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| 1 | +package ru.yandex.javacource.golotin.schedule.service; |
| 2 | + |
| 3 | +import ru.yandex.javacource.golotin.schedule.model.Epic; |
| 4 | +import ru.yandex.javacource.golotin.schedule.model.Status; |
| 5 | +import ru.yandex.javacource.golotin.schedule.model.Subtask; |
| 6 | +import ru.yandex.javacource.golotin.schedule.model.Task; |
| 7 | + |
| 8 | +import java.util.ArrayList; |
| 9 | +import java.util.HashMap; |
| 10 | + |
| 11 | + |
| 12 | +public class InMemoryTaskManager implements TaskManager { |
| 13 | + private int counterId = 0; |
| 14 | + private final HashMap<Integer, Task> tasks = new HashMap<>(); |
| 15 | + private final HashMap<Integer, Epic> epics = new HashMap<>(); |
| 16 | + private final HashMap<Integer, Subtask> subtasks = new HashMap<>(); |
| 17 | + private final ArrayList<Object> history = new ArrayList<>(10); |
| 18 | + |
| 19 | + @Override |
| 20 | + public Task createTask(Task task) { |
| 21 | + final int id = ++counterId; |
| 22 | + task.setId(id); |
| 23 | + tasks.put(id, task); |
| 24 | + return task; |
| 25 | + } |
| 26 | + |
| 27 | + @Override |
| 28 | + public Epic createEpic(Epic epic) { |
| 29 | + final int id = ++counterId; |
| 30 | + epic.setId(id); |
| 31 | + epics.put(id, epic); |
| 32 | + return epic; |
| 33 | + } |
| 34 | + |
| 35 | + |
| 36 | + @Override |
| 37 | + public Subtask createSubtask(Subtask subtask) { |
| 38 | + final int epicId = subtask.getEpicId(); |
| 39 | + Epic epic = epics.get(epicId); |
| 40 | + if (epic == null) { |
| 41 | + return null; |
| 42 | + } |
| 43 | + final int id = ++counterId; |
| 44 | + subtask.setId(id); |
| 45 | + subtasks.put(id, subtask); |
| 46 | + epic.addSubtaskId(subtask.getId()); |
| 47 | + updateEpicStatus(epicId); |
| 48 | + return subtask; |
| 49 | + } |
| 50 | + |
| 51 | + @Override |
| 52 | + public void updateTask(Task task) { |
| 53 | + final int id = task.getId(); |
| 54 | + final Task savedTask = tasks.get(id); |
| 55 | + if (savedTask == null) { |
| 56 | + return; |
| 57 | + } |
| 58 | + tasks.put(id, task); |
| 59 | + } |
| 60 | + |
| 61 | + @Override |
| 62 | + public void updateEpic(Epic epic) { |
| 63 | + Epic savedEpic = epics.get(epic.getId()); |
| 64 | + if (savedEpic == null) { |
| 65 | + return; |
| 66 | + } |
| 67 | + savedEpic.setName(epic.getName()); |
| 68 | + savedEpic.setDescription(epic.getDescription()); |
| 69 | + } |
| 70 | + |
| 71 | + @Override |
| 72 | + public void updateSubtask(Subtask subtask) { |
| 73 | + final int id = subtask.getId(); |
| 74 | + final int epicId = subtask.getEpicId(); |
| 75 | + final Subtask savedSubtask = subtasks.get(id); |
| 76 | + if (savedSubtask == null) { |
| 77 | + return; |
| 78 | + } |
| 79 | + final Epic epic = epics.get(epicId); |
| 80 | + if (epic == null) { |
| 81 | + return; |
| 82 | + } |
| 83 | + subtasks.put(id, subtask); |
| 84 | + updateEpicStatus(epicId); |
| 85 | + } |
| 86 | + |
| 87 | + @Override |
| 88 | + public void cleanTasks() { |
| 89 | + tasks.clear(); |
| 90 | + } |
| 91 | + |
| 92 | + public void cleanSubtasks() { |
| 93 | + for (Epic epic : epics.values()) { |
| 94 | + epic.cleanSubtask(); |
| 95 | + updateEpicStatus(epic.getId()); |
| 96 | + } |
| 97 | + subtasks.clear(); |
| 98 | + } |
| 99 | + |
| 100 | + @Override |
| 101 | + public void cleanEpics() { |
| 102 | + epics.clear(); |
| 103 | + subtasks.clear(); |
| 104 | + |
| 105 | + } |
| 106 | + |
| 107 | + @Override |
| 108 | + public void deleteTask(int id) { |
| 109 | + tasks.remove(id); |
| 110 | + } |
| 111 | + |
| 112 | + @Override |
| 113 | + public void deleteSubtask(int id) { |
| 114 | + Subtask subtask = subtasks.remove(id); |
| 115 | + if (subtask == null) { |
| 116 | + return; |
