<template>
	<view class="phone-input-container">
		<!-- 手机号输入区域 -->
		<view class="phone-input-wrap">
			<!-- 区号选择 -->
			<view class="code-selector" @tap="showCodePicker = true">
				<text class="code-text">{{ selectedCode }}</text>
				<u-icon name="arrow-down-fill" size="20" color="#636B77"></u-icon>
			</view>
		</view>

		<!-- 区号选择弹窗 -->
		<u-popup :show="showCodePicker" mode="bottom" :round="20">
			<view class="code-picker-wrap">
				<view class="title">
					<text>请选择区号</text>
					<image :src="imgBase+'remind_close.png'" @tap="showCodePicker = false"></image>
				</view>
				<!-- 搜索框 -->
				<view class="search-wrap">
					<input class="search-input" type="text" placeholder="搜索国家/地区/区号" v-model="searchKeyword" @input="filterCodeList" />
				</view>

				<!-- 区号列表 -->
				<scroll-view class="code-list-scroll" scroll-y :style="{ height: '600rpx' }">
					<view class="code-item" v-for="(item, index) in filteredCodeList" :key="index" @tap="selectCode(item)">
						<text class="country-name">{{ item.name }}</text>
						<text class="code-num">{{ item.code }}</text>
					</view>
					<!-- 无搜索结果提示 -->
					<view v-if="filteredCodeList.length === 0" class="empty-tip">未找到相关国家/地区</view>
				</scroll-view>
			</view>
		</u-popup>
	</view>
</template>

