feat: Added viewer

viewer/lib/api.ts

@@ -0,0 +1,17 @@
+import { SubstitutionData } from "./types";
+
+export async function getData(): Promise<SubstitutionData | null> {
+  try {
+    const res = await fetch('http://localhost:3000/versioned/v3', {
+      next: { revalidate: 60 },
+    });
+    
+    if (!res.ok) {
+      return null;
+    }
+    
+    return res.json();
+  } catch {
+    return null;
+  }
+}

viewer/lib/types.ts

@@ -0,0 +1,49 @@
+export interface TeacherReference {
+  name: string;
+  code: string;
+}
+
+export type AbsenceEntry =
+  | { type: 'wholeDay'; teacher: string; teacherCode: string }
+  | { type: 'single'; teacher: string; teacherCode: string; hours: string }
+  | { type: 'range'; teacher: string; teacherCode: string; hours: { from: string; to: string } }
+  | { type: 'exkurze'; teacher: string; teacherCode: string }
+  | { type: 'zastoupen'; teacher: string; teacherCode: string; zastupuje: { teacher: string | null } }
+  | { type: 'invalid'; original: string; teacher?: null; teacherCode?: null };
+
+export interface ChangeEntry {
+  text: string;
+  backgroundColor?: string | null;
+  foregroundColor?: string | null;
+}
+
+export interface SubstitutionDayData {
+  info: { inWork: boolean };
+  takesPlace: string;
+  changes: Record<string, (ChangeEntry | null)[]>;
+  absence: AbsenceEntry[];
+}
+
+export interface SubstitutionData {
+  status: {
+    currentUpdateSchedule: number;
+    lastUpdated: string;
+  }
+  schedule: Record<string, SubstitutionDayData>;
+}
+
+export interface Hour {
+  subject: string;
+  title: string;
+  teacher: {
+    code: string;
+    name: string;
+  }
+  group?: string;
+  room: string;
+}
+
+export interface LocalData {
+  class: string;
+  timetable: Hour[][][];
+}

viewer/lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx"
+import { twMerge } from "tailwind-merge"
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}