export const DEMO_SESSION_INFO = {
  authenticated: true,
  appliedKeys: [],
  permissions: [],
};

export const DEMO_CLASS_LIST = ["Demo", "Empty"];

export const DEMO_TIMETABLE = {
  timetables: [
    {
      id: 1,
      title: "Demo",
      createdAt: "2023-08-28T08:00:53.233Z",
      updatedAt: "2025-01-07T11:37:42.590Z",
      class: "Demo",
      validFrom: "2023-08-28T08:00:53.233Z",
      validUntil: null,
      data: [
        [
          [{}],
          [{ room: "R 206", length: 1, subject: "MA1", teacher: "Wen" }],
          [{ room: "R 307", length: 2, subject: "en1", teacher: "Fre" }],
          [{ room: "R 005", length: 2, subject: "de2", teacher: "Str" }],
        ],
        [
          [{ room: "R 107", length: 2, subject: "IN2", teacher: "Kom" }],
          [{ room: "R 206", length: 2, subject: "MA1", teacher: "Wen" }],
          [{ room: "R 403", subject: "geo2", teacher: "Spl" }],
          [{ room: "", length: 1, subject: "", teacher: "" }],
          [{ room: "R 007", subject: "Sp-Th", teacher: "Bun" }],
          [{ room: "R 313", subject: "pw1", teacher: "Göl" }],
        ],
        [
          [{ room: "R 313", length: 2, subject: "pw1", teacher: "Göl" }],
          [{ room: "R 314", length: 2, subject: "ge1", teacher: "Mog" }],
          [{ room: "R 307", subject: "en1", teacher: "Fre" }],
          [{ room: "R 403", length: 2, subject: "geo2", teacher: "Spl" }],
          [{}],
          [{ room: "R 002", length: 2, subject: "Sp-Fit", teacher: "Gan" }],
        ],
        [
          [{ room: "R 206", length: 2, subject: "MA1", teacher: "Wen" }],
          [{ room: "R 107", length: 2, subject: "IN2", teacher: "Kom" }],
          [{ room: "R 209", subject: "ph1", teacher: "And" }],
          [{ room: "R 005", length: 2, subject: "Sp-Th", teacher: "Bun" }],
        ],
        [
          [{ room: "R 107", length: 2, subject: "IN2", teacher: "Kom" }],
          [{ room: "R 314", length: 1, subject: "ge1", teacher: "Mog" }],
          [{ room: "R 005", subject: "de2", teacher: "Str" }],
          [{ room: "R 209", length: 2, subject: "ph1", teacher: "And" }],
        ],
      ],
      source: "Demo Provider",
      trusted: true,
    },
  ],
  times: [
    {
      lesson: 1,
      start: "1970-01-01T07:00:00.000Z",
      end: "1970-01-01T07:45:00.000Z",
    },
    {
      lesson: 3,
      start: "1970-01-01T08:50:00.000Z",
      end: "1970-01-01T09:35:00.000Z",
    },
    {
      lesson: 5,
      start: "1970-01-01T11:10:00.000Z",
      end: "1970-01-01T11:55:00.000Z",
    },
    {
      lesson: 6,
      start: "1970-01-01T12:00:00.000Z",
      end: "1970-01-01T12:45:00.000Z",
    },
    {
      lesson: 7,
      start: "1970-01-01T12:50:00.000Z",
      end: "1970-01-01T13:35:00.000Z",
    },
    {
      lesson: 8,
      start: "1970-01-01T13:40:00.000Z",
      end: "1970-01-01T14:25:00.000Z",
    },
    {
      lesson: 9,
      start: "1970-01-01T14:30:00.000Z",
      end: "1970-01-01T15:15:00.000Z",
    },
    {
      lesson: 10,
      start: "1970-01-01T15:20:00.000Z",
      end: "1970-01-01T16:05:00.000Z",
    },
    {
      lesson: 11,
      start: "1970-01-01T16:10:00.000Z",
      end: "1970-01-01T16:55:00.000Z",
    },
    {
      lesson: 2,
      start: "1970-01-01T07:45:00.000Z",
      end: "1970-01-01T08:30:00.000Z",
    },
    {
      lesson: 4,
      start: "1970-01-01T09:40:00.000Z",
      end: "1970-01-01T10:25:00.000Z",
    },
  ],
};