<script>
export default {
	name: 'PhoneInput',
	props: {
		// 初始区号，默认+86
		initCode: {
			type: String,
			default: '+86'
		},
		// 是否必填
		required: {
			type: Boolean,
			default: true
		}
	},
	data() {
		return {
			// 显示区号选择弹窗
			showCodePicker: false,
			// 当前选中的区号
			selectedCode: '',
			// 手机号
			phoneNumber: '',
			// 搜索关键词
			searchKeyword: '',
			// 完整的全球国家/地区区号列表（200+）
			codeList: [
				{ name: '中国', code: '+86' },
				{ name: '中国香港', code: '+852' },
				{ name: '中国澳门', code: '+853' },
				{ name: '中国台湾', code: '+886' },
				{ name: '阿富汗', code: '+93' },
				{ name: '阿尔巴尼亚', code: '+355' },
				{ name: '阿尔及利亚', code: '+213' },
				{ name: '美属萨摩亚', code: '+1684' },
				{ name: '安道尔', code: '+376' },
				{ name: '安哥拉', code: '+244' },
				{ name: '安圭拉', code: '+1264' },
				{ name: '安提瓜和巴布达', code: '+1268' },
				{ name: '阿根廷', code: '+54' },
				{ name: '亚美尼亚', code: '+374' },
				{ name: '阿鲁巴', code: '+297' },
				{ name: '澳大利亚', code: '+61' },
				{ name: '奥地利', code: '+43' },
				{ name: '阿塞拜疆', code: '+994' },
				{ name: '巴哈马', code: '+1242' },
				{ name: '巴林', code: '+973' },
				{ name: '孟加拉国', code: '+880' },
				{ name: '巴巴多斯', code: '+1246' },
				{ name: '白俄罗斯', code: '+375' },
				{ name: '比利时', code: '+32' },
				{ name: '伯利兹', code: '+501' },
				{ name: '贝宁', code: '+229' },
				{ name: '百慕大', code: '+1441' },
				{ name: '不丹', code: '+975' },
				{ name: '玻利维亚', code: '+591' },
				{ name: '波黑', code: '+387' },
				{ name: '博茨瓦纳', code: '+267' },
				{ name: '巴西', code: '+55' },
				{ name: '英属印度洋领地', code: '+246' },
				{ name: '文莱', code: '+673' },
				{ name: '波斯尼亚和黑塞哥维那', code: '+387' },
				{ name: '保加利亚', code: '+359' },
				{ name: '布基纳法索', code: '+226' },
				{ name: '布隆迪', code: '+257' },
				{ name: '佛得角', code: '+238' },
				{ name: '柬埔寨', code: '+855' },
				{ name: '喀麦隆', code: '+237' },
				{ name: '加拿大', code: '+1' },
				{ name: '佛得角', code: '+238' },
				{ name: '开曼群岛', code: '+1345' },
				{ name: '中非', code: '+236' },
				{ name: '乍得', code: '+235' },
				{ name: '智利', code: '+56' },
				{ name: '哥伦比亚', code: '+57' },
				{ name: '科摩罗', code: '+269' },
				{ name: '刚果（布）', code: '+242' },
				{ name: '刚果（金）', code: '+243' },
				{ name: '库克群岛', code: '+682' },
				{ name: '哥斯达黎加', code: '+506' },
				{ name: '科特迪瓦', code: '+225' },
				{ name: '克罗地亚', code: '+385' },
				{ name: '古巴', code: '+53' },
				{ name: '塞浦路斯', code: '+357' },
				{ name: '捷克', code: '+420' },
				{ name: '丹麦', code: '+45' },
				{ name: '吉布提', code: '+253' },
				{ name: '多米尼克', code: '+1767' },
				{ name: '多米尼加', code: '+1809' },
				{ name: '东帝汶', code: '+670' },
				{ name: '厄瓜多尔', code: '+593' },
				{ name: '埃及', code: '+20' },
				{ name: '萨尔瓦多', code: '+503' },
				{ name: '赤道几内亚', code: '+240' },
				{ name: '厄立特里亚', code: '+291' },
				{ name: '爱沙尼亚', code: '+372' },
				{ name: '埃塞俄比亚', code: '+251' },
				{ name: '福克兰群岛', code: '+500' },
				{ name: '法罗群岛', code: '+298' },
				{ name: '斐济', code: '+679' },
				{ name: '芬兰', code: '+358' },
				{ name: '法国', code: '+33' },
				{ name: '法属圭亚那', code: '+594' },
				{ name: '法属波利尼西亚', code: '+689' },
				{ name: '加蓬', code: '+241' },
				{ name: '冈比亚', code: '+220' },
				{ name: '格鲁吉亚', code: '+995' },
				{ name: '德国', code: '+49' },
				{ name: '加纳', code: '+233' },
				{ name: '直布罗陀', code: '+350' },
				{ name: '希腊', code: '+30' },
				{ name: '格陵兰', code: '+299' },
				{ name: '格林纳达', code: '+1473' },
				{ name: '瓜德罗普', code: '+590' },
				{ name: '关岛', code: '+1671' },
				{ name: '危地马拉', code: '+502' },
				{ name: '几内亚', code: '+224' },
				{ name: '几内亚比绍', code: '+245' },
				{ name: '圭亚那', code: '+592' },
				{ name: '海地', code: '+509' },
				{ name: '洪都拉斯', code: '+504' },
				{ name: '匈牙利', code: '+36' },
				{ name: '冰岛', code: '+354' },
				{ name: '印度', code: '+91' },
				{ name: '印度尼西亚', code: '+62' },
				{ name: '伊朗', code: '+98' },
				{ name: '伊拉克', code: '+964' },
				{ name: '爱尔兰', code: '+353' },
				{ name: '以色列', code: '+972' },
				{ name: '意大利', code: '+39' },
				{ name: '牙买加', code: '+1876' },
				{ name: '日本', code: '+81' },
				{ name: '约旦', code: '+962' },
				{ name: '哈萨克斯坦', code: '+7' },
				{ name: '肯尼亚', code: '+254' },
				{ name: '基里巴斯', code: '+686' },
				{ name: '朝鲜', code: '+850' },
				{ name: '韩国', code: '+82' },
				{ name: '科威特', code: '+965' },
				{ name: '吉尔吉斯斯坦', code: '+996' },
				{ name: '老挝', code: '+856' },
				{ name: '拉脱维亚', code: '+371' },
				{ name: '黎巴嫩', code: '+961' },
				{ name: '莱索托', code: '+266' },
				{ name: '利比里亚', code: '+231' },
				{ name: '利比亚', code: '+218' },
				{ name: '列支敦士登', code: '+423' },
				{ name: '立陶宛', code: '+370' },
				{ name: '卢森堡', code: '+352' },
				{ name: '马达加斯加', code: '+261' },
				{ name: '马拉维', code: '+265' },
				{ name: '马来西亚', code: '+60' },
				{ name: '马尔代夫', code: '+960' },
				{ name: '马里', code: '+223' },
				{ name: '马耳他', code: '+356' },
				{ name: '马绍尔群岛', code: '+692' },
				{ name: '马提尼克', code: '+596' },
				{ name: '毛里塔尼亚', code: '+222' },
				{ name: '毛里求斯', code: '+230' },
				{ name: '马约特', code: '+262' },
				{ name: '墨西哥', code: '+52' },
				{ name: '密克罗尼西亚', code: '+691' },
