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Upload index.html
Browse files- frontend /index.html +491 -0
frontend /index.html
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| 1 |
+
<!DOCTYPE html>
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| 2 |
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<html lang="id">
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| 3 |
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<head>
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| 4 |
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<meta charset="UTF-8" />
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| 5 |
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<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
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| 6 |
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<title>Financial Risk & Forecast</title>
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| 7 |
+
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
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| 8 |
+
<style>
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| 9 |
+
:root {
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| 10 |
+
--bg-primary: #f9fafb;
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| 11 |
+
--bg-secondary: #ffffff;
|
| 12 |
+
--text-primary: #1f2937;
|
| 13 |
+
--text-secondary: #6b7280;
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| 14 |
+
--accent-blue: #3b82f6;
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| 15 |
+
--accent-blue-dark: #1d4ed8;
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| 16 |
+
--accent-purple: #8b5cf6;
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| 17 |
+
--accent-red: #ef4444;
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| 18 |
+
--accent-green: #10b981;
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| 19 |
+
--shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
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| 20 |
+
--border-color: #e5e7eb;
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| 21 |
+
--card-bg: #ffffff;
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| 22 |
+
--navbar-bg: #ffffff;
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| 23 |
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}
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| 24 |
+
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| 25 |
+
.dark-mode {
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| 26 |
+
--bg-primary: #111827;
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| 27 |
+
--bg-secondary: #1f2937;
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| 28 |
+
--text-primary: #f9fafb;
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| 29 |
+
--text-secondary: #d1d5db;
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| 30 |
+
--border-color: #374151;
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| 31 |
+
--card-bg: #1f2937;
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| 32 |
+
--navbar-bg: #1f2937;
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| 33 |
+
}
|
| 34 |
+
|
| 35 |
+
* { margin: 0; padding: 0; box-sizing: border-box; }
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| 36 |
+
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(--bg-primary); color: var(--text-primary); line-height: 1.6; transition: background-color 0.3s, color 0.3s; }
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| 37 |
+
header { background-color: var(--navbar-bg); box-shadow: var(--shadow); position: sticky; top: 0; z-index: 100; }
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| 38 |
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.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
