      const kd = new KeyboardEvent('keydown', { key: 'x', code: 'KeyX', bubbles: true });",
  "      const ku = new KeyboardEvent('keyup', { key: 'x', code: 'KeyX', bubbles: true });",
  "      window.dispatchEvent(kd); document.dispatchEvent(kd);",
  "      window.dispatchEvent(ku); document.dispatchEvent(ku);",
  "    }, 60);",
  "  }",
  "  function stopFeeding() {",
  "    if (!feeding) return;",
  "    feeding = false;",
  "    window.clearInterval(feedInterval);",
  "  }",
  "",
  "  function supportLoop() {",
  "    if (STATE.enabled && STATE.isSupport) {",
  "      // Smoothly follow target",
  "      cur.x += (target.x - cur.x) * 0.25;",
  "      cur.y += (target.y - cur.y) * 0.25;",
  "      dispatchMouseToCanvas(cur.x, cur.y);",
  "",
  "      // Feed if very close to the main's pointer direction",
  "      const dx = target.x - cur.x;",
  "      const dy = target.y - cur.y;",
  "      const dist = Math.hypot(dx, dy);",
  "      if (dist < 0.02) startFeeding(); else stopFeeding();",
  "    } else {",
  "      stopFeeding();",
  "    }",
  "    window.requestAnimationFrame(supportLoop);",
  "  }",
  "  window.requestAnimationFrame(supportLoop);",
  "",
  "  // Auto-respawn for SUPPORT",
  "  function tryRespawn() {",
  "    if (!STATE.enabled || !STATE.isSupport) return;",
  "    // Try clicking a Play/Respawn button",
  "    const btn = document.querySelector('.btn-play, .btn-primary, button[aria-label=\"Play\"], button[aria-label=\"Respawn\"], button[aria-label=\"Continue\"], button');",
  "    if (btn && btn instanceof HTMLElement && btn.offsetParent !== null) {",
  "      btn.click();",
  "    } else {",
  "      // Fallback: press Space to (re)spawn",
  "      const kd = new KeyboardEvent('keydown', { key: ' ', code: 'Space', bubbles: true });",
  "      const ku = new KeyboardEvent('keyup', { key: ' ', code: 'Space', bubbles: true });",
  "      window.dispatchEvent(kd); document.dispatchEvent(kd);",
  "      window.dispatchEvent(ku); document.dispatchEvent(ku);",
  "    }",
  "  }",
  "  setInterval(tryRespawn, 1500);",
  "",
  "  document.addEventListener('visibilitychange', function() {",
  "    if (!document.hidden && STATE.isSupport && STATE.enabled) {",
  "      const nx = target.x * 0.98 + 0.01;",
  "      const ny = target.y * 0.98 + 0.01;",
  "      dispatchMouseToCanvas(nx, ny);",
  "    }",
  "  });",
  "",
  "  // Fallback sync via localStorage",
  "  function lsKey() { return 'agario-mb-sync-' + STATE.group; }",
  "  function mirrorToLocalStorage(x, y) {",
  "    try {",
  "      localStorage.setItem(lsKey(), JSON.stringify({ t: 'pos', x: x, y: y, ts: Date.now(), rnd: Math.random() }));",
  "    } catch (_) {}",
  "  }",
  "  window.addEventListener('storage', function(e) {",
  "    if (!e || e.key !== lsKey() || !e.newValue) return;",
  "    try {",
  "      const d = JSON.parse(e.newValue);",
  "      if (d && d.t === 'pos') {",
  "        target.x = d.x; target.y = d.y; target.ts = d.ts || performance.now();",
  "      }",
  "    } catch (_) {}",
  "  });",
  "",
  "})();",
  "",
]

const userscript = lines.join("\n")

const defaultPath = home("Downloads", "agar-io-multibox.user.js")
await writeFile(defaultPath, userscript)
await copy(userscript)
await notify(`Userscript copied to clipboard and saved:\n${defaultPath}`)
await revealFile(defaultPath)