package auth

import (
	"fmt"
	"math/rand"
)

// ============================================================
// 浏览器自动化指纹配置
// 用于 chromedp/rod 的随机指纹生成
// ============================================================

// BrowserProfile 浏览器配置档案
type BrowserProfile struct {
	UserAgent    string
	Platform     string
	Width        int
	Height       int
	AcceptLang   string
	ChromeVer    string
	SecChUa      string
	WebGLVendor  string
	WebGLRender  string
	PixelRatio   float64
	MaxTouch     int
	HardwareConc int // navigator.hardwareConcurrency
}

// Windows 配置池
var windowsProfiles = []BrowserProfile{
	{
		UserAgent: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
		Platform:  "Win32",
		Width:     1920, Height: 1080,
		AcceptLang:   "en-US,en;q=0.9",
		ChromeVer:    "133",
		SecChUa:      `"Chromium";v="133", "Not(A:Brand";v="99", "Google Chrome";v="133"`,
		WebGLVendor:  "Google Inc. (NVIDIA)",
		WebGLRender:  "ANGLE (NVIDIA, NVIDIA GeForce RTX 3070 Direct3D11 vs_5_0 ps_5_0, D3D11)",
		PixelRatio:   1,
		MaxTouch:     0,
		HardwareConc: 12,
	},
	{
		UserAgent: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36",
		Platform:  "Win32",
		Width:     2560, Height: 1440,
		AcceptLang:   "en-GB,en;q=0.9",
		ChromeVer:    "132",
		SecChUa:      `"Chromium";v="132", "Not A(Brand";v="99", "Google Chrome";v="132"`,
		WebGLVendor:  "Google Inc. (AMD)",
		WebGLRender:  "ANGLE (AMD, AMD Radeon RX 6800 XT Direct3D11 vs_5_0 ps_5_0, D3D11)",
		PixelRatio:   1,
		MaxTouch:     0,
		HardwareConc: 16,
	},
	{
		UserAgent: "Mozilla/5.0 (Windows NT 11.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
		Platform:  "Win32",
		Width:     1366, Height: 768,
		AcceptLang:   "en-US,en;q=0.9,zh-CN;q=0.8",
		ChromeVer:    "133",
		SecChUa:      `"Chromium";v="133", "Not/A)Brand";v="99", "Google Chrome";v="133"`,
		WebGLVendor:  "Google Inc. (Intel)",
		WebGLRender:  "ANGLE (Intel, Intel(R) UHD Graphics 630 Direct3D11 vs_5_0 ps_5_0, D3D11)",
		PixelRatio:   1.25,
		MaxTouch:     0,
		HardwareConc: 8,
	},
	{
		UserAgent: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
		Platform:  "Win32",
		Width:     1680, Height: 1050,
		AcceptLang:   "de-DE,de;q=0.9,en;q=0.8",
		ChromeVer:    "131",
		SecChUa:      `"Chromium";v="131", "Not(A:Brand";v="99", "Google Chrome";v="131"`,
		WebGLVendor:  "Google Inc. (NVIDIA)",
		WebGLRender:  "ANGLE (NVIDIA, NVIDIA GeForce GTX 1660 Super Direct3D11 vs_5_0 ps_5_0, D3D11)",
		PixelRatio:   1,
		MaxTouch:     0,
		HardwareConc: 6,
	},
}

// macOS 配置池
var macProfiles = []BrowserProfile{
	{
		UserAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
		Platform:  "MacIntel",
		Width:     1440, Height: 900,
		AcceptLang:   "en-US,en;q=0.9",
		ChromeVer:    "133",
		SecChUa:      `"Chromium";v="133", "Not(A:Brand";v="99", "Google Chrome";v="133"`,
		WebGLVendor:  "Google Inc. (Apple)",
		WebGLRender:  "ANGLE (Apple, Apple M1 Pro, OpenGL 4.1)",
		PixelRatio:   2,
		MaxTouch:     0,
		HardwareConc: 10,
	},
	{
		UserAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.6834.110 Safari/537.36",
		Platform:  "MacIntel",
		Width:     1920, Height: 1200,
		AcceptLang:   "en-GB,en;q=0.9,en-US;q=0.8",
		ChromeVer:    "132",
		SecChUa:      `"Chromium";v="132", "Not A(Brand";v="99", "Google Chrome";v="132"`,
		WebGLVendor:  "Google Inc. (Apple)",
		WebGLRender:  "ANGLE (Apple, Apple M2 Max, OpenGL 4.1)",
		PixelRatio:   2,
		MaxTouch:     0,
		HardwareConc: 12,
	},
	{
		UserAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 13_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36",
		Platform:  "MacIntel",
		Width:     2560, Height: 1600,
		AcceptLang:   "fr-FR,fr;q=0.9,en;q=0.8",
		ChromeVer:    "131",
		SecChUa:      `"Chromium";v="131", "Not/A)Brand";v="99", "Google Chrome";v="131"`,
		WebGLVendor:  "Google Inc. (Apple)",
		WebGLRender:  "ANGLE (Apple, Apple M3, OpenGL 4.1)",
		PixelRatio:   2,
		MaxTouch:     0,
		HardwareConc: 8,
	},
}

