(function () {
    var viewport = document.getElementById('appViewport');
    var table = document.getElementById('tierTable');
    var currentData = null;

    var mockData = {
        targetReward: '1000',
        user: {
            name: 'Namename...',
            id: '123456789',
            avatar: './assets/294_8091.png',
            contributionReward: '100',
            weeklyReward: '100',
            canClaimContribution: true,
            canClaimWeeklyReward: false,
        },
        tiers: [
            { turnover: '7M', reward: '350k' },
            { turnover: '7M', reward: '350k' },
            { turnover: '7M', reward: '350k' },
            { turnover: '7M', reward: '350k' },
            { turnover: '7M', reward: '350k' },
            { turnover: '7M', reward: '350k' },
            { turnover: '7M', reward: '350k' },
        ],
    };

    function escapeHTML(value) {
        return String(value == null ? '' : value)
            .replace(/&/g, '&')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/"/g, '&quot;')
            .replace(/'/g, '&#39;');
    }

    function t(key, fallback) {
        if (window.HyAppI18n && window.HyAppI18n.t) {
            return window.HyAppI18n.t(key, fallback);
        }
        return fallback;
    }

    function syncStaticText() {
        document.title = t('roomReward.pageTitle', 'Room Reward Event');
    }

    function userIDText(value) {
        return t('roomReward.idPrefix', 'ID:') + ' ' + value;
    }

    function renderTable(data) {
        data = data || mockData;
        var rows = [
            '<div class="tier-row is-head">',
            '<div data-i18n="roomReward.turnover">',
            t('roomReward.turnover', 'Room turnover'),
            '</div>',
            '<div data-i18n="roomReward.receiveReward">',
            t('roomReward.receiveReward', 'Receive a reward'),
            '</div>',
            '</div>',
        ];

        (data.tiers || []).forEach(function (item) {
            rows.push(
                [
                    '<div class="tier-row">',
                    '<div>',
                    escapeHTML(item.turnover),
                    '</div>',
                    '<div class="tier-reward">',
                    '<span>',
                    escapeHTML(item.reward),
                    '</span>',
                    '<img class="mini-coin" src="./assets/296_8275.png" alt="" aria-hidden="true" />',
                    '</div>',
                    '</div>',
                ].join('')
            );
        });

        table.innerHTML = rows.join('');
        if (window.HyAppI18n && window.HyAppI18n.apply) {
            window.HyAppI18n.apply(table);
        }
    }

    function renderUser(data) {
        data = data || mockData;
        document.getElementById('targetReward').textContent = data.targetReward;
        document.getElementById('userAvatar').src = data.user.avatar;
        document.getElementById('userName').textContent =
            data.user.name || t('roomReward.roomOwner', 'Room owner');
        document.getElementById('userId').textContent = userIDText(data.user.id);
        document.getElementById('contributionValue').textContent =
            data.user.contributionReward;
        document.getElementById('weeklyRewardValue').textContent =
            data.user.weeklyReward;

        var contributionButton = document.getElementById('contributionButton');
        var rewardsButton = document.getElementById('rewardsButton');
        setButtonState(
            contributionButton,
            Boolean(data.user.canClaimContribution)
        );
        setButtonState(rewardsButton, Boolean(data.user.canClaimWeeklyReward));
    }

    function setButtonState(button, enabled) {
        var img = button.querySelector('img');
        button.disabled = !enabled;
        button.classList.toggle('is-disabled', !enabled);
        button.classList.toggle('is-active', enabled);
        if (img) {
            img.src = enabled
                ? button.getAttribute('data-active-src')
                : button.getAttribute('data-inactive-src');
        }
    }

    function updateBodyHeight() {
        var scale = window.innerWidth / 375;
        document.documentElement.style.setProperty('--app-scale', String(scale));
        document.body.style.minHeight =
            Math.ceil(viewport.offsetHeight * scale) + 'px';
    }

    function readQuery(name) {
        return new URLSearchParams(window.location.search).get(name);
    }

    function shouldUseMock() {
        return (
            readQuery('mock') === '1' ||
            window.location.protocol === 'file:' ||
            !window.HyAppAPI
        );
    }

    function compactNumber(value) {
        var number = Number(value || 0);
        if (!Number.isFinite(number)) return '0';
        if (number >= 1000000) return trimFixed(number / 1000000) + 'M';
        if (number >= 1000) return trimFixed(number / 1000) + 'k';
        return String(Math.floor(number));
    }

    function trimFixed(value) {
        var fixed = value >= 10 ? value.toFixed(0) : value.toFixed(1);
        return fixed.replace(/\.0$/, '');
    }

    function valueFrom(source) {
        for (var index = 1; index < arguments.length; index += 1) {
            var key = arguments[index];
            if (
                source &&
                source[key] !== undefined &&
                source[key] !== null &&
                source[key] !== ''
            ) {
                return source[key];
            }
        }
        return '';
    }

    function normalizeAPIData(payload) {
        var data = payload || {};
        var user = data.user || {};
        var room = data.room || {};
        var tiers = Array.isArray(data.tiers) ? data.tiers : [];
        var currentCoinSpent = Number(
            valueFrom(data, 'currentCoinSpent', 'current_coin_spent') || 0
        );
        var expectedReward = Number(
            valueFrom(
                data,
                'expectedRewardCoinAmount',
                'expected_reward_coin_amount'
            ) || 0
        );

        return {
            targetReward: compactNumber(expectedReward),
            user: {
                name:
                    valueFrom(user, 'username', 'name') ||
                    valueFrom(room, 'title'),
                id:
                    valueFrom(user, 'displayUserId', 'display_user_id') ||
                    valueFrom(user, 'userId', 'user_id') ||
                    valueFrom(room, 'ownerUserId', 'owner_user_id') ||
                    '-',
                avatar:
                    valueFrom(user, 'avatar') ||
                    valueFrom(room, 'coverUrl', 'cover_url') ||
                    './assets/294_8091.png',
                contributionReward: compactNumber(currentCoinSpent),
                weeklyReward: compactNumber(expectedReward),
                canClaimContribution: currentCoinSpent > 0,
                canClaimWeeklyReward: expectedReward > 0,
            },
            tiers: tiers.map(function (tier) {
                return {
                    turnover: compactNumber(
                        valueFrom(
                            tier,
                            'thresholdCoinSpent',
                            'threshold_coin_spent'
                        )
                    ),
                    reward: compactNumber(
                        valueFrom(tier, 'rewardCoinAmount', 'reward_coin_amount')
                    ),
                };
            }),
        };
    }

    function loadData() {
        if (shouldUseMock()) {
            return Promise.resolve(mockData);
        }
        return window.HyAppAPI.get('/api/v1/activities/room-turnover-reward')
            .then(normalizeAPIData)
            .catch(function (error) {
                console.warn('[room-reward] api fallback', error);
                return mockData;
            });
    }

    function render(data) {
        currentData = data || mockData;
        renderTable(currentData);
        renderUser(currentData);
    }

    function init() {
        syncStaticText();
        render(mockData);
        loadData().then(render);
        window.addEventListener('resize', updateBodyHeight);
        window.addEventListener('hyapp:i18n-ready', function () {
            syncStaticText();
            renderTable(currentData || mockData);
            renderUser(currentData || mockData);
        });
        updateBodyHeight();
    }

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init);
    } else {
        init();
    }
})();