initial commit

server/calendar.js

@@ -0,0 +1,59 @@
+import { readDocx } from "./parser.js";
+
+const toIso = (d, m, y) =>
+  `${y}-${m.padStart(2, "0")}-${d.padStart(2, "0")}`;
+const time = (h, m) => `${h.padStart(2, "0")}:${m}`;
+
+// "Расписание белых и зеленых недель.docx": pairs of cells "номер | дд.мм.гггг-дд.мм.гггг".
+export function parseWeeksDocx(buffer) {
+  const { tables } = readDocx(buffer);
+  const weeks = [];
+  for (const { rows } of tables) {
+    const header = rows[0] || [];
+    const colorOf = (col) => {
+      const label = header.find((c) => c.col === col)?.text.toLowerCase() || "";
+      return /зел[её]н/.test(label) ? "green" : /бел/.test(label) ? "white" : null;
+    };
+    for (const row of rows)
+      row.forEach((cell, i) => {
+        const range = cell.text.match(
+          /(\d{1,2})\.(\d{1,2})\.(\d{4})\s*[-–]\s*(\d{1,2})\.(\d{1,2})\.(\d{4})/,
+        );
+        const n = Number(row[i - 1]?.text.match(/^\d{1,2}$/)?.[0]);
+        if (!range || !n) return;
+        weeks.push({
+          n,
+          start: toIso(range[1], range[2], range[3]),
+          end: toIso(range[4], range[5], range[6]),
+          color: colorOf(cell.col) || (n % 2 ? "white" : "green"),
+        });
+      });
+  }
+  weeks.sort((a, b) => a.start.localeCompare(b.start));
+  if (!weeks.length)
+    throw new Error("Таблица недель не распознана.");
+  return weeks;
+}
+
+// "Расписание звонков.docx": "1 пара | 8.30 – 9.10 9.15 – 9.55".
+export function parseBellsDocx(buffer) {
+  const { tables } = readDocx(buffer);
+  const bells = [];
+  for (const { rows } of tables)
+    for (const row of rows) {
+      const pair = Number(row[0]?.text.match(/^(\d)\s*пара/i)?.[1]);
+      const times = [
+        ...row
+          .slice(1)
+          .map((c) => c.text)
+          .join(" ")
+          .matchAll(/([0-2]?\d)[.:]([0-5]\d)/g),
+      ].map((m) => time(m[1], m[2]));
+      if (!pair || times.length < 2) continue;
+      const halves = [];
+      for (let i = 0; i + 1 < times.length; i += 2)
+        halves.push([times[i], times[i + 1]]);
+      bells.push({ pair, start: times[0], end: times.at(-1), halves });
+    }
+  return bells.sort((a, b) => a.pair - b.pair);
+}