Api.dot

digraph G {
    user -> frontend
    frontend -> user
    backend -> frontend
 
    # cal <-> backend
    calendar_strategy [label="interface CalendarStrategy: \n\
    getBlockedDates(start: Timestamp, end: Timestamp) -> [{start: Timestamp, end: Timestamp}] \n\
    ", shape=square]
    calendar_strategy_factory [label="type CalendarStrategyFactory: \n\
      setStrategy(strategy: StrategyName) \n\
      setOptions(options: Object) \n\
      buildStrategy() -> CalendarStrategy \n\
    ", shape=square]
    
    ## cal -> backend
    calendar -> backend [label="[{start: Timestamp, end: Timestamp}]"]
    #backend -> calendar [label="getBlockedDates(strategy: CalendarStrategy, start: Timestamp, end: Timestamp) -> [{start: Timestamp, end: Timestamp}]"]
    
    ## backend -> cal
    backend_to_cal [label="Calendar API: Interface:\lgetBlockedDates(\l  strategy: CalendarStrategy,\l  start: Timestamp,\l  end: Timestamp\l) -> [{start: Timestamp, end: Timestamp}]", 
    shape="square"];
    backend -> backend_to_cal [arrowhead="none"]
    backend_to_cal -> calendar
    
    backend_to_cal -> calendar_strategy
    calendar_strategy -> calendar_strategy_factory
    
    # backend <-> Datenbank
    dbfn [label="\
    newEvent(name: String, description: String, start: Timestamp, end: Timestamp, duration: Duration, dayStart: Duration, dayEnd: Duration, weekdays: Weekdays) -> Event\n\
    newParticipant(event: Event, name: String) -> Participant\n\
    newBlockedDate(event: Event, participant: Participant, start: Timestamp, end: Timestamp)\n\
    newBlockedDates(event: Event, participant: Participant, blockedDates: [{start: Timestamp, end: Timestamp}])",
    shape=block]
    user [shape=Mdiamond];
    backend -> dbfn [arrowhead="none"]
    dbfn -> datenbank
    
    # frontend <-> backend
    frontend -> frontend_to_backend [arrowhead=none]
    frontend_to_backend -> backend
    
    frontend_to_backend [label="\l\
        User Authentication through cookies \l\
        POST /events -> ID (create an Event and receive id) \l\
        GET /events/<id> -> Event (Get an event by id) \l\
        POST /events/<id>/participants/ : {name: String} -> UserId (Add a user to an event) \l\
        GET /events/<id>/participants/ -> [{user_id: UserId, name: String, blockedDates: [{start: Timestamp, end: Timestamp}]}] \
(Get all user of event) \l\
        POST /events/<id>/participants/<user_id>/blocked_dates : {start: Timestamp, end: Timestamp} \l\
        GET /events/<id>/participants/<user_id>/blocked_dates -> [{start: Timestamp, end: Timestamp}] \l\
        POST /events/<id>/participants/<user_id>/blocked_dates/caldav : {link: String, password: String} \l\
    "shape=square]
    
    # calendar
    calendar [label="Calender API"];
    user_calendar [label="Users Calendar"]
    
    calendar -> user_calendar
    user_calendar -> calendar
  
    db [label="MariaDB"]
    datenbank [label="Datenbank API"]
    
    datenbank -> db
}