{% extends "factor/base.html" %}
{% load static %}
{% load factor_tags %}

{% block title %}因子组合配置 - AgomTradePro{% endblock %}

{% block factor_content %}
<style>
#portfolioModal {
    display: none !important;
}

#portfolioModal.is-open {
    display: flex !important;
}
</style>
<!-- Header -->
<div class="factor-header">
    <h1>因子组合配置</h1>
    <div class="factor-actions">
        <button class="btn-factor" onclick="showCreateModal()">
            <i class="bi bi-plus-lg"></i> 新建组合
        </button>
        <button class="btn-factor secondary" onclick="refreshPortfolios()">
            <i class="bi bi-arrow-clockwise"></i> 刷新
        </button>
    </div>
</div>

<!-- Statistics -->
<div class="factor-stats">
    <div class="stat-card">
        <div class="stat-value">{{ stats.total }}</div>
        <div class="stat-label">总配置数</div>
    </div>
    <div class="stat-card">
        <div class="stat-value" style="color: #10b981;">{{ stats.active }}</div>
        <div class="stat-label">启用配置</div>
    </div>
    <div class="stat-card">
        <div class="stat-value" style="color: #64748b;">{{ stats.total|subtract:stats.active }}</div>
        <div class="stat-label">禁用配置</div>
    </div>
</div>

<!-- Filters -->
<div class="factor-filters">
    <div class="filter-group">
        <label>状态:</label>
        <select id="activeFilter" class="form-select" onchange="applyFilters()">
            <option value="">全部</option>
            <option value="true" {% if filter_is_active == 'true' %}selected{% endif %}>启用</option>
            <option value="false" {% if filter_is_active == 'false' %}selected{% endif %}>禁用</option>
        </select>
    </div>
    <div class="filter-group">
        <label>搜索:</label>
        <input type="text" id="searchInput" class="form-input" placeholder="名称/描述"
               value="{{ filter_search }}" onkeyup="debounceFilter()">
    </div>
</div>

<!-- Portfolio Configuration List -->
<div class="portfolio-list">
    {% for config in configs %}
    <div class="portfolio-card {% if not config.is_active %}inactive{% endif %}" data-id="{{ config.id }}">
        <div class="portfolio-main">
            <div class="portfolio-title">
                <span class="portfolio-name">{{ config.name }}</span>
                {% if config.is_active %}
                <span class="status-badge status-active">启用</span>
                {% else %}
                <span class="status-badge status-inactive">已禁用</span>
                {% endif %}
            </div>
            <div class="portfolio-desc">{{ config.description|default:"暂无描述" }}</div>

            <div class="portfolio-details">
                <div class="detail-section">
                    <h4>因子权重</h4>
                    <div class="factor-weights">
                        {% for factor_code, weight in config.factor_weights.items %}
                        <div class="weight-item">
                            <span class="factor-label">{{ factor_code }}</span>
                            <span class="weight-value">{{ weight|floatformat:2 }}</span>
                        </div>
                        {% empty %}
                        <span class="empty-text">未设置因子权重</span>
                        {% endfor %}
                    </div>
                </div>

                <div class="detail-section">
                    <h4>选股参数</h4>
                    <div class="params-grid">
                        <div class="param-item">
                            <span class="param-label">股票池</span>
                            <span class="param-value">{{ universe_choices|lookup:config.universe }}</span>
                        </div>
                        <div class="param-item">
                            <span class="param-label">选股数量</span>
                            <span class="param-value">{{ config.top_n }}</span>
                        </div>
                        <div class="param-item">
                            <span class="param-label">调仓频率</span>
                            <span class="param-value">{{ rebalance_choices|lookup:config.rebalance_frequency }}</span>
                        </div>
                        <div class="param-item">
                            <span class="param-label">权重方式</span>
                            <span class="param-value">{{ weight_method_choices|lookup:config.weight_method }}</span>
                        </div>
                    </div>
                </div>

