/*
  lab3-6b.java 
*/
// to represent the time of day 
class ClockTime {
  int hour;
  int minute;

  ClockTime(int hour, int minute) {
    this.hour = hour;
    this.minute = minute;
  }
}

// to represent an entry in an iPhoto collection
interface Shot{ }

// to represent a still photo in an iPhoto collection
class Photo implements Shot{
  String name;
  int width;
  int height;
  int bytes;
  String kind;
  ClockTime time;
  
  Photo(String name, int width, int height, int bytes, String kind, ClockTime time){
    this.name = name;
    this.width = width;
    this.height = height;
    this.bytes = bytes;
    this.kind = kind;
    this.time = time;
  }
}

// to represent a video clip in an iPhoto collection
class Video implements Shot{
  String name;
  String kind;
  int size;
  int duration;     // in minutes
  boolean sound;
  ClockTime time;
  
  Video(String name, String kind, int size, int duration, boolean sound, ClockTime time){
    this.name = name;
    this.kind = kind;
    this.size = size;
    this.duration = duration;
    this.sound = sound;
    this.time = time;
  }
}

// Purpose: to represent an arbitrary number of ads.
interface ILoShot {}

// Purpose: to represent an empty list of ads.
class MTLoShot implements ILoShot {
  // No fields
  // Constructor
  MTLoShot() {}
}

// Purpose: to represent a nonempty list of ads.
class ConsLoShot implements ILoShot {
  Shot first;
  ILoShot rest;
  
  // Constructor
  ConsLoShot(Shot first, ILoShot rest) {
    this.first = first;
    this.rest = rest;
  }
}

// examples for the class hierachy that represents photo and video shots
class Examples{
  Examples (){}
  
  // Examples for the class ClockTime
  ClockTime ct08hr15min = new ClockTime( 8, 15);
  ClockTime ct16hr35min = new ClockTime(16, 35);
  ClockTime ct09hr50min = new ClockTime( 9, 50);
  ClockTime ct19hr00min = new ClockTime(19,  0);

  // River photo w=3456 h=2304 3614571 bytes "jpeg" at 8;15 am
  Shot river = 
    new Photo("River", 3456, 2304, 3614571, "jpeg", this.ct08hr15min);
  
  // Mountain photo w=2448 h=3264 1276114 bytes "jpeg" at 7:00 pm (sunset)
  Shot mountain =
    new Photo("Mountain", 2448, 3264, 1276114, "jpeg", this.ct19hr00min);
  
  // People photo w=545 h=641 13760 bytes "gif" at 4:35 pm (party)
  Shot people = new Photo("People", 545, 641, 13760, "gif", this.ct16hr35min);
  
  // PLT icon image w=16 h=16 1334 bytes "bmp" at 9:50 am
  Shot pltIcon = new Photo("PLT icon", 16, 16, 1334, "bmp", this.ct09hr50min);
  
  // Beach video "QuickTime" 3614571 bytes 5 min silent at 4:35 pm 
  Shot beach =
    new Video("Beach", "QuickTime", 3614571, 5, false, this.ct16hr35min);

  // Hike video "RealPlayer" 1276114 bytes  3 min silent at 9:50 am
  Shot hike = 
    new Video("Hike", "RealPlayer", 1276114,  3, false, this.ct09hr50min);

  // Party video "QuickTime" 5456434bytes 2 min with sound at 7:00 pm
  Shot party = 
    new Video("Party", "QuickTime", 5456434, 2, true, this.ct19hr00min);

  // Tutorial video "RealPlayer" 23551334 bytes 5 min at 9:50 am
  Shot tutorial = 
    new Video("Tutorial", "RealPlayer", 23551334, 5, true, this.ct09hr50min);
    
  // an empty list of shots
  ILoShot noShots = new MTLoShot();
  
  // personal still photos
  ILoShot photos = new ConsLoShot(this.river,
                     new ConsLoShot(this.mountain,
                       new ConsLoShot(this.people, this.noShots)));
                       
  // photos and videos from outdoor trips
  ILoShot trips = new ConsLoShot(this.river,
                   new ConsLoShot(this.mountain,
                     new ConsLoShot(this.beach,
                       new ConsLoShot(this.hike, this.noShots))));
}

/*
      +------------+
      |  ILoShot   |<------+
      +------------+       | 
           / \             |
           ---             |
            |              |
       ---------           |
       |       |           |
+----------+  +--------------+ |
| MTLoShot |  | ConsLoShot   | |
+----------+  +--------------+ |
           +--| Shot first   | |
           |  | ILoShot rest |-+
           |  +--------------+
           v
       +------------+
       | Shot       |
       +------------+
             / \
             ---
              |
      -------------------------
      |                       |
+----------------+        +----------------+
| Photo          |        | Video          |
+----------------+        +----------------+
| String name    |        | String name    |
| int width      |        | String kind    |
| int height     |        | int size       |
| int bytes      |        | int duration   |
| String kind    |        | boolean sound  |
| ClockTime time |--+  +--| ClockTime time |
+----------------+  |  |  +----------------+
                    v  v
              +------------+
              | ClockTime  |
              +------------+
              | int hour   |
              | int minute |
              +------------+

*/