| 117 | + } |
| 118 | + Epic epic = epics.get(subtask.getEpicId()); |
| 119 | + epic.removeSubtask(id); |
| 120 | + updateEpicStatus(epic.getId()); |
| 121 | + } |
| 122 | + |
| 123 | + @Override |
| 124 | + public void deleteEpic(int id) { |
| 125 | + Epic epic = epics.remove(id); |
| 126 | + if (epic == null) { |
| 127 | + return; |
| 128 | + } |
| 129 | + for (Integer subtaskId : epic.getSubtaskIds()) { |
| 130 | + subtasks.remove(subtaskId); |
| 131 | + } |
| 132 | + } |
| 133 | + |
| 134 | + @Override |
| 135 | + public ArrayList<Task> getTasks() { |
| 136 | + return new ArrayList<>(tasks.values()); |
| 137 | + } |
| 138 | + |
| 139 | + @Override |
| 140 | + public ArrayList<Epic> getEpics() { |
| 141 | + return new ArrayList<>(epics.values()); |
| 142 | + } |
| 143 | + |
| 144 | + @Override |
| 145 | + public ArrayList<Subtask> getEpicSubtasks(int epicId) { |
| 146 | + Epic epic = epics.get(epicId); |
| 147 | + ArrayList<Subtask> getSubtasks = null; |
| 148 | + for (Integer subtaskId : epic.getSubtaskIds()) { |
| 149 | + if (this.subtasks.containsKey(subtaskId)) { |
| 150 | + getSubtasks.add(this.subtasks.get(subtaskId)); |
| 151 | + } |
| 152 | + } |
| 153 | + return getSubtasks; |
| 154 | + } |
| 155 | + |
| 156 | + @Override |
| 157 | + public Task getTask(int id) { |
| 158 | + checkArray(tasks.get(id)); |
| 159 | + return tasks.get(id); |
| 160 | + |
| 161 | + } |
| 162 | + |
| 163 | + @Override |
| 164 | + public Epic getEpic(int id) { |
| 165 | + checkArray(epics.get(id)); |
| 166 | + return epics.get(id); |
| 167 | + } |
| 168 | + |
| 169 | + @Override |
| 170 | + public Subtask getSubtask(int id) { |
| 171 | + checkArray(subtasks.get(id)); |
| 172 | + return subtasks.get(id); |
| 173 | + } |
| 174 | + |
| 175 | + @Override |
| 176 | + public <T> ArrayList<T> getHistory() { |
| 177 | + System.out.println(history.size()); |
| 178 | + return (ArrayList<T>) history; |
| 179 | + } |
| 180 | + |
| 181 | + public HashMap<Integer, Task> getTask() { |
| 182 | + return tasks; |
| 183 | + } |
| 184 | + |
| 185 | + public HashMap<Integer, Epic> getEpic() { |
| 186 | + return epics; |
| 187 | + } |
| 188 | + |
| 189 | + public HashMap<Integer, Subtask> getSubtask() { |
| 190 | + return subtasks; |
| 191 | + } |
| 192 | + |
| 193 | + private void updateEpicStatus(int epicId) { |
| 194 | + Epic epic = epics.get(epicId); |
| 195 | + ArrayList<Subtask> subtasks = new ArrayList<>(); |
| 196 | + for (Integer subtaskId : epic.getSubtaskIds()) { |
| 197 | + if (this.subtasks.containsKey(subtaskId)) { |
| 198 | + subtasks.add(this.subtasks.get(subtaskId)); |
| 199 | + } |
| 200 | + } |
| 201 | + for (Subtask statusSubtask : subtasks) { |
| 202 | + short subtaskNew = 0; |
| 203 | + short subtaskDone = 0; |
| 204 | + if (statusSubtask.getStatus() == Status.IN_PROGRESS) { |
| 205 | + epic.setStatus(Status.IN_PROGRESS); |
| 206 | + break; |
| 207 | + } else if (statusSubtask.getStatus() == Status.NEW) { |
| 208 | + subtaskNew++; |
| 209 | + } else if (statusSubtask.getStatus() == Status.DONE) { |
| 210 | + subtaskDone++; |
| 211 | + } |
| 212 | + if (subtaskDone == subtasks.size()) { |
| 213 | + epic.setStatus(Status.DONE); |
| 214 | + break; |
| 215 | + } |
| 216 | + if (subtaskNew == subtasks.size()) { |
| 217 | + epic.setStatus(Status.NEW); |
| 218 | + } else { |
| 219 | + epic.setStatus(Status.IN_PROGRESS); |
| 220 | + } |
| 221 | + break; |
| 222 | + } |
| 223 | + } |
| 224 | + |
| 225 | + private <T> void checkArray(T t) { |
| 226 | + if (history.size() < 10) { |
| 227 | + |
| 228 | + history.add(t); |
| 229 | + } else { |
| 230 | + history.remove(0); |
| 231 | + history.add(t); |
| 232 | + } |
| 233 | + } |
| 234 | +} |
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