{% extends "base.html" %}

{% block title %}{{ student.name }} - 学员详情 - 钢琴练习方案系统{% endblock %}

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-4">
    <h4><i class="bi bi-person"></i> 学员详情</h4>
    <div>
        <a href="/students" class="btn btn-outline-secondary">
            <i class="bi bi-arrow-left"></i> 返回列表
        </a>
    </div>
</div>

<div class="row">
    <div class="col-md-4">
        <div class="card mb-4">
            <div class="card-body text-center">
                <div class="avatar mb-3">
                    <i class="bi bi-person-circle" style="font-size: 60px; color: #6c757d;"></i>
                </div>
                <h5 id="detailName">{{ student.name }}</h5>
                <p class="text-muted" id="detailWechatNickname">{{ student.wechat_nickname or '未填写' }}</p>
                <p class="text-muted" id="detailPhone">{{ student.phone or '未填写' }}</p>
                <p class="small">
                    <span class="badge bg-info" id="detailPracticeTime">{{ student.practice_time or '30分钟' }}</span>
                </p>
                <p class="small" id="detailClass">
                    {% if student.class_obj %}
                        <span class="badge bg-secondary">{{ student.class_obj.name }}</span>
                    {% else %}
                        <span class="text-muted">未分配班级</span>
                    {% endif %}
                </p>
                <p class="small text-muted" id="detailNotes">{{ student.notes or '无备注' }}</p>
                <button type="button" class="btn btn-sm btn-outline-primary" onclick="showEditStudentModal()">
                    <i class="bi bi-pencil"></i> 编辑
                </button>
                <button type="button" class="btn btn-sm btn-outline-danger" onclick="deleteStudent()">
                    <i class="bi bi-trash"></i> 删除
                </button>
            </div>
        </div>
    </div>

    <div class="col-md-8">
        <div class="card mb-4">
            <div class="card-header d-flex justify-content-between align-items-center">
                <h6 class="mb-0"><i class="bi bi-list-check"></i> 问题记录</h6>
                <button class="btn btn-sm btn-primary" onclick="showAddProblemModal()">
                    <i class="bi bi-plus"></i> 添加问题
                </button>
            </div>
            <div class="card-body" id="problemList">
                <p class="text-muted">加载中...</p>
            </div>
        </div>

        <div class="card">
            <div class="card-header d-flex justify-content-between align-items-center">
                <h6 class="mb-0"><i class="bi bi-clipboard-check"></i> 练习方案</h6>
                <button class="btn btn-sm btn-primary" onclick="generatePlan()">
                    <i class="bi bi-plus"></i> 生成方案
                </button>
            </div>
            <div class="card-body" id="planList">
                <p class="text-muted">加载中...</p>
            </div>
        </div>
    </div>
</div>

<!-- 编辑学员 Modal -->
<div class="modal fade" id="editStudentModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">编辑学员</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <input type="hidden" id="editStudentId" value="{{ student.id }}">
                <div class="mb-3">
                    <label class="form-label">姓名 *</label>
                    <input type="text" class="form-control" id="editStudentName" required>
                </div>
                <div class="mb-3">
                    <label class="form-label">手机号</label>
                    <input type="text" class="form-control" id="editStudentPhone">
                </div>
                <div class="mb-3">
                    <label class="form-label">微信昵称</label>
                    <input type="text" class="form-control" id="editStudentWechat">
                </div>
                <div class="mb-3">
                    <label class="form-label">每日练习时间</label>
                    <select class="form-select" id="editStudentPracticeTime">
                        <option value="15分钟">15分钟</option>
                        <option value="30分钟">30分钟</option>
                        <option value="45分钟">45分钟</option>
                        <option value="60分钟">60分钟</option>
                        <option value="90分钟">90分钟</option>
                        <option value="120分钟">120分钟</option>
                        <option value="150分钟以上">150分钟以上</option>
                    </select>
                </div>
                <div class="mb-3">
                    <label class="form-label">备注</label>
                    <textarea class="form-control" id="editStudentNotes" rows="2"></textarea>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
                <button type="button" class="btn btn-primary" onclick="saveStudentEdit()">保存</button>
            </div>
        </div>
    </div>
</div>