				{ name: '摩尔多瓦', code: '+373' },
				{ name: '摩纳哥', code: '+377' },
				{ name: '蒙古', code: '+976' },
				{ name: '黑山', code: '+382' },
				{ name: '蒙特塞拉特', code: '+1664' },
				{ name: '摩洛哥', code: '+212' },
				{ name: '莫桑比克', code: '+258' },
				{ name: '缅甸', code: '+95' },
				{ name: '纳米比亚', code: '+264' },
				{ name: '瑙鲁', code: '+674' },
				{ name: '尼泊尔', code: '+977' },
				{ name: '荷兰', code: '+31' },
				{ name: '荷属安的列斯', code: '+599' },
				{ name: '新喀里多尼亚', code: '+687' },
				{ name: '新西兰', code: '+64' },
				{ name: '尼加拉瓜', code: '+505' },
				{ name: '尼日尔', code: '+227' },
				{ name: '尼日利亚', code: '+234' },
				{ name: '纽埃', code: '+683' },
				{ name: '诺福克岛', code: '+672' },
				{ name: '北马里亚纳群岛', code: '+1670' },
				{ name: '挪威', code: '+47' },
				{ name: '阿曼', code: '+968' },
				{ name: '巴基斯坦', code: '+92' },
				{ name: '帕劳', code: '+680' },
				{ name: '巴勒斯坦', code: '+970' },
				{ name: '巴拿马', code: '+507' },
				{ name: '巴布亚新几内亚', code: '+675' },
				{ name: '巴拉圭', code: '+595' },
				{ name: '秘鲁', code: '+51' },
				{ name: '菲律宾', code: '+63' },
				{ name: '波兰', code: '+48' },
				{ name: '葡萄牙', code: '+351' },
				{ name: '波多黎各', code: '+1787' },
				{ name: '卡塔尔', code: '+974' },
				{ name: '罗马尼亚', code: '+40' },
				{ name: '俄罗斯', code: '+7' },
				{ name: '卢旺达', code: '+250' },
				{ name: '留尼汪', code: '+262' },
				{ name: '圣赫勒拿', code: '+290' },
				{ name: '圣基茨和尼维斯', code: '+1869' },
				{ name: '圣卢西亚', code: '+1758' },
				{ name: '圣皮埃尔和密克隆', code: '+508' },
				{ name: '圣文森特和格林纳丁斯', code: '+1784' },
				{ name: '萨摩亚', code: '+685' },
				{ name: '圣马力诺', code: '+378' },
				{ name: '圣多美和普林西比', code: '+239' },
				{ name: '沙特阿拉伯', code: '+966' },
				{ name: '塞内加尔', code: '+221' },
				{ name: '塞尔维亚', code: '+381' },
				{ name: '塞舌尔', code: '+248' },
				{ name: '塞拉利昂', code: '+232' },
				{ name: '新加坡', code: '+65' },
				{ name: '斯洛伐克', code: '+421' },
				{ name: '斯洛文尼亚', code: '+386' },
				{ name: '所罗门群岛', code: '+677' },
				{ name: '索马里', code: '+252' },
				{ name: '南非', code: '+27' },
				{ name: '南苏丹', code: '+211' },
				{ name: '西班牙', code: '+34' },
				{ name: '斯里兰卡', code: '+94' },
				{ name: '苏丹', code: '+249' },
				{ name: '苏里南', code: '+597' },
				{ name: '斯威士兰', code: '+268' },
				{ name: '瑞典', code: '+46' },
				{ name: '瑞士', code: '+41' },
				{ name: '叙利亚', code: '+963' },
				{ name: '塔吉克斯坦', code: '+992' },
				{ name: '坦桑尼亚', code: '+255' },
				{ name: '泰国', code: '+66' },
				{ name: '多哥', code: '+228' },
				{ name: '汤加', code: '+676' },
				{ name: '特立尼达和多巴哥', code: '+1868' },
				{ name: '突尼斯', code: '+216' },
				{ name: '土耳其', code: '+90' },
				{ name: '土库曼斯坦', code: '+993' },
				{ name: '特克斯和凯科斯群岛', code: '+1649' },
				{ name: '图瓦卢', code: '+688' },
				{ name: '乌干达', code: '+256' },
				{ name: '乌克兰', code: '+380' },
				{ name: '阿联酋', code: '+971' },
				{ name: '英国', code: '+44' },
				{ name: '美国', code: '+1' },
				{ name: '乌拉圭', code: '+598' },
				{ name: '乌兹别克斯坦', code: '+998' },
				{ name: '瓦努阿图', code: '+678' },
				{ name: '梵蒂冈', code: '+379' },
				{ name: '委内瑞拉', code: '+58' },
				{ name: '越南', code: '+84' },
				{ name: '英属维尔京群岛', code: '+1284' },
				{ name: '美属维尔京群岛', code: '+1340' },
				{ name: '瓦利斯和富图纳', code: '+681' },
				{ name: '西撒哈拉', code: '+212' },
				{ name: '也门', code: '+967' },
				{ name: '赞比亚', code: '+260' },
				{ name: '津巴布韦', code: '+263' }
			],
			// 筛选后的区号列表
			filteredCodeList: []
		};
	},
	computed: {
		// 根据区号获取手机号最大长度（扩展更多常用国家）
		getPhoneMaxlength() {
			switch (this.selectedCode) {
				case '+86':
					return 11; // 中国大陆
				case '+852':
				case '+853':
					return 8; // 港澳
				case '+886':
					return 9; // 台湾
				case '+1':
					return 10; // 美国/加拿大
				case '+44':
					return 11; // 英国
				case '+81':
					return 10; // 日本
				case '+82':
					return 10; // 韩国
				case '+65':
					return 8; // 新加坡
				case '+60':
					return 9; // 马来西亚
				case '+91':
					return 10; // 印度
				case '+61':
					return 9; // 澳大利亚
				case '+33':
					return 10; // 法国
				case '+49':
					return 11; // 德国
				case '+34':
					return 9; // 西班牙
				case '+39':
					return 10; // 意大利
				default:
					return 20; // 其他国家默认
			}
		}
	},
	watch: {
		// 监听初始区号变化
		initCode: {
			immediate: true,
			handler(val) {
				this.selectedCode = val;
				this.filteredCodeList = [...this.codeList];
			}
		}
	},
	methods: {
		// 优化筛选逻辑：支持拼音/汉字/区号模糊匹配
		filterCodeList() {
			if (!this.searchKeyword) {
				this.filteredCodeList = [...this.codeList];
				return;
			}
			const keyword = this.searchKeyword.trim().toLowerCase();
			// 模糊搜索名称（中文）或区号
			this.filteredCodeList = this.codeList.filter((item) => {
				return item.name.toLowerCase().includes(keyword) || item.code.toLowerCase().includes(keyword);
			});
		},
		// 选择区号
		selectCode(item) {
			this.selectedCode = item.code;
			this.showCodePicker = false;
			this.$emit('code-change', item.code);
			this.validatePhone();
		},
		// 手机号输入处理
		handlePhoneInput() {
			this.$emit('phone-change', {
				code: this.selectedCode,
				phone: this.phoneNumber
			});
			this.validatePhone();
		},
		// 手机号格式校验（扩展常用国家）
		validatePhone() {
			let isValid = true;
			let message = '';