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| 39 |
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.navbar { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 0; }
|
| 40 |
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.logo { display: flex; align-items: center; gap: 10px; font-size: 1.5rem; font-weight: bold; color: var(--accent-blue); }
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| 41 |
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.nav-links { display: flex; gap: 2rem; }
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| 42 |
+
.nav-links a { color: var(--text-secondary); text-decoration: none; font-weight: 500; transition: color 0.2s; cursor: pointer; }
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| 43 |
+
.nav-links a.active, .nav-links a:hover { color: var(--accent-blue); }
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| 44 |
+
.dark-mode-toggle { background: none; border: none; cursor: pointer; padding: 8px; border-radius: 50%; display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background-color: var(--bg-secondary); box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
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| 45 |
+
.page { min-height: calc(100vh - 180px); padding: 2rem 0; display: none; }
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| 46 |
+
.page.active { display: block; }
|
| 47 |
+
.hero { text-align: center; padding: 4rem 0; }
|
| 48 |
+
.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
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| 49 |
+
.hero p { font-size: 1.2rem; color: var(--text-secondary); max-width: 700px; margin: 0 auto 2rem; }
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| 50 |
+
.btn { display: inline-block; background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-dark)); color: white; padding: 12px 32px; border-radius: 9999px; font-weight: 600; text-decoration: none; box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3); transition: all 0.3s ease; border: none; cursor: pointer; }
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| 51 |
+
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 12px rgba(59, 130, 246, 0.4); }
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| 52 |
+
.card { background-color: var(--card-bg); border-radius: 12px; box-shadow: var(--shadow); padding: 1.5rem; margin-bottom: 1.5rem; border: 1px solid var(--border-color); }
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| 53 |
+
.form-group { margin-bottom: 1.5rem; }
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| 54 |
+
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--text-primary); }
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| 55 |
+
.form-control { width: 100%; padding: 12px; border: 1px solid var(--border-color); border-radius: 8px; font-size: 1rem; background-color: var(--bg-secondary); color: var(--text-primary); transition: border-color 0.3s; }
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| 56 |
+
.form-control:focus { outline: none; border-color: var(--accent-blue); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2); }
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| 57 |
+
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
|
| 58 |
+
.results-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }
|
| 59 |
+
.result-card { text-align: center; padding: 1.5rem; border-radius: 12px; background: var(--card-bg); border: 1px solid var(--border-color); }
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| 60 |
+
.result-value { font-size: 2rem; font-weight: bold; margin: 0.5rem 0; }
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| 61 |
+
.result-label { color: var(--text-secondary); font-size: 1.1rem; }
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| 62 |
