(function () {
    function parseNum(v) {
        var n = parseFloat(v);
        return isNaN(n) ? null : n;
    }

    function calcRR(direction, entry, stop, target) {
        if (!entry || !stop || !target) return '';
        var risk, reward;
        if (direction === 'long') {
            risk = entry - stop;
            reward = target - entry;
        } else if (direction === 'short') {
            risk = stop - entry;
            reward = entry - target;
        } else {
            return '';
        }
        if (risk <= 0) return '';
        return (reward / risk).toFixed(2);
    }

    function calcDuration(openVal, closeVal) {
        if (!openVal || !closeVal) return '';
        var o = new Date(openVal);
        var c = new Date(closeVal);
        var secs = Math.floor((c - o) / 1000);
        if (secs < 0) return '';
        var h = Math.floor(secs / 3600);
        var m = Math.floor((secs % 3600) / 60);
        return h ? h + '小时' + m + '分钟' : m + '分钟';
    }

    function recalc() {
        var form = document.getElementById('review-form');
        if (!form) return;
        var dir = form.querySelector('[name="direction"]').value;
        var entry = parseNum(form.querySelector('[name="entry_price"]').value);
        var sl = parseNum(form.querySelector('[name="stop_loss"]').value);
        var tp = parseNum(form.querySelector('[name="take_profit"]').value);
        var close = parseNum(form.querySelector('[name="close_price"]').value);
        var openT = form.querySelector('[name="open_time"]').value;
        var closeT = form.querySelector('[name="close_time"]').value;

        var hold = document.getElementById('holding_duration');
        var initR = document.getElementById('initial_rr');
        var actR = document.getElementById('actual_rr');
        if (hold) hold.value = calcDuration(openT, closeT);
        if (initR) initR.value = calcRR(dir, entry, sl, tp);
        if (actR) actR.value = calcRR(dir, entry, sl, close);
    }

    function bindForm() {
        var form = document.getElementById('review-form');
        if (!form) return;
        form.querySelectorAll('input, select').forEach(function (el) {
            el.addEventListener('input', recalc);
            el.addEventListener('change', recalc);
        });
    }

    function showModal(data) {
        var mask = document.getElementById('review-modal');
        var body = document.getElementById('review-modal-body');
        if (!mask || !body) return;
        var html = '<div class="modal-grid">';
        var fields = [
            ['品种', data.symbol], ['方向', data.direction],
            ['成交价', data.entry_price], ['止损', data.stop_loss],
            ['止盈', data.take_profit], ['平仓价', data.close_price],
            ['张数', data.lots], ['开仓时间', data.open_time],
            ['平仓时间', data.close_time], ['持仓时长', data.holding_duration],
            ['初始盈亏比', data.initial_pnl], ['实际盈亏比', data.actual_pnl],
            ['盈亏金额', data.pnl], ['开仓类型', data.open_type],
            ['离场触发', data.exit_trigger], ['离场补充', data.exit_supplement],
            ['情绪单', data.is_emotion ? '是' : '否'],
            ['行为标签', data.behavior_tags], ['备注', data.notes]
        ];
        fields.forEach(function (pair) {
            html += '<div class="item"><label>' + pair[0] + '</label><div>' + (pair[1] || '-') + '</div></div>';
        });
        html += '</div>';
        if (data.screenshot) {
            html += '<div style="margin-top:1rem"><img src="/uploads/' + data.screenshot + '" style="max-width:100%;border-radius:8px"></div>';
        }
        body.innerHTML = html;
        mask.classList.add('show');
    }

    function bindModal() {
        var mask = document.getElementById('review-modal');
        if (!mask) return;
        mask.querySelector('.modal-close').addEventListener('click', function () {
            mask.classList.remove('show');
        });
        mask.addEventListener('click', function (e) {
            if (e.target === mask) mask.classList.remove('show');
        });
        document.querySelectorAll('.review-view-btn').forEach(function (btn) {
            btn.addEventListener('click', function () {
                try {
                    showModal(JSON.parse(btn.getAttribute('data-review')));
                } catch (e) { /* ignore */ }
            });
        });
    }

    document.addEventListener('DOMContentLoaded', function () {
        bindForm();
        bindModal();
        recalc();
    });
})();