/* Copyright (c) 2025-2026 马建军. All rights reserved.
 * 专有软件 — 未经授权禁止复制、传播、转售。
 * 详见 LICENSE.zh-CN.txt
 */
(function () {
    var trendPayload = null;

    function jsonPost(url, body) {
        return fetch(url, {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify(body || {})
        }).then(function (r) { return r.json(); });
    }

    function formData(form) {
        var fd = new FormData(form);
        var o = {};
        fd.forEach(function (v, k) { o[k] = v; });
        return o;
    }

    function esc(s) {
        return String(s == null ? '' : s)
            .replace(/&/g, '&')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;');
    }

    function showPreview(el, content, ok, isHtml) {
        if (!el) return;
        if (!content) {
            el.hidden = true;
            el.textContent = '';
            el.innerHTML = '';
            return;
        }
        el.hidden = false;
        el.style.color = ok === false ? 'var(--loss)' : '';
        if (isHtml) {
            el.innerHTML = content;
        } else {
            el.innerHTML = '';
            el.textContent = content;
        }
    }

    function fmtNum(v) {
        if (v == null || v === '') return '—';
        return String(v);
    }

    function renderTrendPlanHtml(plan) {
        if (!plan) return '';
        var summary = plan.summary_line || (
            (plan.symbol_name || plan.symbol || '') + ' ' +
            (plan.direction_label || '') + ' ' + (plan.period_label || '')
        );
        var detail = plan.detail_line || '';
        var rows = plan.preview_rows || [];
        var html = '<div class="trend-summary">' + esc(summary) + '</div>';
        if (detail) {
            html += '<div class="trend-detail">' + esc(detail) + '</div>';
        }
        if (rows.length) {
            html += '<table class="strategy-preview-table"><thead><tr>' +
                '<th>档位</th><th>触发/参考价</th><th>手数</th><th>加仓后均价</th>' +
                '<th>止盈盈利(元)</th><th>止损(元)</th><th>盈亏比</th>' +
                '</tr></thead><tbody>';
            rows.forEach(function (row) {
                html += '<tr><td>' + esc(row.level) + '</td>' +
                    '<td>' + fmtNum(row.price) + '</td>' +
                    '<td>' + fmtNum(row.lots) + '</td>' +
                    '<td>' + fmtNum(row.avg_after) + '</td>' +
                    '<td>' + fmtNum(row.profit_at_tp) + '</td>' +
                    '<td>' + fmtNum(row.loss_at_sl) + '</td>' +
                    '<td>' + fmtNum(row.rr_ratio) + '</td></tr>';
            });
            html += '</tbody></table>';
        } else {
            html += '<div class="trend-detail">目标手数 ' + fmtNum(plan.target_lots) +
                ' · 首仓 ' + fmtNum(plan.first_lots) + ' 手</div>';
        }
        return html;
    }

    function formatRoll(preview) {
        if (!preview) return '';
        var lines = [];
        if (preview.add_mode_label) lines.push('方式：' + preview.add_mode_label);
        if (preview.add_lots != null) lines.push('加仓手数：' + preview.add_lots);
        if (preview.qty_after != null) lines.push('合计手数：' + preview.qty_after);
        if (preview.avg_entry_after != null) lines.push('加仓后均价：' + preview.avg_entry_after);
        if (preview.new_stop_loss != null) lines.push('新止损：' + preview.new_stop_loss);
        if (preview.trigger_price != null) lines.push('触发价：' + preview.trigger_price);
        if (preview.risk_budget != null) lines.push('风险预算（固定金额）：' + preview.risk_budget + ' 元');
        if (preview.loss_at_sl != null) lines.push('打到止损亏损：' + preview.loss_at_sl + ' 元');
        if (preview.reward_at_tp != null) lines.push('止盈盈利：' + preview.reward_at_tp + ' 元');
        if (preview.margin_usage_pct != null) {
            lines.push('滚仓后保证金占用：' + preview.margin_usage_pct + '%');
        }
        if (preview.margin_cap_note) lines.push(preview.margin_cap_note);
        if (preview.is_pending) lines.push('（提交后为程序监控，触价后自动市价加仓）');
        return lines.length ? lines.join('\n') : JSON.stringify(preview, null, 2);
    }

    function syncRollModeUi() {
        var modeEl = document.getElementById('roll-add-mode');
        var breakEl = document.getElementById('roll-break-price');
        var execHint = document.getElementById('roll-exec-hint');
        var btnExec = document.getElementById('btn-roll-exec');
        if (!modeEl) return;
        var mode = modeEl.value || 'market';
        var isBreak = mode === 'breakout';
        if (breakEl) {
            breakEl.hidden = !isBreak;
            breakEl.required = isBreak;
        }
        if (execHint) execHint.hidden = false;
        if (btnExec) {
            btnExec.textContent = mode === 'market' ? '执行滚仓' : '提交监控';
        }
    }

    function syncRollRiskHint() {
        /* 固定金额由服务端渲染在 #roll-risk-budget，切换监控单无需变更 */
    }