+
.return-value { color: var(--accent-green); }
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| 63 |
+
.volatility-value { color: var(--accent-red); }
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| 64 |
+
.sharpe-value { color: var(--accent-blue); }
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| 65 |
+
.chart-container { height: 350px; position: relative; }
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| 66 |
+
.footer { background-color: var(--navbar-bg); padding: 2rem 0; margin-top: 4rem; }
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| 67 |
+
.footer p { text-align: center; color: var(--text-secondary); font-size: 0.9rem; }
|
| 68 |
+
.loading { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 50vh; gap: 1rem; }
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| 69 |
+
.spinner { width: 50px; height: 50px; border: 5px solid #f3f3f3; border-top: 5px solid var(--accent-blue); border-radius: 50%; animation: spin 1s linear infinite; }
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| 70 |
+
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
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| 71 |
+
.disclaimer { background-color: #fef3c7; border-left: 4px solid #f59e0b; padding: 1rem; border-radius: 0 8px 8px 0; margin: 1.5rem 0; }
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| 72 |
+
.disclaimer p { color: #92400e; font-size: 0.95rem; font-weight: 500; }
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| 73 |
+
.dark-mode .disclaimer { background-color: #373022; border-color: #f59e0b; }
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| 74 |
+
.dark-mode .disclaimer p { color: #fef3c7; }
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| 75 |
+
.back-link { display: inline-block; margin-top: 1rem; color: var(--accent-blue); text-decoration: none; font-weight: 500; cursor: pointer; }
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| 76 |
+
.back-link:hover { text-decoration: underline; }
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| 77 |
+
.hidden { display: none !important; }
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| 78 |
+
.btn-secondary { background-color: #e5e7eb; color: #4b5563; padding: 8px 16px; border: none; border-radius: 8px; font-weight: 500; cursor: pointer; }
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| 79 |
+
.btn-secondary:hover { background-color: #d1d5db; }
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| 80 |
+
</style>
|
| 81 |
+
</head>
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| 82 |
+
<body>
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| 83 |
+
<header>
|
| 84 |
+
<div class="container">
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| 85 |
+
<nav class="navbar">
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| 86 |
+
<div class="logo">
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| 87 |
+
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
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| 88 |
+
<line x1="18" y1="20" x2="18" y2="10"></line><line x1="12" y1="20" x2="12" y2="4"></line><line x1="6" y1="20" x2="6" y2="14"></line>
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| 89 |
+
</svg>
|
| 90 |
+
RiskForecaster
|
| 91 |
+
</div>
|
| 92 |
+
<div class="nav-links">
|
| 93 |
+
<a class="nav-link active" data-page="home">Beranda</a>
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| 94 |
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<a class="nav-link" data-page="input">Input Data</a>
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| 95 |
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<a class="nav-link" data-page="about">Tentang</a>
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| 96 |
