import { Task, TaskState, StateHistoryEntry } from '@app/features/tasks/data-access/models/task.model';

export class TaskBuilder {
  private task: Task = {
    id: 'task-001',
    title: 'Default Task',
    description: 'Default description',
    dueDate: '2030-01-01',
    stateHistory: [{ state: 'new', date: '2026-01-01' }],
    notes: [],
  };

  withId(id: string): this {
    this.task.id = id;
    return this;
  }

  withTitle(title: string): this {
    this.task.title = title;
    return this;
  }

  withDescription(description: string): this {
    this.task.description = description;
    return this;
  }

  withDueDate(dueDate: string): this {
    this.task.dueDate = dueDate;
    return this;
  }

  withState(state: TaskState, date?: string): this {
    this.task.stateHistory = [{ state, date: date ?? '2026-01-01' }];
    return this;
  }

  withStateHistory(stateHistory: StateHistoryEntry[]): this {
    this.task.stateHistory = stateHistory;
    return this;
  }

  withNotes(notes: string[]): this {
    this.task.notes = notes;
    return this;
  }

  build(): Task {
    return { ...this.task };
  }

  static buildMany(count: number, customize?: (builder: TaskBuilder, index: number) => void): Task[] {
    return Array.from({ length: count }, (_, i) => {
      const builder = new TaskBuilder().withId(`task-${i + 1}`).withTitle(`Task ${i + 1}`);
      customize?.(builder, i);
      return builder.build();
    });
  }
}