package service

import "testing"

func TestParseUserAgentChromeWindows(t *testing.T) {
	ua := "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36"
	p := ParseUserAgent(ua)
	if p.Kind != DeviceKindComputer || p.Label != "Windows 电脑" || p.Browser != "Google Chrome" {
		t.Fatalf("got %+v", p)
	}
}

func TestParseUserAgentEdgeWindows(t *testing.T) {
	ua := "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 Edg/128.0.0.0"
	p := ParseUserAgent(ua)
	if p.Browser != "Microsoft Edge" || p.Label != "Windows 电脑" {
		t.Fatalf("got %+v", p)
	}
}

func TestParseUserAgentAndroidChrome(t *testing.T) {
	ua := "Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Mobile Safari/537.36"
	p := ParseUserAgent(ua)
	if p.Kind != DeviceKindMobile || p.Label != "Android 手机" || p.Browser != "Google Chrome" {
		t.Fatalf("got %+v", p)
	}
}

func TestParseUserAgentIPhoneSafari(t *testing.T) {
	ua := "Mozilla/5.0 (iPhone; CPU iPhone OS 17_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Mobile/15E148 Safari/604.1"
	p := ParseUserAgent(ua)
	if p.Kind != DeviceKindMobile || p.Label != "iOS 手机" || p.Browser != "Safari" {
		t.Fatalf("got %+v", p)
	}
}

func TestParseUserAgentWeChat(t *testing.T) {
	ua := "Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/128.0.0.0 Mobile Safari/537.36 MicroMessenger/8.0.50"
	p := ParseUserAgent(ua)
	if p.Browser != "微信" || p.Kind != DeviceKindMobile {
		t.Fatalf("got %+v", p)
	}
}

func TestParseUserAgentEmpty(t *testing.T) {
	p := ParseUserAgent("")
	if p.Label != "未知设备" {
		t.Fatalf("got %+v", p)
	}
}

func TestCanonicalIPLoopback(t *testing.T) {
	if got := canonicalIP("::ffff:127.0.0.1"); got != "127.0.0.1" {
		t.Fatalf("mapped got %q", got)
	}
	if got := canonicalIP("::1"); got != "127.0.0.1" {
		t.Fatalf("::1 got %q", got)
	}
	if got := canonicalIP("127.0.0.1"); got != "127.0.0.1" {
		t.Fatalf("v4 got %q", got)
	}
}

func TestDeviceFingerprintMergesLoopback(t *testing.T) {
	ua := "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36"
	a := deviceFingerprint("::1", ua)
	b := deviceFingerprint("127.0.0.1", ua)
	if a != b {
		t.Fatalf("loopback fingerprint mismatch %q vs %q", a, b)
	}
	empty := deviceFingerprint("127.0.0.1", "")
	if empty == a {
		t.Fatalf("empty UA should not match Chrome")
	}
}