hapi/hub/src/sync/teams.test.ts

import { describe, test, expect } from 'bun:test'
import { applyTeamStateDelta } from './teams'
import type { TeamState, TeamTask } from '@hapi/protocol/types'

const baseTeamState: TeamState = {
    teamName: 'test-team',
    members: [{ name: 'lead', status: 'active' }],
    tasks: [],
    messages: [],
    updatedAt: 1000
}

function getTasks(result: TeamState | null | undefined): TeamTask[] {
    expect(result).toBeTruthy()
    return result!.tasks ?? []
}

describe('applyTeamStateDelta - orphan TaskUpdate', () => {
    test('should skip inserting task without title (orphan TaskUpdate)', () => {
        const result = applyTeamStateDelta(baseTeamState, {
            tasks: [{ id: 'task-1', status: 'in_progress' } as any],
            updatedAt: 2000
        })

        expect(getTasks(result)).toEqual([])
    })

    test('should insert task when title is present (normal TaskCreate)', () => {
        const result = applyTeamStateDelta(baseTeamState, {
            tasks: [{ id: 'task-1', title: 'Do something', status: 'pending' }],
            updatedAt: 2000
        })

        const tasks = getTasks(result)
        expect(tasks).toHaveLength(1)
        expect(tasks[0]).toMatchObject({ title: 'Do something' })
    })

    test('should update existing task even without title (normal TaskUpdate)', () => {
        const stateWithTask: TeamState = {
            ...baseTeamState,
            tasks: [{ id: 'task-1', title: 'Do something', status: 'pending' }]
        }

        const result = applyTeamStateDelta(stateWithTask, {
            tasks: [{ id: 'task-1', status: 'completed' } as any],
            updatedAt: 2000
        })

        const tasks = getTasks(result)
        expect(tasks).toHaveLength(1)
        expect(tasks[0]).toMatchObject({ title: 'Do something', status: 'completed' })
    })

    test('should handle mixed: existing task update + orphan new task', () => {
        const stateWithTask: TeamState = {
            ...baseTeamState,
            tasks: [{ id: 'task-1', title: 'Existing task', status: 'pending' }]
        }

        const result = applyTeamStateDelta(stateWithTask, {
            tasks: [
                { id: 'task-1', status: 'in_progress' } as any,
                { id: 'task-2', status: 'completed' } as any,
            ],
            updatedAt: 2000
        })

        const tasks = getTasks(result)
        expect(tasks).toHaveLength(1)
        expect(tasks[0]).toMatchObject({ id: 'task-1', status: 'in_progress' })
    })
})