                {% if config.min_market_cap or config.max_market_cap or config.max_pe or config.max_pb %}
                <div class="detail-section">
                    <h4>筛选条件</h4>
                    <div class="params-grid">
                        {% if config.min_market_cap %}
                        <div class="param-item">
                            <span class="param-label">最小市值</span>
                            <span class="param-value">{{ config.min_market_cap }}亿</span>
                        </div>
                        {% endif %}
                        {% if config.max_market_cap %}
                        <div class="param-item">
                            <span class="param-label">最大市值</span>
                            <span class="param-value">{{ config.max_market_cap }}亿</span>
                        </div>
                        {% endif %}
                        {% if config.max_pe %}
                        <div class="param-item">
                            <span class="param-label">最大PE</span>
                            <span class="param-value">{{ config.max_pe }}</span>
                        </div>
                        {% endif %}
                        {% if config.max_pb %}
                        <div class="param-item">
                            <span class="param-label">最大PB</span>
                            <span class="param-value">{{ config.max_pb }}</span>
                        </div>
                        {% endif %}
                    </div>
                </div>
                {% endif %}

                <div class="detail-section">
                    <h4>最新持仓</h4>
                    {% if config.latest_trade_date %}
                    <div class="holdings-info">
                        <span>日期: {{ config.latest_trade_date|date:"Y-m-d" }}</span>
                        <span>股票数: {{ config.holdings_count }}</span>
                    </div>
                    {% else %}
                    <div class="holdings-info">
                        <span class="empty-text">暂无持仓数据</span>
                    </div>
                    {% endif %}
                </div>
            </div>

            <div class="portfolio-meta">
                <span>创建时间: {{ config.created_at|date:"Y-m-d H:i" }}</span>
                <span>更新时间: {{ config.updated_at|date:"Y-m-d H:i" }}</span>
            </div>
        </div>

        <div class="portfolio-actions">
            <button class="action-btn view" onclick="viewPortfolio({{ config.id }})" title="查看详情">
                <i class="bi bi-eye"></i>
            </button>
            <button class="action-btn edit" onclick="editPortfolio({{ config.id }})" title="编辑">
                <i class="bi bi-pencil"></i>
            </button>
            {% if config.is_active %}
            <button class="action-btn toggle" onclick="togglePortfolio({{ config.id }})" title="禁用">
                <i class="bi bi-dash-circle"></i>
            </button>
            {% else %}
            <button class="action-btn toggle" onclick="togglePortfolio({{ config.id }})" title="启用">
                <i class="bi bi-check-circle"></i>
            </button>
            {% endif %}
            <button class="action-btn generate" onclick="generatePortfolio({{ config.id }})" title="生成组合">
                <i class="bi bi-play-circle"></i>
            </button>
            <button class="action-btn delete" onclick="deletePortfolio({{ config.id }})" title="删除">
                <i class="bi bi-trash"></i>
            </button>
        </div>
    </div>
    {% endfor %}
</div>

{% if not configs %}
<div class="empty-state">
    <div style="font-size: 48px; margin-bottom: 16px;">📊</div>
    <div>暂无组合配置</div>
</div>
{% endif %}

<!-- Create/Edit Modal -->
<div id="portfolioModal" class="modal-overlay" style="display: none;">
    <div class="modal-content large">
        <div class="modal-header">
            <h3 id="modalTitle">新建因子组合</h3>
            <button class="modal-close" onclick="closePortfolioModal()">&times;</button>
        </div>
        <div class="modal-body">
            <form id="portfolioForm">
                <input type="hidden" name="config_id" id="configId">

                <div class="form-row">
                    <div class="form-group">
                        <label>配置名称 *</label>
                        <input type="text" name="name" class="form-input" required>
                    </div>
                    <div class="form-group">
                        <label>股票池</label>
                        <select name="universe" class="form-select">
                            {% for key, label in universe_choices.items %}
                            <option value="{{ key }}">{{ label }}</option>
                            {% endfor %}
                        </select>
                    </div>
                </div>

                <div class="form-group">
                    <label>描述</label>
                    <textarea name="description" class="form-textarea" rows="2"></textarea>
                </div>

