<template>
    <view class="scroll-container theme-light">
        <view class="bt-page mi-course-list">
            <MemberInfoSubNav title="预约课程" @back="goBack" />
            <view class="mi-course-list__filters">
                <view class="mi-course-list__date-bar">
                    <view
                        class="mi-course-list__mode"
                        hover-class="mi-tap--hover"
                        @tap="toggleDateMode"
                    >
                        <text class="mi-course-list__mode-text">{{ dateMode === 'day' ? '按天' : '按周' }}</text>
                    </view>
                    <scroll-view scroll-x class="mi-course-list__dates">
                        <view
                            v-for="d in dateOptions"
                            :key="d.value"
                            class="mi-course-list__date"
                            :class="{ 'mi-course-list__date--active': selectedDate === d.value }"
                            @tap="selectedDate = d.value"
                        >
                            <text class="mi-course-list__date-week">{{ d.week }}</text>
                            <text class="mi-course-list__date-day">{{ d.day }}</text>
                        </view>
                    </scroll-view>
                </view>
                <scroll-view scroll-x class="mi-course-list__chips">
                    <view
                        v-for="t in typeOptions"
                        :key="t.key"
                        class="bt-tab"
                        :class="{ 'bt-tab--active': courseType === t.key }"
                        @tap="courseType = t.key"
                    >
                        <text class="bt-tab__text">{{ t.label }}</text>
                    </view>
                </scroll-view>
                <view class="mi-course-list__row">
                    <picker :range="coaches" @change="onCoachChange">
                        <view class="mi-course-list__picker">
                            <text>{{ coach }}</text>
                            <image class="mi-course-list__arrow" src="/static/images/chevronright3.png" mode="aspectFit" />
                        </view>
                    </picker>
                    <picker :range="periodLabels" @change="onPeriodChange">
                        <view class="mi-course-list__picker">
                            <text>{{ periodLabel }}</text>
                            <image class="mi-course-list__arrow" src="/static/images/chevronright3.png" mode="aspectFit" />
                        </view>
                    </picker>
                </view>
            </view>

            <view class="bt-page__body">
                <view
                    v-for="course in displayCourses"
                    :key="course.id"
                    class="mi-course-card"
                    hover-class="mi-tap-card--hover"
                    @tap="openDetail(course)"
                >
                    <image class="mi-course-card__banner" :src="course.banner" mode="aspectFill" />
                    <view class="mi-course-card__body">
                        <view class="mi-course-card__head">
                            <text class="mi-course-card__title">{{ course.title }}</text>
                            <view class="mi-course-card__type" :class="'mi-course-card__type--' + course.type">
                                <text>{{ course.type === 'group' ? '团课' : '私教' }}</text>
                            </view>
                        </view>
                        <view class="mi-course-card__coach">
                            <image class="mi-course-card__avatar" :src="course.coachAvatar" mode="aspectFill" />
                            <text>{{ course.coach }}</text>
                        </view>
                        <text class="mi-course-card__meta">
                            {{ course.startTime }}-{{ course.endTime }} · {{ course.location }}
                        </text>
                        <view class="mi-course-card__capacity">
                            <view class="mi-course-card__bar">
                                <view class="mi-course-card__bar-fill" :style="{ width: course.percent + '%' }"></view>
                            </view>
                            <text class="mi-course-card__cap-text">{{ course.enrolled }}/{{ course.capacity }}</text>
                            <text v-if="course.scarcityLabel" class="mi-course-card__scarcity">{{ course.scarcityLabel }}</text>
                        </view>
                        <view class="mi-course-card__footer">
                            <text class="mi-course-card__price">{{ course.price }}</text>
                            <view
                                class="mi-course-card__btn"
                                :class="{ 'mi-course-card__btn--disabled': course.full }"
                                @tap.stop="quickBook(course)"
                            >
                                <text>{{ course.full ? '已约满' : '预约' }}</text>
                            </view>
                        </view>
                    </view>
                </view>
                <view v-if="!displayCourses.length" class="bt-empty">
                    <text class="bt-empty__text">暂无符合条件的课程</text>
                </view>
            </view>

