<template>
    <div class="login">
        <div class="tabs">
            <div class="tab active">{{ step ? '绑定新号码' : '修改手机号' }}</div>
            <div class="text">修改手机号即同时修改登录账户名称</div>
        </div>

        <van-form v-if="step === 0" @submit="next">
            <van-cell class="phone" :title="phone" label="修改手机号需先验证当前手机号" />
            <van-field
                type="digit"
                name="验证码"
                placeholder="请输入验证码"
                v-model="form.code"
                :maxlength="4"
                :rules="[{ required: true, message: '请输入验证码' }]"
            >
                <template #left-icon>
                    <img :src="require('@assets/svgs/login_icon_code.svg')" class="icon" />
                </template>
                <template #button>
                    <van-button
                        @click="sendBefPhone"
                        class="sub-code"
                        size="small"
                        plain
                        type="primary"
                        :disabled="isSend"
                    >
                        {{ isSend ? `已发送(${sendNum})S` : '发送验证码' }}
                    </van-button>
                </template>
            </van-field>

            <div class="button">
                <van-button
                    round
                    block
                    native-type="submit"
                    :color="`linear-gradient(to right, ${$colors.prim}, ${$colors.warn})`"
                    class="sure"
                    >下一步</van-button
                >
            </div>
        </van-form>

        <van-form v-else ref="form" @submit="submit">
            <van-field
                type="tel"
                name="用户名"
                placeholder="请输入手机号"
                v-model="form.phone"
                :maxlength="11"
                :rules="[
                    { required: true, message: '请输入手机号码' },
                    {
                        pattern: phonePattern,
                        message: '手机号码格式错误'
                    }
                ]"
            >
                <template #left-icon>
                    <img :src="require('@assets/svgs/login_icon_zhanghao.svg')" class="icon" />
                </template>
            </van-field>

            <van-field
                type="digit"
                name="验证码"
                placeholder="请输入验证码"
                v-model="form.code"
                :maxlength="4"
                :rules="[{ required: true, message: '请输入验证码' }]"
            >
                <template #left-icon>
                    <img :src="require('@assets/svgs/login_icon_code.svg')" class="icon" />
                </template>
                <template #button>
                    <van-button
                        @click="sendPhone"
                        class="sub-code"
                        size="small"
                        plain
                        type="primary"
                        :disabled="isSend"
                    >
                        {{ isSend ? `已发送(${sendNum})S` : '发送验证码' }}
                    </van-button>
                </template>
            </van-field>

            <div class="button">
                <van-button
                    round
                    block
                    native-type="submit"
                    :color="`linear-gradient(to right, ${$colors.prim}, ${$colors.warn})`"
                    class="sure"
                    >确定修改</van-button
                >
            </div>
        </van-form>
    </div>
</template>

<script>
import { mapState } from 'vuex';
import phone from '../../mixins/phone';
export default {
    mixins: [phone],
    data() {
        return {
            step: 0,
            form: {
                phone: '',
                code: ''
            }
        };
    },
    computed: {
        ...mapState(['userInfo']),
        phone() {
            let phone = this.userInfo.phone || '';
            return phone.substr(0, 3) + '****' + phone.substr(7, 6);
        }
    },
    methods: {
        sendBefPhone() {
            this.sendMsg(this.userInfo.phone);
        },
        sendPhone() {
            this.$refs.form.validate('手机号码').then(() => {
                this.sendMsg(this.form.phone);
            });
        },
        submit() {
            this.$toast.loading({
                message: '加载中...',
                forbidClick: true
            });
            this.verifyMsg(this.form.phone, this.form.code)
                .then(() => {
                    return this.$http.post('/user/bindPhone?phone=' + this.form.phone);
                })
                .then(() => {
                    this.$toast.success('修改成功');
                    setTimeout(() => {
                        this.$router.back();
                    }, 1500);
                })
                .catch(e => {
                    if (e) {
                        this.$toast(e.error);
                    }
                });
        },
        next() {
            this.verifyMsg(this.userInfo.phone, this.form.code).then(res => {
                this.setTime(0);
                this.step = 1;
            });
        }
    }
};
</script>

<style lang="less" scoped>
.login {
    padding: 40px 16px 100px;
}

.van-form {
    padding: 0 30px;
}

.tabs {
    .tab {
        font-size: 18px;
        color: #c8c9cc;
        line-height: 25px;

        &.active {
            font-size: 24px;
            font-weight: bold;
            color: @text0;
            line-height: 33px;
        }
    }

    .text {
        font-size: 12px;
        color: @text3;
        line-height: 22px;
        margin-top: 4px;
    }
}

.icon {
    display: block;
    margin-top: 12px;
}
/deep/ .van-form {
    margin-top: 28px;
    .van-cell {
        padding: 0px 0;

        .van-field__left-icon {
            margin-right: 8px;
        }
    }

    .van-cell + .van-cell {
        margin-top: 20px;
    }
    .van-field__body {
        height: 44px;
        align-items: center;
    }
}
.button {
    margin-top: 120px;

    .del {
        margin-top: 20px;
        border-color: @text0;
    }

    .sure {
        color: @bg !important;
    }

    .van-button {
        font-weight: bold;
    }
}

.sub-code {
    padding-right: 0;
    border-width: 0;
}

/deep/.phone {
    .van-cell__title > span {
        font-size: 20px;
        font-weight: bold;
    }

    .van-cell__label {
        color: @text3;
    }
}
</style>
