import {
  IssueReadModel,
  IssueTimelineEntry,
  ProjectReadModel,
  ProjectRole,
  ReleaseReadModel,
  ReleaseStatus,
  SprintReadModel,
  SprintStatus,
  StatusCategory as C,
} from '@task-stream/api/tracker/domain';
import { computeHome, HomeProjectInput, lastDays } from './home';

const NOW = new Date('2026-10-15T12:00:00Z');
const ana = { id: 'ana', name: 'Ana' };
const bob = { id: 'bob', name: 'Bob' };

const project = (
  key: string,
  role: ProjectRole,
  extra: Partial<ProjectReadModel> = {},
): ProjectReadModel =>
  ({
    id: key.toLowerCase(),
    key,
    name: `Proyecto ${key}`,
    isPublic: false,
    archivedAt: null,
    members: [
      { user: ana, role },
      { user: bob, role: ProjectRole.MEMBER },
    ],
    ...extra,
  }) as ProjectReadModel;

const issue = (
  id: string,
  category: C,
  extra: Partial<IssueReadModel> = {},
): IssueReadModel =>
  ({
    id,
    key: id,
    projectId: 'web',
    title: `Ticket ${id}`,
    status: category,
    statusCategory: category,
    reporter: bob,
    assignee: null,
    watchers: [],
    labels: [],
    dueDate: null,
    trashedAt: null,
    storyPoints: null,
    sprint: null,
    createdAt: '2026-09-01T09:00:00Z',
    updatedAt: '2026-10-01T09:00:00Z',
    ...extra,
  }) as IssueReadModel;

let seq = 0;
const done = (
  issueId: string,
  at: string,
  assigneeId: string,
): IssueTimelineEntry[] => [
  {
    id: `${issueId}:${++seq}`,
    issueId,
    projectId: 'web',
    at: '2026-09-01T09:00:00Z',
    kind: 'status',
    status: 'IN_PROGRESS',
    category: C.IN_PROGRESS,
    assigneeId,
  },
  {
    id: `${issueId}:${++seq}`,
    issueId,
    projectId: 'web',
    at,
    kind: 'status',
    status: 'DONE',
    category: C.DONE,
    assigneeId,
  },
];

const input = (projects: HomeProjectInput[]) => ({
  viewerId: 'ana',
  projects,
  activity: [],
  hasCalendar: false,
  online: [],
  now: NOW,
});

const web = (extra: Partial<HomeProjectInput> = {}): HomeProjectInput => ({
  project: project('WEB', ProjectRole.OWNER),
  issues: [],
  timeline: [],
  sprints: [],
  releases: [],
  activity: new Array(14).fill(0),
  ...extra,
});

describe('computeHome', () => {
  it('puts my coming week on the agenda: tickets, sprint ends, releases', () => {
    const home = computeHome(
      input([
        web({
          issues: [
            issue('MINE', C.TODO, { assignee: ana, dueDate: '2026-10-17' }),
            issue('FOLLOWED', C.TODO, {
              watchers: [ana],
              dueDate: '2026-10-15',
            }),
            issue('NOT_MINE', C.TODO, { assignee: bob, dueDate: '2026-10-16' }),
            issue('LATER', C.TODO, { assignee: ana, dueDate: '2026-10-30' }),
            issue('DONE', C.DONE, { assignee: ana, dueDate: '2026-10-16' }),
          ],
          sprints: [
            {
              id: 's',
              name: 'Sprint 7',
              status: SprintStatus.ACTIVE,
              startDate: '2026-10-08',
              endDate: '2026-10-21',
            } as SprintReadModel,
          ],
          releases: [
            {
              id: 'r',
              name: '2.4',
              status: ReleaseStatus.PLANNED,
              targetDate: '2026-10-20',
            } as ReleaseReadModel,
          ],
        }),
      ]),
    );
    expect(home.agenda.map((a) => [a.day, a.kind, a.title])).toEqual([
      ['2026-10-15', 'ISSUE', 'Ticket FOLLOWED'],
      ['2026-10-17', 'ISSUE', 'Ticket MINE'],
      ['2026-10-20', 'RELEASE', '2.4'],
      ['2026-10-21', 'SPRINT_END', 'Sprint 7'],
    ]);
  });

  it("counts the team's week and mine, and my streak", () => {
    const closed = [
      ['A', '2026-10-15T10:00:00Z', 'ana'],
      ['B', '2026-10-14T10:00:00Z', 'ana'],
      ['C', '2026-10-13T10:00:00Z', 'ana'],
      ['D', '2026-10-11T10:00:00Z', 'ana'],
      ['E', '2026-10-05T10:00:00Z', 'bob'],
    ] as const;
    const home = computeHome(
      input([
        web({
          issues: closed.map(([id]) => issue(id, C.DONE)),
          timeline: closed.flatMap(([id, at, who]) => done(id, at, who)),
        }),
      ]),
    );
    expect(home.team.perDay).toHaveLength(14);
    expect(home.team.perDay[13]).toBe(1);
    expect(home.team).toMatchObject({ thisWeek: 4, lastWeek: 1 });
    // Today, yesterday and the day before: three in a row (the 12th breaks it).
    expect(home.me).toEqual({ thisWeek: 4, lastWeek: 0, streak: 3 });
  });

  it('suggests what to do, and keeps a guest out of project-wide views', () => {
    const home = computeHome(
      input([
        web({
          issues: [
            issue('U1', C.TODO),
            issue('U2', C.TODO, { labels: ['propuesta'] }),
            issue('Q1', C.QA, { assignee: bob }),
          ],
        }),
        {
          ...web(),
          project: project('CLI', ProjectRole.GUEST),
          issues: [issue('X', C.TODO)],
        },
      ]),
    );
    expect(
      home.suggestions.map((s) => [s.kind, s.projectKey, s.count]),
    ).toEqual([
      ['UNASSIGNED', 'WEB', 2],
      ['QA_WAITING', 'WEB', 1],
      ['PROPOSALS', 'WEB', 1],
    ]);
    // Only the project seen whole has a card.
    expect(home.projects.map((p) => p.projectId)).toEqual(['web']);
    expect(home.projects[0]).toMatchObject({ open: 3, overdue: 0 });
    expect(home.firstSteps).toEqual({
      project: true,
      invited: true,
      ticket: false,
      calendar: false,
    });
  });

  it('lists the last 14 days, oldest first', () => {
    const days = lastDays(NOW);
    expect(days).toHaveLength(14);
    expect(days[0]).toBe('2026-10-02');
    expect(days[13]).toBe('2026-10-15');
  });
});