// Linux 配置池
var linuxProfiles = []BrowserProfile{
	{
		UserAgent: "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
		Platform:  "Linux x86_64",
		Width:     1920, Height: 1080,
		AcceptLang:   "en-US,en;q=0.9",
		ChromeVer:    "133",
		SecChUa:      `"Chromium";v="133", "Not(A:Brand";v="99", "Google Chrome";v="133"`,
		WebGLVendor:  "Google Inc. (AMD)",
		WebGLRender:  "ANGLE (AMD, AMD Radeon Graphics (renoir), OpenGL 4.6)",
		PixelRatio:   1,
		MaxTouch:     0,
		HardwareConc: 8,
	},
	{
		UserAgent: "Mozilla/5.0 (X11; Ubuntu; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36",
		Platform:  "Linux x86_64",
		Width:     1920, Height: 1200,
		AcceptLang:   "en-GB,en;q=0.9",
		ChromeVer:    "132",
		SecChUa:      `"Chromium";v="132", "Not A(Brand";v="99", "Google Chrome";v="132"`,
		WebGLVendor:  "Google Inc. (NVIDIA)",
		WebGLRender:  "ANGLE (NVIDIA, NVIDIA GeForce RTX 2080, OpenGL 4.6)",
		PixelRatio:   1,
		MaxTouch:     0,
		HardwareConc: 12,
	},
}

// 合并所有配置
var allBrowserProfiles []BrowserProfile

func init() {
	allBrowserProfiles = make([]BrowserProfile, 0, 20)
	// Windows 权重更高（更常见）
	allBrowserProfiles = append(allBrowserProfiles, windowsProfiles...)
	allBrowserProfiles = append(allBrowserProfiles, windowsProfiles...)
	allBrowserProfiles = append(allBrowserProfiles, macProfiles...)
	allBrowserProfiles = append(allBrowserProfiles, linuxProfiles...)
}

// GetRandomBrowserProfile 获取随机浏览器配置
func GetRandomBrowserProfile() BrowserProfile {
	return allBrowserProfiles[rand.Intn(len(allBrowserProfiles))]
}

// GetAntiDetectionJS 获取反检测 JavaScript 代码
func GetAntiDetectionJS(profile BrowserProfile) string {
	return fmt.Sprintf(`
		// 隐藏 webdriver
		Object.defineProperty(navigator, 'webdriver', {
			get: () => undefined,
		});

		// 删除 CDP 检测
		delete window.cdc_adoQpoasnfa76pfcZLmcfl_Array;
		delete window.cdc_adoQpoasnfa76pfcZLmcfl_Promise;
		delete window.cdc_adoQpoasnfa76pfcZLmcfl_Symbol;

		// Chrome 对象
		window.chrome = {
			runtime: {},
			loadTimes: function() { return {}; },
			csi: function() { return {}; },
			app: {},
		};

		// 隐藏自动化特征
		Object.defineProperty(navigator, 'plugins', {
			get: () => [
				{ name: 'Chrome PDF Plugin', filename: 'internal-pdf-viewer', description: 'Portable Document Format' },
				{ name: 'Chrome PDF Viewer', filename: 'mhjfbmdgcfjbbpaeojofohoefgiehjai', description: '' },
				{ name: 'Native Client', filename: 'internal-nacl-plugin', description: '' },
			],
		});

		Object.defineProperty(navigator, 'languages', {
			get: () => ['%s'.split(',')[0], 'en'],
		});

		Object.defineProperty(navigator, 'platform', {
			get: () => '%s',
		});

		Object.defineProperty(navigator, 'hardwareConcurrency', {
			get: () => %d,
		});

		Object.defineProperty(navigator, 'deviceMemory', {
			get: () => 8,
		});

		Object.defineProperty(screen, 'colorDepth', {
			get: () => 24,
		});

		// 伪装 WebGL
		const getParameterProxyHandler = {
			apply: function(target, thisArg, args) {
				const param = args[0];
				const gl = thisArg;
				// UNMASKED_VENDOR_WEBGL
				if (param === 37445) {
					return '%s';
				}
				// UNMASKED_RENDERER_WEBGL
				if (param === 37446) {
					return '%s';
				}
				return Reflect.apply(target, thisArg, args);
			}
		};

		const originalGetParameter = WebGLRenderingContext.prototype.getParameter;
		WebGLRenderingContext.prototype.getParameter = new Proxy(originalGetParameter, getParameterProxyHandler);

		const originalGetParameter2 = WebGL2RenderingContext.prototype.getParameter;
		WebGL2RenderingContext.prototype.getParameter = new Proxy(originalGetParameter2, getParameterProxyHandler);

		// Permissions API
		const originalQuery = window.Permissions.prototype.query;
		window.Permissions.prototype.query = (parameters) => (
			parameters.name === 'notifications' ?
				Promise.resolve({ state: Notification.permission }) :
				originalQuery(parameters)
		);
	`, profile.AcceptLang, profile.Platform, profile.HardwareConc, profile.WebGLVendor, profile.WebGLRender)
}

// GetBrowserProfileCount 获取浏览器配置数量
func GetBrowserProfileCount() int {
	return len(allBrowserProfiles)
}