    var rollCountdownTimer = null;

    function startRollCountdown(btn, payload) {
        var sec = 10;
        btn.disabled = true;
        function tick() {
            btn.textContent = '确认执行 (' + sec + 's)';
            if (sec <= 0) {
                clearInterval(rollCountdownTimer);
                rollCountdownTimer = null;
                jsonPost('/api/strategy/roll/execute', payload).then(function (d) {
                    if (!d.ok) { alert(d.error || d.message || '失败'); btn.disabled = false; btn.textContent = '执行滚仓'; return; }
                    alert(d.message || '已提交');
                    location.reload();
                }).catch(function () {
                    btn.disabled = false;
                    btn.textContent = '执行滚仓';
                });
                return;
            }
            sec -= 1;
        }
        tick();
        rollCountdownTimer = setInterval(tick, 1000);
    }

    var trendForm = document.getElementById('trend-form');
    var btnPreview = document.getElementById('btn-trend-preview');
    var btnExec = document.getElementById('btn-trend-exec');
    var previewEl = document.getElementById('trend-preview');

    if (btnPreview && trendForm) {
        btnPreview.addEventListener('click', function () {
            btnPreview.disabled = true;
            jsonPost('/api/strategy/trend/preview', formData(trendForm)).then(function (d) {
                if (!d.ok) {
                    showPreview(previewEl, d.error || '预览失败', false, false);
                    btnExec.hidden = true;
                    return;
                }
                trendPayload = formData(trendForm);
                showPreview(previewEl, renderTrendPlanHtml(d.plan), true, true);
                btnExec.hidden = false;
            }).finally(function () {
                btnPreview.disabled = false;
            });
        });
    }
    if (btnExec) {
        btnExec.addEventListener('click', function () {
            if (!trendPayload) return;
            btnExec.disabled = true;
            btnExec.textContent = '执行中…';
            jsonPost('/api/strategy/trend/execute', trendPayload).then(function (d) {
                if (!d.ok) { alert(d.error); return; }
                location.reload();
            }).finally(function () {
                btnExec.disabled = false;
                btnExec.textContent = '确认执行首仓';
            });
        });
    }

    var rollForm = document.getElementById('roll-form');
    var btnRollP = document.getElementById('btn-roll-preview');
    var btnRollE = document.getElementById('btn-roll-exec');
    var rollPrev = document.getElementById('roll-preview');
    var rollPayload = null;
    var rollMonitorSel = document.getElementById('roll-monitor-select');
    var rollModeSel = document.getElementById('roll-add-mode');

    if (rollModeSel) rollModeSel.addEventListener('change', syncRollModeUi);
    if (rollMonitorSel) rollMonitorSel.addEventListener('change', syncRollRiskHint);
    syncRollModeUi();
    syncRollRiskHint();

    if (btnRollP && rollForm) {
        btnRollP.addEventListener('click', function () {
            btnRollP.disabled = true;
            rollPayload = formData(rollForm);
            jsonPost('/api/strategy/roll/preview', rollPayload).then(function (d) {
                if (!d.ok) {
                    showPreview(rollPrev, d.error, false, false);
                    btnRollE.hidden = true;
                    return;
                }
                showPreview(rollPrev, formatRoll(d.preview), true, false);
                btnRollE.hidden = false;
            }).finally(function () {
                btnRollP.disabled = false;
            });
        });
    }
    if (btnRollE && rollForm) {
        btnRollE.addEventListener('click', function () {
            var payload = rollPayload || formData(rollForm);
            var mode = (payload.add_mode || 'market');
            if (mode === 'market') {
                if (!confirm('确认执行市价滚仓？')) return;
                startRollCountdown(btnRollE, payload);
                return;
            }
            btnRollE.disabled = true;
            btnRollE.textContent = '提交中…';
            jsonPost('/api/strategy/roll/execute', payload).then(function (d) {
                if (!d.ok) { alert(d.error || '失败'); return; }
                alert(d.message || '已提交监控');
                location.reload();
            }).finally(function () {
                btnRollE.disabled = false;
                syncRollModeUi();
            });
        });
    }

    document.querySelectorAll('.roll-cancel-leg').forEach(function (btn) {
        btn.addEventListener('click', function () {
            var legId = btn.getAttribute('data-leg-id');
            if (!legId || !confirm('删除该监控腿？')) return;
            jsonPost('/api/strategy/roll/cancel/' + legId, {}).then(function (d) {
                if (!d.ok) { alert(d.error); return; }
                location.reload();
            });
        });
    });

    var btnStop = document.getElementById('btn-trend-stop');
    if (btnStop) {
        btnStop.addEventListener('click', function () {
            var pid = document.querySelector('#trend-stop-form input[name=plan_id]');
            jsonPost('/api/strategy/trend/stop', { plan_id: pid ? pid.value : 0 }).then(function (d) {
                if (!d.ok) { alert(d.error); return; }
                location.reload();
            });
        });
    }
})();