+
</div>
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| 97 |
+
<button class="dark-mode-toggle" id="darkModeToggle">
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| 98 |
+
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="sun-icon">
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| 99 |
+
<circle cx="12" cy="12" r="5"></circle><line x1="12" y1="1" x2="12" y2="3"></line><line x1="12" y1="21" x2="12" y2="23"></line><line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line><line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line><line x1="1" y1="12" x2="3" y2="12"></line><line x1="21" y1="12" x2="23" y2="12"></line><line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line><line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line>
|
| 100 |
+
</svg>
|
| 101 |
+
<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="moon-icon hidden">
|
| 102 |
+
<path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"></path>
|
| 103 |
+
</svg>
|
| 104 |
+
</button>
|
| 105 |
+
</nav>
|
| 106 |
+
</div>
|
| 107 |
+
</header>
|
| 108 |
+
|
| 109 |
+
<main class="container">
|
| 110 |
+
<section id="home" class="page active">
|
| 111 |
+
<div class="hero">
|
| 112 |
+
<h1>Portfolio Risk & Forecast</h1>
|
| 113 |
+
<p>Analisis risiko portofolio dan dapatkan prediksi harga menggunakan Machine Learning.</p>
|
| 114 |
+
<button class="btn" id="startBtn">Mulai Analisis</button>
|
| 115 |
+
</div>
|
| 116 |
+
</section>
|
| 117 |
+
|
| 118 |
+
<section id="input" class="page">
|
| 119 |
+
<div class="card">
|
| 120 |
+
<h2 style="font-size: 1.8rem; margin-bottom: 1.5rem; color: var(--text-primary);">Input Data Portofolio</h2>
|
| 121 |
+
|
| 122 |
+
<div class="form-group">
|
| 123 |
+
<label for="tickers">Ticker Saham (pisahkan dengan koma)</label>
|
| 124 |
+
<input type="text" id="tickers" class="form-control" placeholder="Contoh: BBCA.JK,AAPL,TSLA" value="BBCA.JK">
|
| 125 |
+
</div>
|
| 126 |
+
|
| 127 |
+
<div class="grid-2">
|
| 128 |
+
<div class="form-group">
|
| 129 |
+
<label for="start_date">Tanggal Mulai</label>
|
| 130 |
+
<input type="date" id="start_date" class="form-control" value="2022-01-01">
|
| 131 |
+
</div>
|
| 132 |
+
<div class="form-group">
|
| 133 |
+
<label for="end_date">Tanggal Selesai</label>
|
| 134 |
+
<input type="date" id="end_date" class="form-control">
|
| 135 |
+
</div>
|
| 136 |
+
</div>
|
| 137 |
+
<div id="error-message" class="hidden" style="color: var(--accent-red); text-align: center; margin-bottom: 1rem;"></div>
|
| 138 |
+
<button class="btn" id="calculateBtn">Hitung Risiko & Prediksi</button>
|
| 139 |
+
</div>
|
| 140 |
+
<a class="back-link" id="backHome">← Kembali ke Beranda</a>
|
| 141 |
+
</section>
|
| 142 |
+
|
| 143 |
+
<section id="results" class="page">
|
| 144 |
+
<div class="card" id="resultsContent">
|
| 145 |
+
<h2 style="font-size: 1.8rem; margin-bottom: 1.5rem; color: var(--text-primary); text-align: center;">Hasil Analisis Portofolio</h2>
|
| 146 |
+
<p id="portfolioInfo" style="text-align: center; color: var(--text-secondary); margin-bottom: 2rem;"></p>
|
| 147 |
+
|
| 148 |
+
<div class="results-grid">
|
| 149 |
+
<div class="result-card">
|
| 150 |
+
<div class="result-label">Expected Annual Return</div>
|
| 151 |
+
<div class="result-value return-value" id="returnValue">0%</div>
|
| 152 |
+
<div style="color: var(--text-secondary); font-size: 0.9rem;">Prediksi imbal hasil tahunan</div>
|
| 153 |
+
</div>
|
| 154 |
+
|
| 155 |
+
<div class="result-card">
|
| 156 |
+
<div class="result-label">Annual Volatility (Risk)</div>
|
| 157 |
+
<div class="result-value volatility-value" id="volatilityValue">0%</div>
|
| 158 |
+
<div style="color: var(--text-secondary); font-size: 0.9rem;">Tingkat risiko fluktuasi harga</div>
|
| 159 |
