Spaces:

eshan6704
/

backend

Running

App Files Files Community

eshan6704 commited on 6 days ago

Commit

03ea2b0

verified ·

1 Parent(s): a36de40

Create preopen_html.py

Browse files

Files changed (1) hide show

preopen_html.py +186 -0

preopen_html.py ADDED Viewed

	@@ -0,0 +1,186 @@

+from nsepython import *
+import pandas as pd
+def build_preopen_html(key="NIFTY"):
+    # Fetch pre-open data
+    p = nsefetch("https://www.nseindia.com/api/market-data-pre-open?key=" + key)
+    data_df = df_from_data(p.pop("data"))
+    rem_df  = df_from_data([p])
+    main_df = data_df.iloc[[0]] if not data_df.empty else pd.DataFrame()
+    const_df = data_df.iloc[1:] if len(data_df) > 1 else pd.DataFrame()
+    # ================= HELPER FUNCTION =================
+    def df_to_html_color(df, metric_col=None):
+        df_html = df.copy()
+        top3_up = []
+        top3_down = []
+        if metric_col and metric_col in df_html.columns and pd.api.types.is_numeric_dtype(df_html[metric_col]):
+            col_numeric = df_html[metric_col].dropna()
+            top3_up = col_numeric.nlargest(3).index.tolist()
+            top3_down = col_numeric.nsmallest(3).index.tolist()
+        for idx, row in df_html.iterrows():
+            for col in df_html.columns:
+                val = row[col]
+                style = ""
+                if pd.api.types.is_numeric_dtype(type(val)) or isinstance(val, (int, float)):
+                    val_fmt = f"{val:.2f}"
+                    if val > 0:
+                        style = "numeric-positive"
+                    elif val < 0:
+                        style = "numeric-negative"
+                    if metric_col and col == metric_col:
+                        if idx in top3_up:
+                            style += " top-up"
+                        elif idx in top3_down:
+                            style += " top-down"
+                    df_html.at[idx, col] = f'<span class="{style.strip()}">{val_fmt}</span>'
+                else:
+                    df_html.at[idx, col] = str(val)
+        return df_html.to_html(index=False, escape=False, classes="compact-table")
+    # ================= MERGE INFO + MAIN INTO MINI-CARDS =================
+    def merge_info_main_cards(rem_df, main_df):
+        combined = pd.concat([rem_df, main_df], axis=1)
+        combined = combined.loc[:, ~combined.columns.duplicated()]
+        cards_html = '<div class="mini-card-container">'
+        for col in combined.columns:
+            val = combined.at[0, col] if not combined.empty else ""
+            cards_html += f'''
+            <div class="mini-card">
+                <div class="card-key">{col}</div>
+                <div class="card-val">{val}</div>
+            </div>
+            '''
+        cards_html += '</div>'
+        return cards_html
+    info_cards_html = merge_info_main_cards(rem_df, main_df)
+    # Constituents table
+    cons_html = df_to_html_color(const_df) if not const_df.empty else "<i>No pre-open constituents</i>"
+    # Metric tables (for numeric columns)
+    metric_cols = [c for c in const_df.columns if pd.api.types.is_numeric_dtype(const_df[c])] if not const_df.empty else []
+    metric_tables = ""
+    for col in metric_cols:
+        df_const = const_df.copy()
+        df_const[col] = pd.to_numeric(df_const[col], errors="ignore")
+        df_const = df_const.sort_values(col, ascending=False)
+        df_html = df_to_html_color(df_const[['symbol', col]] if 'symbol' in df_const.columns else df_const[[col]], metric_col=col)
+        metric_tables += f"""
+        <div class="small-table">
+            <div class="st-title">{col}</div>
+            <div class="st-body">{df_html}</div>
+        </div>
+        """
+    # ================= FINAL HTML =================
+    html = f"""
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="UTF-8">
+<style>
+body {{
+    font-family: Arial;
+    margin: 12px;
+    background: #f5f5f5;
+    color: #222;
+    font-size: 14px;
+}}
+h2, h3 {{
+    margin: 12px 0 6px 0;
+    font-weight: 600;
+}}
+table {{
+    border-collapse: collapse;
+    width: 100%;
+    table-layout: auto;
+}}
+th, td {{
+    border: 1px solid #bbb;
+    padding: 5px 8px;
+    text-align: left;
+    font-size: 13px;
+}}
+th {{
+    background: #333;
+    color: white;
+    font-weight: 600;
+}}
+.compact-table td.numeric-positive {{ color: green; font-weight: bold; }}
+.compact-table td.numeric-negative {{ color: red; font-weight: bold; }}
+.compact-table td.top-up {{ background: #a8f0a5; }}
+.compact-table td.top-down {{ background: #f0a8a8; }}
+.small-table {{
+    background: white;
+    border-radius: 6px;
+    padding: 8px;
+    box-shadow: 0px 1px 4px rgba(0,0,0,0.15);
+    border: 1px solid #ddd;
+    overflow-y: auto;
+}}
+.st-title {{
+    font-size: 14px;
+    text-align: center;
+    margin-bottom: 6px;
+    font-weight: bold;
+    background: #222;
+    color: white;
+    padding: 5px 0;
+    border-radius: 4px;
+}}
+.st-body {{
+    max-height: 300px;
+    overflow-y: auto;
+    font-size: 12px;
+}}
+.grid {{
+    display: grid;
+    grid-template-columns: repeat(5, 1fr);
+    gap: 12px;
+    margin-top: 12px;
+}}
+.mini-card-container {{
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+}}
+.mini-card {{
+    background: #fff;
+    padding: 8px 10px;
+    border-radius: 6px;
+    box-shadow: 0 1px 3px rgba(0,0,0,0.12);
+    min-width: 120px;
+    font-size: 13px;
+}}
+.card-key {{ font-weight: bold; color: #333; margin-bottom: 2px; }}
+.card-val {{ color: #222; }}
+</style>
+</head>
+<body>
+<h2>Pre-Open Data: {key}</h2>
+<div class="compact-section">
+    <h3>Info + Main Data</h3>
+    {info_cards_html}
+</div>
+<div class="compact-section">
+    <h3>Pre-Open Constituents</h3>
+    {cons_html}
+</div>
+<h3>Metric Tables (if numeric)</h3>
+<div class="grid">
+    {metric_tables}
+</div>
+</body>
+</html>
+"""
+    return html