<!-- 添加问题 Modal -->
<div class="modal fade" id="addProblemModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">添加问题</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <div class="mb-3">
                    <label class="form-label">问题 *</label>
                    <select class="form-select" id="addProblemSelect" required>
                        <option value="">选择问题...</option>
                    </select>
                </div>
                <div class="mb-3">
                    <label class="form-label">严重程度 *</label>
                    <select class="form-select" id="addProblemSeverity" required>
                        <option value="轻微">轻微</option>
                        <option value="中等" selected>中等</option>
                        <option value="严重">严重</option>
                    </select>
                </div>
                <div class="mb-3">
                    <label class="form-label">级别 *</label>
                    <select class="form-select" id="addProblemLevel" required>
                        <option value="启蒙">启蒙</option>
                        <option value="入门" selected>入门</option>
                        <option value="进阶">进阶</option>
                        <option value="熟练">熟练</option>
                        <option value="精通">精通</option>
                    </select>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
                <button type="button" class="btn btn-primary" onclick="saveAddProblem()">添加</button>
            </div>
        </div>
    </div>
</div>

<!-- 编辑问题 Modal -->
<div class="modal fade" id="editProblemModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">编辑问题</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <input type="hidden" id="editProblemId">
                <div class="mb-3">
                    <label class="form-label">问题</label>
                    <input type="text" class="form-control" id="editProblemName" readonly>
                </div>
                <div class="mb-3">
                    <label class="form-label">严重程度 *</label>
                    <select class="form-select" id="editProblemSeverity" required>
                        <option value="轻微">轻微</option>
                        <option value="中等">中等</option>
                        <option value="严重">严重</option>
                    </select>
                </div>
                <div class="mb-3">
                    <label class="form-label">级别 *</label>
                    <select class="form-select" id="editProblemLevel" required>
                        <option value="启蒙">启蒙</option>
                        <option value="入门">入门</option>
                        <option value="进阶">进阶</option>
                        <option value="熟练">熟练</option>
                        <option value="精通">精通</option>
                    </select>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
                <button type="button" class="btn btn-primary" onclick="saveProblemEdit()">保存</button>
            </div>
        </div>
    </div>
</div>

<!-- 生成方案 Modal -->
<div class="modal fade" id="generatePlanModal" tabindex="-1" data-bs-backdrop="static">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">生成练习方案</h5>
            </div>
            <div class="modal-body">
                <div class="mb-3">
                    <label class="form-label">学员：{{ student.name }}</label>
                </div>
                <div class="mb-3">
                    <div class="form-check">
                        <input class="form-check-input" type="checkbox" id="useAiReport" checked>
                        <label class="form-check-label" for="useAiReport">
                            生成AI个性化报告（需要配置API）
                        </label>
                    </div>
                </div>
                <div class="mb-3">
                    <div class="progress" style="height: 25px;">
                        <div id="progressBar" class="progress-bar progress-bar-striped progress-bar-animated"
                             role="progressbar" style="width: 0%">0%</div>
                    </div>
                </div>
                <div class="mb-3">
                    <strong id="progressText">准备中...</strong>
                </div>
                <div id="progressLog" class="bg-light p-3 rounded" style="height: 200px; overflow-y: auto; font-family: monospace;">
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
                <button type="button" class="btn btn-primary" id="startGenerateBtn" onclick="startGeneratePlan()">开始生成</button>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
const currentStudentId = {{ student.id }};
const studentName = "{{ student.name }}";
let problemModal, editProblemModal, generateModal, editStudentModal;

document.addEventListener('DOMContentLoaded', function() {
    problemModal = new bootstrap.Modal(document.getElementById('addProblemModal'));
    editProblemModal = new bootstrap.Modal(document.getElementById('editProblemModal'));
    generateModal = new bootstrap.Modal(document.getElementById('generatePlanModal'));
    editStudentModal = new bootstrap.Modal(document.getElementById('editStudentModal'));

    // 填充编辑学员表单初始值
    document.getElementById('editStudentName').value = document.getElementById('detailName').textContent;
    document.getElementById('editStudentPhone').value = document.getElementById('detailPhone').textContent === '未填写' ? '' : document.getElementById('detailPhone').textContent;
    document.getElementById('editStudentWechat').value = document.getElementById('detailWechatNickname').textContent === '未填写' ? '' : document.getElementById('detailWechatNickname').textContent;
    document.getElementById('editStudentPracticeTime').value = document.getElementById('detailPracticeTime').textContent;
    document.getElementById('editStudentNotes').value = document.getElementById('detailNotes').textContent === '无备注' ? '' : document.getElementById('detailNotes').textContent;

    loadProblems();
    loadPlans();
    loadProblemOptions();
});

async function loadProblemOptions() {
    try {
        const resp = await fetch('/api/problems');
        const problems = await resp.json();
        const select = document.getElementById('addProblemSelect');
        select.innerHTML = '<option value="">选择问题...</option>';
        problems.forEach(p => {
            select.innerHTML += `<option value="${p.id}">${p.no} - ${p.name}</option>`;
        });
    } catch (e) {
        console.error('加载问题列表失败', e);
    }
}