+
</div>
|
| 160 |
+
|
| 161 |
+
<div class="result-card">
|
| 162 |
+
<div class="result-label">Sharpe Ratio</div>
|
| 163 |
+
<div class="result-value sharpe-value" id="sharpeValue">0.00</div>
|
| 164 |
+
<div style="color: var(--text-secondary); font-size: 0.9rem;">Imbal hasil per unit risiko</div>
|
| 165 |
+
</div>
|
| 166 |
+
</div>
|
| 167 |
+
|
| 168 |
+
<div class="card">
|
| 169 |
+
<h3 style="margin-bottom: 1rem; color: var(--text-primary);" id="forecastTitle">Prediksi Harga Saham</h3>
|
| 170 |
+
<div class="chart-container">
|
| 171 |
+
<canvas id="forecastChart"></canvas>
|
| 172 |
+
</div>
|
| 173 |
+
</div>
|
| 174 |
+
|
| 175 |
+
<div style="text-align: center; margin-top: 2rem;">
|
| 176 |
+
<button class="btn btn-secondary" id="analyzeAgain">Analisis Portofolio Lain</button>
|
| 177 |
+
</div>
|
| 178 |
+
</div>
|
| 179 |
+
|
| 180 |
+
<div id="loading" class="loading hidden">
|
| 181 |
+
<div class="spinner"></div>
|
| 182 |
+
<p style="color: var(--text-secondary); font-size: 1.1rem;">Menghitung risiko & prediksi...</p>
|
| 183 |
+
<p style="color: var(--text-secondary);">Ini bisa memakan beberapa saat, harap tunggu.</p>
|
| 184 |
+
</div>
|
| 185 |
+
</section>
|
| 186 |
+
|
| 187 |
+
<section id="about" class="page">
|
| 188 |
+
</section>
|
| 189 |
+
</main>
|
| 190 |
+
|
| 191 |
+
<footer class="footer">
|
| 192 |
+
</footer>
|
| 193 |
+
|
| 194 |
+
<script>
|
| 195 |
+
document.addEventListener('DOMContentLoaded', () => {
|
| 196 |
+
// --- REVISI 3: Deklarasi elemen & logika dipindahkan ke dalam 'DOMContentLoaded' ---
|
| 197 |
+
const API_BASE_URL = 'https://psychic-goldfish-jvvvxjrwgp9hg56-8000.app.github.dev';
|
| 198 |
+
// DOM Elements
|
| 199 |
+
const pages = document.querySelectorAll('.page');
|
| 200 |
+
const navLinks = document.querySelectorAll('.nav-link');
|
| 201 |
+
const startBtn = document.getElementById('startBtn');
|
| 202 |
+
const backHome = document.getElementById('backHome');
|
| 203 |
+
const calculateBtn = document.getElementById('calculateBtn');
|
| 204 |
+
const analyzeAgain = document.getElementById('analyzeAgain');
|
| 205 |
+
const darkModeToggle = document.getElementById('darkModeToggle');
|
| 206 |
+
const sunIcon = document.querySelector('.sun-icon');
|
| 207 |
+
const moonIcon = document.querySelector('.moon-icon');
|
| 208 |
+
const resultsContent = document.getElementById('resultsContent');
|
| 209 |
+
const loading = document.getElementById('loading');
|
| 210 |
+
const errorMessage = document.getElementById('error-message');
|
| 211 |
+
|
| 212 |
+
// Form Input Elements
|
| 213 |
+
const tickersInput = document.getElementById('tickers');
|
| 214 |
+
const startDateInput = document.getElementById('start_date');
|
| 215 |
+
const endDateInput = document.getElementById('end_date');
|
| 216 |
+
|
| 217 |
+
// Result elements
|
| 218 |
+
const portfolioInfo = document.getElementById('portfolioInfo');
|
| 219 |
+
const returnValueEl = document.getElementById('returnValue');
|
| 220 |
+
const volatilityValueEl = document.getElementById('volatilityValue');
|
| 221 |
+
const sharpeValueEl = document.getElementById('sharpeValue');
|
| 222 |
+
const forecastTitleEl = document.getElementById('forecastTitle');
|
| 223 |
+
|
| 224 |
+
// Charts
|
| 225 |
+
let forecastChartInstance = null;
|
| 226 |
+
|
| 227 |
+
// GANTI DENGAN KODE INI
|
| 228 |
+
// Atur tanggal selesai secara manual ke tanggal valid di masa lalu untuk development
|
| 229 |
+
endDateInput.value = '2025-08-29';
|
| 230 |
+
console.log("Tanggal selesai diatur secara manual ke 2024-08-30 untuk menghindari data masa depan.");
|
| 231 |
+
|
| 232 |
+
// Dark Mode Toggle
|
| 233 |
+
darkModeToggle.addEventListener('click', () => {
|
| 234 |
+
document.body.classList.toggle('dark-mode');
|
| 235 |
+