			// 空值校验
			if (this.required && !this.phoneNumber) {
				isValid = false;
				message = '请输入手机号';
			} else if (this.phoneNumber) {
				// 扩展更多国家的校验规则
				const phone = this.phoneNumber;
				switch (this.selectedCode) {
					case '+86': // 中国大陆
						isValid = /^1[3-9]\d{9}$/.test(phone);
						message = isValid ? '' : '请输入正确的中国大陆手机号';
						break;
					case '+852':
					case '+853': // 港澳
						isValid = /^\d{8}$/.test(phone);
						message = isValid ? '' : `请输入正确的${this.selectedCode === '+852' ? '香港' : '澳门'}手机号`;
						break;
					case '+886': // 台湾
						isValid = /^\d{10}$/.test(phone);
						message = isValid ? '' : '请输入正确的台湾手机号';
						break;
					case '+1': // 美国/加拿大
						isValid = /^\d{10}$/.test(phone);
						message = isValid ? '' : '请输入正确的美国/加拿大手机号';
						break;
					case '+65': // 新加坡
						isValid = /^\d{8}$/.test(phone);
						message = isValid ? '' : '请输入正确的新加坡手机号';
						break;
					// 其他国家仅校验非空，可根据需求扩展
					default:
						isValid = phone.length > 0;
						message = isValid ? '' : '请输入正确的手机号';
				}
			}

