init

exporter.py

@@ -0,0 +1,65 @@
+import datetime
+from collections.abc import Sequence
+from pathlib import Path
+
+from db_models import WeatherForecast
+
+_HEADERS = [
+    "Дата",
+    "Мин. темп. (°C)",
+    "Макс. темп. (°C)",
+    "Описание",
+    "Влажность (%)",
+    "Ветер (м/с)",
+]
+
+
+def _format_number(value: float) -> str:
+    return f"{value:g}"
+
+
+def export_md(records: Sequence[WeatherForecast], output_file: str, city: str) -> None:
+    rows: list[list[str]] = []
+    for record in sorted(records, key=lambda r: r.forecast_date):
+        rows.append(
+            [
+                record.forecast_date.isoformat(),
+                _format_number(record.temp_min),
+                _format_number(record.temp_max),
+                record.description or "",
+                str(record.humidity),
+                _format_number(record.wind_speed),
+            ]
+        )
+
+    if records:
+        dates: list[datetime.date] = [r.forecast_date for r in records]
+        period = f"Период: {min(dates).isoformat()} - {max(dates).isoformat()}"
+    else:
+        period = "Период: -"
+
+    location = f"Автоматически определённая локация: {city}"
+
+    widths = [len(header) for header in _HEADERS]
+    for row in rows:
+        for i, cell in enumerate(row):
+            widths[i] = max(widths[i], len(cell))
+
+    def _row(row: list[str]) -> str:
+        padded = [cell.ljust(widths[i]) for i, cell in enumerate(row)]
+        return "| " + " | ".join(padded) + " |"
+
+    separator = "| " + " | ".join("-" * width for width in widths) + " |"
+
+    lines = [
+        "# Прогноз погоды",
+        "",
+        location,
+        period,
+        "",
+        _row(_HEADERS),
+        separator,
+        *(_row(row) for row in rows),
+        "",
+    ]
+    Path(output_file).write_text("\n".join(lines), encoding="utf-8")