async function loadProblems() {
    try {
        const resp = await fetch(`/api/students/${currentStudentId}/problems`);
        const problems = await resp.json();
        renderProblemList(problems);
    } catch (e) {
        document.getElementById('problemList').innerHTML = '<p class="text-danger">加载失败</p>';
    }
}

function renderProblemList(problems) {
    const container = document.getElementById('problemList');
    if (problems.length === 0) {
        container.innerHTML = '<p class="text-muted">暂无问题记录</p>';
        return;
    }
    container.innerHTML = problems.map(p => `
        <div class="d-flex justify-content-between align-items-center mb-2 p-2 border rounded">
            <div>
                <strong>${p.problem_name}</strong>
                <span class="badge bg-${p.severity === '严重' ? 'danger' : p.severity === '中等' ? 'warning' : 'info'} ms-2">${p.severity}</span>
                <span class="badge bg-secondary ms-1">${p.level}</span>
            </div>
            <div>
                <button class="btn btn-sm btn-outline-primary me-1" onclick="showEditProblemModal(${p.id}, '${p.problem_name}', '${p.severity}', '${p.level}')">
                    <i class="bi bi-pencil"></i>
                </button>
                <button class="btn btn-sm btn-outline-danger" onclick="deleteProblem(${p.id})">
                    <i class="bi bi-trash"></i>
                </button>
            </div>
        </div>
    `).join('');
}

async function loadPlans() {
    try {
        const resp = await fetch(`/api/students/${currentStudentId}/plans`);
        const plans = await resp.json();
        renderPlanList(plans);
    } catch (e) {
        document.getElementById('planList').innerHTML = '<p class="text-danger">加载失败</p>';
    }
}

function renderPlanList(plans) {
    const container = document.getElementById('planList');
    if (plans.length === 0) {
        container.innerHTML = '<p class="text-muted">暂无练习方案</p>';
        return;
    }
    container.innerHTML = plans.map(p => `
        <div class="d-flex align-items-center mb-2 p-2 border rounded">
            <a href="/plan/${p.id}" class="btn btn-sm btn-outline-primary me-2">查看</a>
            <span class="flex-grow-1">${p.created_at ? p.created_at.substring(0, 10) : '未知'}</span>
            <button class="btn btn-sm btn-outline-danger" onclick="deletePlan(${p.id})">
                <i class="bi bi-trash"></i>
            </button>
        </div>
    `).join('');
}

function showEditStudentModal() {
    editStudentModal.show();
}

async function saveStudentEdit() {
    const data = {
        name: document.getElementById('editStudentName').value,
        phone: document.getElementById('editStudentPhone').value,
        wechat_nickname: document.getElementById('editStudentWechat').value,
        practice_time: document.getElementById('editStudentPracticeTime').value,
        notes: document.getElementById('editStudentNotes').value,
    };

    try {
        const resp = await fetch(`/api/students/${currentStudentId}`, {
            method: 'PUT',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify(data)
        });
        if (resp.ok) {
            editStudentModal.hide();
            location.reload();
        } else {
            alert('保存失败');
        }
    } catch (e) {
        alert('保存失败: ' + e.message);
    }
}

function deleteStudent() {
    if (!confirm('确定删除该学员？所有问题和方案都将被删除！')) return;
    fetch(`/api/students/${currentStudentId}`, {method: 'DELETE'})
        .then(r => r.json())
        .then(() => window.location.href = '/students');
}

function showAddProblemModal() {
    document.getElementById('addProblemSelect').value = '';
    document.getElementById('addProblemSeverity').value = '中等';
    document.getElementById('addProblemLevel').value = '入门';
    problemModal.show();
}

async function saveAddProblem() {
    const problemId = document.getElementById('addProblemSelect').value;
    const severity = document.getElementById('addProblemSeverity').value;
    const level = document.getElementById('addProblemLevel').value;

    if (!problemId) {
        alert('请选择问题');
        return;
    }

    try {
        const resp = await fetch(`/api/students/${currentStudentId}/problems`, {
            method: 'POST',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify({
                problems: [{problem_id: parseInt(problemId), severity, level}]
            })
        });
        if (resp.ok) {
            problemModal.hide();
            loadProblems();
        } else {
            const err = await resp.json();
            alert('添加失败: ' + (err.error || '未知错误'));
        }
    } catch (e) {
        alert('添加失败: ' + e.message);
    }
}

function showEditProblemModal(id, name, severity, level) {
    document.getElementById('editProblemId').value = id;
    document.getElementById('editProblemName').value = name;
    document.getElementById('editProblemSeverity').value = severity;
    document.getElementById('editProblemLevel').value = level;
    editProblemModal.show();
}

async function saveProblemEdit() {
    const id = document.getElementById('editProblemId').value;
    const severity = document.getElementById('editProblemSeverity').value;
    const level = document.getElementById('editProblemLevel').value;