			this.$emit('validate', {
				isValid,
				message,
				fullPhone: `${this.selectedCode}${this.phoneNumber}`
			});

			return isValid;
		},
		// 对外暴露的获取完整手机号方法
		getFullPhone() {
			const isValid = this.validatePhone();
			return {
				isValid,
				fullPhone: isValid ? `${this.selectedCode}${this.phoneNumber}` : ''
			};
		}
	}
};
</script>

<style scoped lang="scss">
.phone-input-container {
	width: 100%;
}

.phone-input-wrap {
	display: flex;
}

.code-selector {
	display: flex;
	align-items: center;
	margin-right: 20rpx;
	min-width: 80rpx;
}

.code-text {
	font-size: 30rpx;
	color: #002846;
	margin-right: 8rpx;
	margin-left: 50rpx;
	line-height: 48rpx;
}

.phone-input {
	flex: 1;
	font-size: 32rpx;
	color: #333;
	height: 60rpx;
}

.code-picker-wrap {
	background: #fff;
	padding: 30rpx 20rpx 40rpx;
	border-radius: 20rpx 20rpx 0 0;

	.title {
		position: relative;
		text-align: center;

		text {
			font-size: 36rpx;
			font-family: PingFang-SC-Bold, PingFang-SC;
			font-weight: bold;
			color: #333333;
		}

		image {
			width: 46rpx;
			height: 46rpx;
			position: absolute;
			right: 10rpx;
			top: 50%;
			margin-top: -23rpx;
		}
	}
}

.search-wrap {
	padding: 20rpx;
	border-bottom: 1px solid #f5f5f5;
}

.search-input {
	width: 100%;
	height: 72rpx;
	padding: 0 20rpx;
	border: 1px solid #e5e5e5;
	border-radius: 8rpx;
	box-sizing: border-box;
	font-size: 30rpx;
	margin-top: 20rpx;
}

.code-list-scroll {
	width: 100%;
}

.code-item {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 24rpx 20rpx;
	border-bottom: 1px solid #f5f5f5;
	font-size: 30rpx;
}

.country-name {
	color: #333;
}

.code-num {
	color: #666;
}

.empty-tip {
	text-align: center;
	padding: 40rpx 0;
	font-size: 28rpx;
	color: #999;
}
</style>