export function getDemoSubstitutions(date) {
  let weekday = new Date(date).getDay();

  switch (weekday) {
    case 1: {
      return [
        {
          id: 0,
          class: ["Demo"],
          type: "cancellation",
          rawType: "Entfall",
          lesson: 5,
          date: date,
          notes: null,
          teacher: "Str",
          change: {},
        },
        {
          id: 1,
          class: ["Demo"],
          type: "cancellation",
          rawType: "Entfall",
          lesson: 6,
          date: date,
          notes: null,
          teacher: "Str",
          change: {},
        },
        {
          id: 2,
          class: ["Demo"],
          type: "change",
          rawType: "Raum-Vtr.",
          lesson: 3,
          date: date,
          notes: null,
          teacher: "Fre",
          change: {
            room: "308",
            teacher: "Fre",
            subject: "en1",
          },
        },
      ];
    }
    case 2: {
      return [
        {
          id: 3,
          class: ["Demo"],
          type: "cancellation",
          rawType: "Entfall",
          lesson: 7,
          date: date,
          notes: null,
          teacher: "Bun",
          change: {},
        },
        {
          id: 4,
          class: ["Demo"],
          type: "change",
          rawType: "Vertretung",
          lesson: 8,
          date: date,
          notes: null,
          teacher: "Bun",
          change: {
            room: "007",
            teacher: "Aci",
            subject: "Sp-Th",
          },
        },
      ];
    }
    case 3: {
      return [
        {
          id: 5,
          class: ["Demo"],
          type: "cancellation",
          rawType: "Entfall",
          lesson: 9,
          date: date,
          notes: "Aufgaben im Sekretariat",
          teacher: "Gan",
          change: {},
        },
        {
          id: 6,
          class: ["Demo"],
          type: "cancellation",
          rawType: "Entfall",
          lesson: 10,
          date: date,
          notes: null,
          teacher: "Gan",
          change: {},
        },
      ];
    }
  }

  return [];
}

export function getDemoHistory(date) {
  let weekday = new Date(date).getDay();

  switch (weekday) {
    case 1: {
      return [
        ...getDemoSubstitutions(date).map((e) => substitutionToChange(e)),
      ];
    }
    case 2: {
      return [
        ...getDemoSubstitutions(date).map((e) => substitutionToChange(e)),
        {
          id: 101,
          type: "deletion",
          class: ["Demo"],
          substitutionId: 100,
          lesson: 5,
          updatedAt: date - 47800000,
          date: date,
          teacher: null,
          change: {
            date: date,
            type: "cancellation",
            class: ["Demo"],
            notes: null,
            change: {},
            lesson: 5,
            rawType: "Entfall",
            teacher: "Spl",
          },
          parseEventId: 0,
        },
        {
          id: 100,
          type: "addition",
          class: ["Demo"],
          substitutionId: 100,
          lesson: 5,
          updatedAt: date - 57800000,
          date: date,
          teacher: null,
          change: {
            date: date,
            type: "cancellation",
            class: ["Demo"],
            notes: null,
            change: {},
            lesson: 5,
            rawType: "Entfall",
            teacher: "Spl",
          },
          parseEventId: 0,
        },
      ];
    }
    case 3: {
      return [
        {
          id: 102,
          type: "change",
          class: ["Demo"],
          substitutionId: 5,
          lesson: 9,
          updatedAt: date - 57800000,
          date: date,
          teacher: null,
          change: {
            notes: {
              before: null,
              after: "Aufgaben im Sekretariat",
            },
          },
          parseEventId: 0,
        },
        ...getDemoSubstitutions(date)
          .map((e) => substitutionToChange(e))
          .map((e) => {
            e.change.notes = null;
            return e;
          }),
      ];
    }
  }

  return [];
}

function substitutionToChange(substitution) {
  return {
    id: substitution.id,
    type: "addition",
    class: substitution.class,
    substitutionId: substitution.id,
    lesson: substitution.lesson,
    updatedAt: substitution.date - 46800000,
    date: substitution.date,
    teacher: null,
    change: {
      date: substitution.date,
      type: substitution.type,
      class: substitution.class,
      notes: substitution.notes,
      change: substitution.change,
      lesson: substitution.lesson,
      rawType: substitution.rawType,
      teacher: substitution.teacher,
    },
    parseEventId: 0,
  };
}