    // 获取当前问题列表找到对应的 problem_db_id
    const resp = await fetch(`/api/students/${currentStudentId}/problems`);
    const problems = await resp.json();
    const problem = problems.find(p => p.id === parseInt(id));
    if (!problem) {
        alert('问题不存在');
        return;
    }

    // 调用更新 API
    try {
        const updateResp = await fetch(`/api/students/${currentStudentId}/problems/${id}`, {
            method: 'PUT',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify({severity, level})
        });
        if (updateResp.ok) {
            editProblemModal.hide();
            loadProblems();
        } else {
            alert('更新失败');
        }
    } catch (e) {
        alert('更新失败: ' + e.message);
    }
}

async function deleteProblem(id) {
    if (!confirm('确定删除该问题？')) return;
    try {
        const resp = await fetch(`/api/students/${currentStudentId}/problems/${id}`, {
            method: 'DELETE'
        });
        if (resp.ok) {
            loadProblems();
        } else {
            alert('删除失败');
        }
    } catch (e) {
        alert('删除失败: ' + e.message);
    }
}

function generatePlan() {
    const progressBar = document.getElementById('progressBar');
    const progressText = document.getElementById('progressText');
    const progressLog = document.getElementById('progressLog');

    progressBar.style.width = '0%';
    progressBar.textContent = '0%';
    progressText.textContent = '准备中...';
    progressLog.innerHTML = '';
    generateModal.show();
}

async function startGeneratePlan() {
    const progressBar = document.getElementById('progressBar');
    const progressText = document.getElementById('progressText');
    const progressLog = document.getElementById('progressLog');
    const useAi = document.getElementById('useAiReport').checked;

    progressBar.style.width = '0%';
    progressText.textContent = '准备中...';
    progressLog.innerHTML = '';

    function addLog(msg, isError = false) {
        const time = new Date().toLocaleTimeString();
        progressLog.innerHTML += `<div class="${isError ? 'text-danger' : 'text-muted'} small">${time} ${msg}</div>`;
        progressLog.scrollTop = progressLog.scrollHeight;
    }

    try {
        const response = await fetch('/api/generate-plan', {
            method: 'POST',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify({student_id: currentStudentId, use_ai: useAi})
        });

        const reader = response.body.getReader();
        const decoder = new TextDecoder();

        while (true) {
            const {done, value} = await reader.read();
            if (done) break;

            const text = decoder.decode(value);
            const lines = text.split('\n');

            for (const line of lines) {
                if (line.startsWith('data: ')) {
                    try {
                        const data = JSON.parse(line.slice(6));

                        progressBar.style.width = data.progress + '%';
                        progressBar.textContent = data.progress + '%';
                        progressText.textContent = data.message;

                        let logMsg = data.message;
                        if (data.detail) {
                            if (data.step === 'ai_prompt') {
                                logMsg = '【AI提示词】\n' + data.detail;
                                addLog(logMsg);
                                continue;
                            } else {
                                logMsg += '\n  └ ' + data.detail.replace(/\n/g, '\n  └ ');
                            }
                        }
                        addLog(logMsg);

                        if (data.step === 'complete') {
                            setTimeout(() => {
                                generateModal.hide();
                                alert('方案生成成功！');
                                loadPlans();
                            }, 500);
                        }

                        if (data.error) {
                            addLog(data.error, true);
                        }
                    } catch (e) {}
                }
            }
        }
    } catch (err) {
        addLog('请求失败：' + err.message, true);
        progressText.textContent = '生成失败';
    }
}

async function deletePlan(id) {
    if (!confirm('确定删除该方案？')) return;
    try {
        const resp = await fetch(`/api/plans/${id}`, {method: 'DELETE'});
        if (resp.ok) {
            loadPlans();
        } else {
            alert('删除失败');
        }
    } catch (e) {
        alert('删除失败: ' + e.message);
    }
}

function showToast(message, type) {
    const toast = document.createElement('div');
    toast.className = 'toast-message alert alert-' + (type === 'success' ? 'success' : 'danger');
    toast.style.cssText = 'position:fixed;top:20px;right:20px;z-index:9999;min-width:200px;';
    toast.textContent = message;
    document.body.appendChild(toast);
    setTimeout(() => toast.remove(), 3000);
}
</script>
{% endblock %}