                <div class="form-section">
                    <h4>因子权重设置</h4>
                    <div id="factorWeightsContainer" class="factor-weights-input">
                        {% for factor in factor_definitions %}
                        <div class="weight-input-row">
                            <label class="factor-label">{{ factor.name }} ({{ factor.code }})</label>
                            <div class="weight-input-group">
                                <input type="number" type="number" step="0.01" min="-1" max="1"
                                       name="weight_{{ factor.code }}" class="form-input small"
                                       placeholder="权重" value="0">
                                <span class="weight-hint">范围: -1 到 1</span>
                            </div>
                        </div>
                        {% endfor %}
                    </div>
                    <div class="form-hint">提示: 正值表示做多该因子，负值表示做空，0表示不使用</div>
                </div>

                <div class="form-row">
                    <div class="form-group">
                        <label>选股数量</label>
                        <input type="number" name="top_n" class="form-input" value="30" min="1" max="500">
                    </div>
                    <div class="form-group">
                        <label>调仓频率</label>
                        <select name="rebalance_frequency" class="form-select">
                            {% for key, label in rebalance_choices.items %}
                            <option value="{{ key }}">{{ label }}</option>
                            {% endfor %}
                        </select>
                    </div>
                </div>

                <div class="form-row">
                    <div class="form-group">
                        <label>权重方式</label>
                        <select name="weight_method" class="form-select">
                            {% for key, label in weight_method_choices.items %}
                            <option value="{{ key }}">{{ label }}</option>
                            {% endfor %}
                        </select>
                    </div>
                </div>

                <div class="form-section">
                    <h4>筛选条件 (可选)</h4>
                    <div class="form-row">
                        <div class="form-group">
                            <label>最小市值 (亿)</label>
                            <input type="number" name="min_market_cap" class="form-input" step="0.01" min="0">
                        </div>
                        <div class="form-group">
                            <label>最大市值 (亿)</label>
                            <input type="number" name="max_market_cap" class="form-input" step="0.01" min="0">
                        </div>
                    </div>
                    <div class="form-row">
                        <div class="form-group">
                            <label>最大PE</label>
                            <input type="number" name="max_pe" class="form-input" step="0.01" min="0">
                        </div>
                        <div class="form-group">
                            <label>最大PB</label>
                            <input type="number" name="max_pb" class="form-input" step="0.01" min="0">
                        </div>
                    </div>
                    <div class="form-row">
                        <div class="form-group">
                            <label>最大资产负债率 (%)</label>
                            <input type="number" name="max_debt_ratio" class="form-input" step="0.1" min="0" max="100">
                        </div>
                    </div>
                </div>

                <div class="form-actions">
                    <button type="submit" class="btn-modal primary">保存配置</button>
                    <button type="button" class="btn-modal secondary" onclick="closePortfolioModal()">取消</button>
                </div>
            </form>
        </div>
    </div>
</div>

<script>
// URL configuration
const API_URLS = {
    factorPortfolios: "{% url 'factor:portfolios' %}",
    factorCreateConfig: "{% url 'factor:create_config' %}",
    factorConfigAction: (id) => `{% url 'factor:config_action' 0 %}`.replace('0', id),
    factorConfigList: "{% url 'api_factor:factor-config-list' %}",
    factorConfigDetail: (id) => `{% url 'api_factor:factor-config-detail' 0 %}`.replace('0', id),
};

let filterDebounceTimer;

function reloadPortfoliosPage() {
    const url = new URL(API_URLS.factorPortfolios, window.location.origin);
    const current = new URL(window.location.href);
    current.searchParams.forEach((value, key) => {
        if (key !== '_refresh') {
            url.searchParams.set(key, value);
        }
    });
    url.searchParams.set('_refresh', String(Date.now()));
    window.location.href = url.toString();
}

function buildJsonHeaders(extra = {}) {
    return {
        'Content-Type': 'application/json',
        'X-CSRFToken': window.csrfToken || '',
        ...extra,
    };
}

async function readJsonResponse(response) {
    const contentType = response.headers.get('Content-Type') || '';
    if (contentType.includes('application/json')) {
        return response.json();
    }
    return { error: await response.text() };
}

function resetPortfolioForm() {
    document.getElementById('configId').value = '';
    document.getElementById('portfolioForm').reset();
    document.querySelectorAll('#factorWeightsContainer input[name^="weight_"]').forEach(input => {
        input.value = '0';
    });
}