            <view
                class="mi-course-list__fab"
                hover-class="mi-tap-btn--hover"
                @tap="goMyBooking"
            >
                <image class="mi-course-list__fab-icon" src="/static/images/clock.png" mode="aspectFit" />
                <text class="mi-course-list__fab-text">我的预约</text>
            </view>
        </view>
    </view>
</template>

<script>
import MemberInfoSubNav from '@/components/memberInfo/MemberInfoSubNav.vue'
import { PAGE, navigateToPage } from '@/common/constants/routes.js'
import { loadMemberStore, persistMemberStore } from '@/common/memberInfo/store.js'
import {
    courseCatalogMock,
    filterCourses,
    enrichCourseForDisplay,
    getWeekDates,
    bookCourse
} from '@/common/memberInfo/bookingStore.js'
import { subPageMixin } from '@/common/memberInfo/mixins.js'

const WEEK = ['日', '一', '二', '三', '四', '五', '六']

export default {
    components: { MemberInfoSubNav },
    mixins: [subPageMixin],
    data() {
        return {
            dateMode: 'day',
            selectedDate: '2024-07-15',
            courseType: 'all',
            coach: '全部',
            period: 'all',
            coaches: courseCatalogMock.coaches,
            typeOptions: courseCatalogMock.typeOptions,
            periodOptions: courseCatalogMock.periodOptions,
            courses: []
        }
    },
    computed: {
        periodLabels() {
            return this.periodOptions.map((p) => p.label)
        },
        periodLabel() {
            return this.periodOptions.find((p) => p.key === this.period)?.label || '全部时段'
        },
        weekDates() {
            return getWeekDates(this.selectedDate)
        },
        dateOptions() {
            const dates = this.dateMode === 'week' ? this.weekDates : this.weekDates
            return dates.map((value) => {
                const d = new Date(value.replace(/-/g, '/'))
                return {
                    value,
                    week: WEEK[d.getDay()],
                    day: `${d.getMonth() + 1}/${d.getDate()}`
                }
            })
        },
        displayCourses() {
            const filters = {
                date: this.dateMode === 'day' ? this.selectedDate : '',
                weekDates: this.dateMode === 'week' ? this.weekDates : [],
                type: this.courseType,
                coach: this.coach,
                period: this.period
            }
            return filterCourses(this.courses, filters).map(enrichCourseForDisplay)
        }
    },
    onShow() {
        const store = loadMemberStore()
        this.courses = store.courseCatalog.map((c) => ({ ...c }))
        if (!this.selectedDate && this.courses.length) {
            this.selectedDate = this.courses[0].date
        }
    },
    methods: {
        toggleDateMode() {
            this.dateMode = this.dateMode === 'day' ? 'week' : 'day'
        },
        onCoachChange(e) {
            this.coach = this.coaches[e.detail.value]
        },
        onPeriodChange(e) {
            this.period = this.periodOptions[e.detail.value].key
        },
        openDetail(course) {
            navigateToPage(`${PAGE.COURSE_DETAIL}?id=${course.id}`)
        },
        quickBook(course) {
            if (course.full) return
            navigateToPage(`${PAGE.COURSE_DETAIL}?id=${course.id}`)
        },
        goMyBooking() {
            navigateToPage(PAGE.BOOKING)
        }
    }
}
</script>

<style>
@import '@/common/style/base.css';
@import '@/common/style/memberInfo/pages/page-reset.css';
@import '@/common/style/memberInfo/pages/sub-page-base.css';
@import '@/common/style/memberInfo/member-info-component-reset.css';
@import '@/common/style/memberInfo/member-info-sub-nav.css';
@import '@/common/style/memberInfo/member-info-tap.css';
@import '@/common/style/memberInfo/pages/body-test-common.css';
@import '@/common/style/memberInfo/pages/module-pages-common.css';
@import '@/common/style/memberInfo/pages/course-list-page.css';
</style>