sunIcon.classList.toggle('hidden');
|
| 236 |
+
moonIcon.classList.toggle('hidden');
|
| 237 |
+
localStorage.setItem('darkMode', document.body.classList.contains('dark-mode'));
|
| 238 |
+
// Re-render chart with correct colors if it exists
|
| 239 |
+
if (forecastChartInstance) {
|
| 240 |
+
forecastChartInstance.destroy();
|
| 241 |
+
// NOTE: Ideally, re-render chart with new colors. For simplicity, we just destroy it.
|
| 242 |
+
// A better implementation would be to store chart data and call a render function.
|
| 243 |
+
}
|
| 244 |
+
});
|
| 245 |
+
|
| 246 |
+
if (localStorage.getItem('darkMode') === 'true') {
|
| 247 |
+
document.body.classList.add('dark-mode');
|
| 248 |
+
sunIcon.classList.add('hidden');
|
| 249 |
+
moonIcon.classList.remove('hidden');
|
| 250 |
+
}
|
| 251 |
+
|
| 252 |
+
// Navigation
|
| 253 |
+
function navigateTo(pageId) {
|
| 254 |
+
pages.forEach(page => page.classList.remove('active'));
|
| 255 |
+
navLinks.forEach(link => link.classList.remove('active'));
|
| 256 |
+
document.getElementById(pageId).classList.add('active');
|
| 257 |
+
const activeLink = document.querySelector(`.nav-link[data-page="${pageId}"]`);
|
| 258 |
+
if (activeLink) activeLink.classList.add('active');
|
| 259 |
+
}
|
| 260 |
+
|
| 261 |
+
navLinks.forEach(link => {
|
| 262 |
+
link.addEventListener('click', (e) => {
|
| 263 |
+
e.preventDefault();
|
| 264 |
+
const pageId = link.getAttribute('data-page');
|
| 265 |
+
navigateTo(pageId);
|
| 266 |
+
});
|
| 267 |
+
});
|
| 268 |
+
|
| 269 |
+
startBtn.addEventListener('click', () => navigateTo('input'));
|
| 270 |
+
backHome.addEventListener('click', (e) => { e.preventDefault(); navigateTo('home'); });
|
| 271 |
+
analyzeAgain.addEventListener('click', () => navigateTo('input'));
|
| 272 |
+
|
| 273 |
+
// --- REVISI 4: Ganti logika kalkulasi dengan panggilan API ---
|
| 274 |
+
// GANTI SELURUH FUNGSI calculateBtn.addEventListener DENGAN VERSI FINAL INI
|
| 275 |
+
calculateBtn.addEventListener('click', async () => {
|
| 276 |
+
const tickers = tickersInput.value.trim();
|
| 277 |
+
if (!tickers) {
|
| 278 |
+
alert('Silakan masukkan minimal satu ticker saham.');
|
| 279 |
+
return;
|
| 280 |
+
}
|
| 281 |
+
|
| 282 |
+
const tickersArray = tickers.split(',').map(t => t.trim());
|
| 283 |
+
const requestBody = {
|
| 284 |
+
tickers: tickersArray,
|
| 285 |
+
start_date: startDateInput.value,
|
| 286 |
+
end_date: endDateInput.value
|
| 287 |
+
};
|
| 288 |
+
|
| 289 |
+
resultsContent.classList.add('hidden');
|
| 290 |
+
loading.classList.remove('hidden');
|
| 291 |
+
errorMessage.classList.add('hidden');
|
| 292 |
+
navigateTo('results');
|
| 293 |
+
|
| 294 |
+
console.log("Memulai proses... Menghitung Risiko...");
|
| 295 |
+
|
| 296 |
+
try {
|
| 297 |
+
// Langkah 1: Ambil data risiko terlebih dahulu
|
| 298 |
+
const riskData = await fetchRiskData(requestBody);
|
| 299 |
+
console.log("✅ Selesai menghitung risiko.");
|
| 300 |
+
|
| 301 |
+
// Jika riskData berisi error, hentikan proses
|
| 302 |
+
if (riskData.error) {
|
| 303 |
+
throw new Error(riskData.error);
|
| 304 |
+
}
|
| 305 |
+
|
| 306 |
+
// Langkah 2: Baru setelah risiko berhasil, ambil data prediksi
|
| 307 |
+
console.log("Sekarang mengambil data prediksi...");
|
| 308 |
+
const forecastData = await fetchForecastData({ ...requestBody, ticker: tickersArray[0] });
|
| 309 |
+
console.log("✅ Selesai mengambil data prediksi.");
|
| 310 |
+
|
| 311 |
+
// Jika forecastData berisi error, kita tetap bisa menampilkan risk, tapi beri peringatan
|
| 312 |
+
if (forecastData.error) {
|
| 313 |
+
// Tampilkan metrik risiko yang berhasil
|
| 314 |
+
updateRiskMetrics(riskData, tickers);
|
| 315 |
+
// Tampilkan pesan error di area chart
|
| 316 |
+
updateForecastChart({ error: forecastData.error }, tickersArray[0]);