function fillPortfolioForm(config) {
    document.getElementById('configId').value = config.id;
    const form = document.getElementById('portfolioForm');
    form.elements.name.value = config.name || '';
    form.elements.description.value = config.description || '';
    form.elements.universe.value = config.universe || form.elements.universe.value;
    form.elements.top_n.value = config.top_n || 30;
    form.elements.rebalance_frequency.value = config.rebalance_frequency || form.elements.rebalance_frequency.value;
    form.elements.weight_method.value = config.weight_method || form.elements.weight_method.value;
    form.elements.min_market_cap.value = config.min_market_cap ?? '';
    form.elements.max_market_cap.value = config.max_market_cap ?? '';
    form.elements.max_pe.value = config.max_pe ?? '';
    form.elements.max_pb.value = config.max_pb ?? '';
    form.elements.max_debt_ratio.value = config.max_debt_ratio ?? '';

    const weights = config.factor_weights || {};
    document.querySelectorAll('#factorWeightsContainer input[name^="weight_"]').forEach(input => {
        const factorCode = input.name.replace('weight_', '');
        input.value = weights[factorCode] ?? 0;
    });
}

function debounceFilter() {
    clearTimeout(filterDebounceTimer);
    filterDebounceTimer = setTimeout(applyFilters, 300);
}

function applyFilters() {
    const active = document.getElementById('activeFilter').value;
    const search = document.getElementById('searchInput').value;

    const params = new URLSearchParams();
    if (active) params.append('is_active', active);
    if (search) params.append('search', search);

    window.location.href = `${API_URLS.factorPortfolios}?${params.toString()}`;
}

function refreshPortfolios() {
    reloadPortfoliosPage();
}

function ensurePortfolioEmptyState() {
    const list = document.querySelector('.portfolio-list');
    const cards = list ? list.querySelectorAll('.portfolio-card') : [];
    let emptyState = document.querySelector('.empty-state');

    if (cards.length === 0 && !emptyState && list) {
        emptyState = document.createElement('div');
        emptyState.className = 'empty-state';
        emptyState.innerHTML = '<div style="font-size: 48px; margin-bottom: 16px;">📊</div><div>暂无组合配置</div>';
        list.insertAdjacentElement('afterend', emptyState);
    }

    if (cards.length > 0 && emptyState) {
        emptyState.remove();
    }
}

function showCreateModal() {
    document.getElementById('modalTitle').textContent = '新建因子组合';
    resetPortfolioForm();
    document.querySelector('#portfolioForm .btn-modal.primary').textContent = '保存配置';
    document.getElementById('portfolioModal').classList.add('is-open');
}

function viewPortfolio(id) {
    window.location.href = `{% url 'factor:calculate' %}?config_id=${id}`;
}

async function editPortfolio(id) {
    try {
        const res = await fetch(API_URLS.factorConfigDetail(id));
        const data = await readJsonResponse(res);
        if (!res.ok) {
            throw new Error(data.detail || data.error || '加载配置失败');
        }

        document.getElementById('modalTitle').textContent = '编辑因子组合';
        document.querySelector('#portfolioForm .btn-modal.primary').textContent = '保存修改';
        fillPortfolioForm(data);
        document.getElementById('portfolioModal').classList.add('is-open');
    } catch (e) {
        showToast('加载配置失败: ' + e.message, 'error');
    }
}

async function togglePortfolio(id) {
    const config = document.querySelector(`[data-id="${id}"]`);
    const isActive = config && !config.classList.contains('inactive');

    if (!await window.uiConfirm(`确认${isActive ? '禁用' : '启用'}该组合配置？`, { title: '切换状态', icon: 'question' })) return;

    const formData = new FormData();
    formData.append('action', isActive ? 'deactivate' : 'activate');

    try {
        const data = await window.fetchJsonOrThrow(API_URLS.factorConfigAction(id), {
            method: 'POST',
            body: formData,
            headers: {
                'X-CSRFToken': window.csrfToken || ''
            }
        });

        if (data.success) {
            showToast(data.message, 'success');
            reloadPortfoliosPage();
        } else {
            showToast('操作失败: ' + data.error, 'error');
        }
    } catch (e) {
        showToast('网络错误: ' + e.message, 'error');
    }
}

