import { closeSync, existsSync, openSync, readFileSync, readSync, renameSync, statSync, writeFileSync, writeSync } from 'node:fs';
import fsSync from 'node:fs';
import net from 'node:net';
import os from 'node:os';
import path, { join } from 'node:path';
import {
  NodeAgentClient,
  loadMacroFile,
  runMacro,
  ClientError,
  loadConfig,
  saveConfig,
  configPath,
  toWsUrl,
  loadKeys,
  createKeys,
  keysFilePath,
  discoverOnce,
  resolveTarget,
  resolveNodeSelector,
  emptyConfig,
  type ClientConfig,
  type ResolvedTarget,
  type NodeProfile,
} from '@nodeagent/client';
import {
  CapabilityNames,
  matchPattern,
  DEFAULT_DISCOVERY_PORT,
  type CapabilityDescriptor,
  type InvokeResult,
} from '@nodeagent/protocol';
import {
  callAndPrint,
  fail,
  getClientConfig,
  humanSize,
  printJson,
  riskIcon,
  withClient,
  withClientDirect,
} from '../core.js';
import { CHUNK_BYTES, type Options } from '../types.js';

// CLI 命令组：cmd/gui.ts
export async function cmdScreen(opts: Options): Promise<void> {
  await withClient((c) =>
    callAndPrint(c, CapabilityNames.ScreenInfo, {}, opts.json, (data) => {
      const rows = (
        data as { displays: Array<{ id: number; name: string; width: number; height: number; is_primary: boolean }> }
      ).displays;
      for (const d of rows) {
        console.log(
          `  #${d.id}  ${String(d.width).padStart(5)}x${String(d.height).padEnd(5)} ${d.is_primary ? '[主屏]' : '      '}  ${d.name}`,
        );
      }
    }),
  );
}

export async function cmdScreenshot(opts: Options): Promise<void> {
  const args: Record<string, unknown> = {};
  if (opts.format) args['format'] = opts.format;
  if (opts.scale) args['scale'] = Number(opts.scale);
  if (opts.region) {
    const nums = opts.region.split(',').map(Number);
    if (nums.length !== 4 || nums.some((n) => !Number.isFinite(n))) fail('--region 格式应为 x,y,width,height');
    args['region'] = { x: nums[0], y: nums[1], width: nums[2], height: nums[3] };
  }
  await withClient((c) =>
    callAndPrint(c, CapabilityNames.ScreenCapture, args, opts.json, (data) => {
      const d = data as { image: string; format: string; width: number; height: number; bytes: number };
      const out = opts.out ?? `screenshot.${d.format === 'png' ? 'png' : 'jpg'}`;
      writeFileSync(out, Buffer.from(d.image, 'base64'));
      console.log(`✓ 已保存 ${out}  ${d.width}x${d.height}  ${humanSize(d.bytes)}`);
    }),
  );
}

export async function cmdMouse(action: string | undefined, positionals: string[], opts: Options): Promise<void> {
  const [a, b] = positionals;
  switch (action) {
    case 'move': {
      if (!a || !b) fail('用法: nodeagent mouse move <x> <y> [--duration 300]');
      const args: Record<string, unknown> = { x: Number(a), y: Number(b) };
      if (opts.duration) args['duration_ms'] = Number(opts.duration);
      await withClient((c) =>
        callAndPrint(c, CapabilityNames.MouseMove, args, opts.json, (d) => {
          const r = d as { x: number; y: number };
          console.log(`✓ 鼠标已移动到 (${r.x}, ${r.y})`);
        }),
      );
      return;
    }
    case 'click': {
      const args: Record<string, unknown> = {};
      if (a && b) {
        args['x'] = Number(a);
        args['y'] = Number(b);
      }
      if (opts.button) args['button'] = opts.button;
      await withClient((c) =>
        callAndPrint(c, CapabilityNames.MouseClick, args, opts.json, (d) => {
          const r = d as { x: number; y: number; button: string };
          console.log(`✓ 已${r.button}键点击 (${r.x}, ${r.y})`);
        }),
      );
      return;
    }
    case 'scroll': {
      if (!a) fail('用法: nodeagent mouse scroll <delta> [y]');
      const args: Record<string, unknown> = { delta: Number(a) };
      if (b) args['y'] = Number(b);
      await withClient((c) =>
        callAndPrint(c, CapabilityNames.MouseScroll, args, opts.json, (d) => {
          const r = d as { delta: number };
          console.log(`✓ 已滚动 ${r.delta} 格`);
        }),
      );
      return;
    }
    case 'drag': {
      const [x1, y1, x2, y2] = positionals;
      if (!x1 || !y1 || !x2 || !y2) {
        fail('用法: nodeagent mouse drag <x1> <y1> <x2> <y2> [--button left|right|middle]');
      }
      const args: Record<string, unknown> = {
        from_x: Number(x1),
        from_y: Number(y1),
        to_x: Number(x2),
        to_y: Number(y2),
      };
      if (opts.button) args['button'] = opts.button;
      if (opts.duration) args['step_delay_ms'] = Number(opts.duration);
      await withClient((c) =>
        callAndPrint(c, CapabilityNames.MouseDrag, args, opts.json, (d) => {
          const r = d as { from: { x: number; y: number }; to: { x: number; y: number }; steps: number };
          console.log(
            `✓ 已拖拽 (${r.from.x}, ${r.from.y}) → (${r.to.x}, ${r.to.y})，${r.steps} 步`,
          );
        }),
      );
      return;
    }
    default:
      fail('用法: nodeagent mouse <move|click|scroll> ...');
  }
}

export async function cmdKey(action: string | undefined, positionals: string[], opts: Options): Promise<void> {
  switch (action) {
    case 'type': {
      const text = positionals.join(' ');
      if (!text) fail('用法: nodeagent key type "<文本>"');
      const args: Record<string, unknown> = { text };
      if (opts.interval) args['interval_ms'] = Number(opts.interval);
      await withClient((c) =>
        callAndPrint(c, CapabilityNames.KeyType, args, opts.json, (d) => {
          const r = d as { length: number };
          console.log(`✓ 已输入 ${r.length} 个字符`);
        }),
      );
      return;
    }
    case 'press': {
      if (positionals.length === 0) fail('用法: nodeagent key press <键1> [键2] ...（如 ctrl c）');
      await withClient((c) =>
        callAndPrint(c, CapabilityNames.KeyPress, { keys: positionals }, opts.json, (d) => {
          // 被控端返回 { pressed, chords, times }，**没有 keys 字段**
          // （真机 2026-10-04 实测：原先直接读 r.keys.join() 会抛
          //   "Cannot read properties of undefined (reading 'join')"）
          // 故优先用请求参数回显，缺失时再退回 chords 展开。
          const r = d as { keys?: string[]; chords?: string[][]; times?: number };
          const label = r.keys?.length
            ? r.keys.join('+')
            : (r.chords ?? []).map((ch) => ch.join('+')).join(' → ') || positionals.join('+');
          const times = r.times && r.times > 1 ? `（重复 ${r.times} 次）` : '';
          console.log(`✓ 已按下 ${label}${times}`);
        }),
      );
      return;
    }
    default:
      fail('用法: nodeagent key <type|press> ...');
  }
}

// ---------- v3+ 审计 ----------

/** v11：审计链完整性校验。 */