|
| 317 |
+
} else {
|
| 318 |
+
// Jika semua berhasil, tampilkan semuanya
|
| 319 |
+
updateRiskMetrics(riskData, tickers);
|
| 320 |
+
updateForecastChart(forecastData, tickersArray[0]);
|
| 321 |
+
}
|
| 322 |
+
|
| 323 |
+
resultsContent.classList.remove('hidden');
|
| 324 |
+
|
| 325 |
+
} catch (error) {
|
| 326 |
+
console.error('API Error:', error);
|
| 327 |
+
errorMessage.textContent = `Error: ${error.message}`;
|
| 328 |
+
errorMessage.classList.remove('hidden');
|
| 329 |
+
navigateTo('input');
|
| 330 |
+
} finally {
|
| 331 |
+
console.log("Proses selesai, menyembunyikan loading spinner.");
|
| 332 |
+
loading.classList.add('hidden');
|
| 333 |
+
}
|
| 334 |
+
});
|
| 335 |
+
|
| 336 |
+
// --- REVISI 5: Buat fungsi-fungsi baru untuk fetch API dan update UI ---
|
| 337 |
+
|
| 338 |
+
async function fetchRiskData(body) {
|
| 339 |
+
const response = await fetch(`${API_BASE_URL}/calculate-risk`, {
|
| 340 |
+
method: 'POST',
|
| 341 |
+
headers: { 'Content-Type': 'application/json' },
|
| 342 |
+
body: JSON.stringify(body)
|
| 343 |
+
});
|
| 344 |
+
if (!response.ok) {
|
| 345 |
+
const errorData = await response.json();
|
| 346 |
+
throw new Error(errorData.detail || `Gagal mengambil data risiko.`);
|
| 347 |
+
}
|
| 348 |
+
return response.json();
|
| 349 |
+
}
|
| 350 |
+
|
| 351 |
+
async function fetchForecastData(body) {
|
| 352 |
+
const forecastBody = {
|
| 353 |
+
ticker: body.ticker,
|
| 354 |
+
start_date: body.start_date,
|
| 355 |
+
end_date: body.end_date,
|
| 356 |
+
forecast_horizon: 30
|
| 357 |
+
};
|
| 358 |
+
const response = await fetch(`${API_BASE_URL}/get-forecast`, {
|
| 359 |
+
method: 'POST',
|
| 360 |
+
headers: { 'Content-Type': 'application/json' },
|
| 361 |
+
body: JSON.stringify(forecastBody)
|
| 362 |
+
});
|
| 363 |
+
if (!response.ok) {
|
| 364 |
+
const errorData = await response.json();
|
| 365 |
+
throw new Error(errorData.detail || `Gagal mengambil prediksi untuk ${body.ticker}.`);
|
| 366 |
+
}
|
| 367 |
+
return response.json();
|
| 368 |
+
}
|
| 369 |
+
|
| 370 |
+
function formatPercent(value) {
|
| 371 |
+
return `${(value * 100).toFixed(2)}%`;
|
| 372 |
+
}
|
| 373 |
+
|
| 374 |
+
function updateRiskMetrics(data, tickers) {
|
| 375 |
+
portfolioInfo.textContent = `Portofolio: ${tickers.toUpperCase()}`;
|
| 376 |
+
returnValueEl.textContent = formatPercent(data.expected_annual_return);
|
| 377 |
+
volatilityValueEl.textContent = formatPercent(data.annual_volatility);
|
| 378 |
+
sharpeValueEl.textContent = data.sharpe_ratio.toFixed(2);
|
| 379 |
+
}
|
| 380 |
+
|
| 381 |
+
function updateForecastChart(data, ticker) {
|
| 382 |
+
if (forecastChartInstance) {
|
| 383 |
+
forecastChartInstance.destroy();
|
| 384 |
+
}
|
| 385 |
+
|
| 386 |
+
// Cek jika data yang diterima adalah objek error dari backend
|
| 387 |
+
if (data.error) {
|
| 388 |
+
console.error("Gagal mendapatkan data prediksi:", data.error);
|
| 389 |
+
forecastTitleEl.textContent = `Gagal memuat data prediksi untuk ${ticker.toUpperCase()}`;
|
| 390 |
+
// Anda bisa menambahkan pesan di dalam canvas di sini jika mau
|
| 391 |
+
return;
|
| 392 |
+
}
|
| 393 |
+
|
| 394 |
+
|
| 395 |
+
let chartData; // Variabel untuk menampung data yang formatnya sudah benar
|
| 396 |
+
|
| 397 |
+
// Cek #1: Apakah data sudah dalam format Array yang benar?
|
| 398 |
+
if (Array.isArray(data)) {
|
| 399 |
+
console.log("Format data sudah benar (Array).");
|
| 400 |
+
chartData = data;
|
| 401 |
+
}
|
| 402 |
+
// Cek #2: Jika bukan Array, apakah ini format Object yang kita duga?
|
| 403 |
+
else if (data && data.ds && data.yhat) {
|
| 404 |
+
console.warn("Data bukan Array, mencoba mengubah format dari Object...");
|
| 405 |
+
// Ubah format dari {ds: [...], yhat: [...]} menjadi [{ds: ..., yhat: ...}, ...]