async function generatePortfolio(id) {
    if (!await window.uiConfirm('确认生成该因子组合？', { title: '生成组合', icon: 'question' })) return;

    const formData = new FormData();
    formData.append('action', 'generate');

    try {
        const data = await window.fetchJsonOrThrow(API_URLS.factorConfigAction(id), {
            method: 'POST',
            body: formData,
            headers: {
                'X-CSRFToken': window.csrfToken || ''
            }
        });

        if (data.success) {
            showToast(data.message, 'success');
            reloadPortfoliosPage();
        } else {
            showToast('生成失败: ' + data.error, 'error');
        }
    } catch (e) {
        showToast('网络错误: ' + e.message, 'error');
    }
}

async function deletePortfolio(id) {
    if (!await window.uiConfirm('确认删除该组合配置？此操作不可恢复。', { title: '删除组合', icon: 'warning' })) return;

    try {
        const data = await window.fetchJsonOrThrow(API_URLS.factorConfigAction(id), {
            method: 'DELETE',
            headers: {
                'X-CSRFToken': window.csrfToken || ''
            }
        });

        if (data.success) {
            showToast(data.message, 'success');
            document.querySelector(`[data-id="${id}"]`)?.remove();
            ensurePortfolioEmptyState();
        } else {
            showToast('删除失败: ' + data.error, 'error');
        }
    } catch (e) {
        showToast('网络错误: ' + e.message, 'error');
    }
}

function closePortfolioModal() {
    document.getElementById('portfolioModal').classList.remove('is-open');
    document.getElementById('portfolioModal').style.display = 'none';
}

closePortfolioModal();
window.addEventListener('pageshow', closePortfolioModal);

// Form submission
document.getElementById('portfolioForm').addEventListener('submit', async function(e) {
    e.preventDefault();

    const formData = new FormData(this);
    const configId = document.getElementById('configId').value;

    // Collect factor weights
    const factorWeights = {};
    document.querySelectorAll('#factorWeightsContainer input[name^="weight_"]').forEach(input => {
        const factorCode = input.name.replace('weight_', '');
        const weight = parseFloat(input.value) || 0;
        if (weight !== 0) {
            factorWeights[factorCode] = weight;
        }
    });

    const payload = {
        name: (formData.get('name') || '').trim(),
        description: (formData.get('description') || '').trim(),
        universe: formData.get('universe'),
        top_n: parseInt(formData.get('top_n') || '30', 10),
        rebalance_frequency: formData.get('rebalance_frequency'),
        weight_method: formData.get('weight_method'),
        factor_weights: factorWeights,
        min_market_cap: formData.get('min_market_cap') ? parseFloat(formData.get('min_market_cap')) : null,
        max_market_cap: formData.get('max_market_cap') ? parseFloat(formData.get('max_market_cap')) : null,
        max_pe: formData.get('max_pe') ? parseFloat(formData.get('max_pe')) : null,
        max_pb: formData.get('max_pb') ? parseFloat(formData.get('max_pb')) : null,
        max_debt_ratio: formData.get('max_debt_ratio') ? parseFloat(formData.get('max_debt_ratio')) : null,
    };

    try {
        const res = await fetch(configId ? API_URLS.factorConfigDetail(configId) : API_URLS.factorConfigList, {
            method: configId ? 'PATCH' : 'POST',
            headers: buildJsonHeaders(),
            body: JSON.stringify(payload)
        });
        const data = await readJsonResponse(res);

        if (res.ok) {
            showToast(configId ? '配置已更新' : '配置已创建', 'success');
            closePortfolioModal();
            reloadPortfoliosPage();
        } else {
            const errorText = data.detail || data.error || Object.values(data).flat().join(' ') || '保存失败';
            showToast((configId ? '更新失败: ' : '创建失败: ') + errorText, 'error');
        }
    } catch (e) {
        showToast((configId ? '更新失败: ' : '创建失败: ') + e.message, 'error');
    }
});

// Close modal on outside click
document.getElementById('portfolioModal').addEventListener('click', function(e) {
    if (e.target === this) closePortfolioModal();
});
</script>
{% endblock %}