|
| 406 |
+
chartData = data.ds.map((date, index) => ({
|
| 407 |
+
ds: date,
|
| 408 |
+
yhat: data.yhat[index],
|
| 409 |
+
yhat_lower: data.yhat_lower[index],
|
| 410 |
+
yhat_upper: data.yhat_upper[index],
|
| 411 |
+
}));
|
| 412 |
+
} else {
|
| 413 |
+
// Jika format tidak dikenali, tampilkan error dan hentikan fungsi
|
| 414 |
+
console.error("Format data prediksi tidak dikenali atau data kosong.");
|
| 415 |
+
forecastTitleEl.textContent = `Gagal memuat data prediksi untuk ${ticker.toUpperCase()}`;
|
| 416 |
+
if (forecastChartInstance) forecastChartInstance.destroy(); // Hapus chart lama jika ada
|
| 417 |
+
return;
|
| 418 |
+
}
|
| 419 |
+
|
| 420 |
+
if (forecastChartInstance) {
|
| 421 |
+
forecastChartInstance.destroy();
|
| 422 |
+
}
|
| 423 |
+
|
| 424 |
+
// Sekarang, kita gunakan chartData yang formatnya sudah pasti benar (Array)
|
| 425 |
+
const labels = chartData.map(d => d.ds);
|
| 426 |
+
const predictions = chartData.map(d => d.yhat);
|
| 427 |
+
const lowerBounds = chartData.map(d => d.yhat_lower);
|
| 428 |
+
const upperBounds = chartData.map(d => d.yhat_upper);
|
| 429 |
+
|
| 430 |
+
forecastTitleEl.textContent = `Prediksi Harga 30 Hari ke Depan untuk ${ticker.toUpperCase()}`;
|
| 431 |
+
|
| 432 |
+
|
| 433 |
+
const ctx = document.getElementById('forecastChart').getContext('2d');
|
| 434 |
+
forecastChartInstance = new Chart(ctx, {
|
| 435 |
+
type: 'line',
|
| 436 |
+
data: {
|
| 437 |
+
labels: labels,
|
| 438 |
+
datasets: [
|
| 439 |
+
{
|
| 440 |
+
label: 'Prediksi Harga',
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| 441 |
+
data: predictions,
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| 442 |
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borderColor: 'rgba(59, 130, 246, 1)',
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| 443 |
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backgroundColor: 'rgba(59, 130, 246, 0.1)',
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| 444 |
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| 445 |
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tension: 0.1,
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| 446 |
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fill: false,
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| 447 |
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pointRadius: 0
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| 448 |
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},
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| 449 |
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{
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| 450 |
+
label: 'Batas Atas',
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| 451 |
+
data: upperBounds,
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| 452 |
+
borderColor: 'rgba(156, 163, 175, 0.5)',
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| 453 |
+
borderWidth: 1,
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| 454 |
+
borderDash: [5, 5],
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| 455 |
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fill: false,
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| 456 |
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pointRadius: 0
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| 457 |
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},
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| 458 |
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{
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| 459 |
+
label: 'Batas Bawah',
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| 460 |
+
data: lowerBounds,
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| 461 |
+
borderColor: 'rgba(156, 163, 175, 0.5)',
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| 462 |
+
backgroundColor: 'rgba(156, 163, 175, 0.05)',
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| 463 |
+
borderWidth: 1,
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| 464 |
+
borderDash: [5, 5],
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| 465 |
+
fill: '-1', // Fill to the dataset above (upperBounds)
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| 466 |
+
pointRadius: 0
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| 467 |
+
}
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| 468 |
+
]
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| 469 |
+
},
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| 470 |
+
options: {
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| 471 |
+
responsive: true,
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| 472 |
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maintainAspectRatio: false,
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| 473 |
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plugins: { legend: { display: false } },
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| 474 |
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scales: {
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| 475 |
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y: { ticks: { color: document.body.classList.contains('dark-mode') ? '#d1d5db' : '#6b7280' } },
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| 476 |
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x: {
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| 477 |
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ticks: {
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| 478 |
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color: document.body.classList.contains('dark-mode') ? '#d1d5db' : '#6b7280',
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| 479 |
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maxRotation: 0,
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| 480 |
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autoSkip: true,
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| 481 |
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maxTicksLimit: 6
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| 482 |
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}
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| 483 |
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}
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| 484 |
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}
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| 485 |
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}
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| 486 |
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});
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| 487 |
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}
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| 488 |
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});
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| 489 |
+
</script>
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| 490 |
+
</body>
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| 491 |
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</html>
|