import { mkdtemp, readFile, rm } from 'node:fs/promises'

import { tmpdir } from 'node:os'

import { join } from 'node:path'

import { spawnSync } from 'node:child_process'

import { describe, it, expect } from 'vitest'

function runCli(args: string[], home: string) {

return spawnSync(process.execPath, ['--import', 'tsx', 'src/cli.ts', ...args], {

cwd: process.cwd(),

env: {

...process.env,

HOME: home,

},

encoding: 'utf-8',

})

}

describe('codeburn plan command', () => {

it('persists plan set and clears on reset', async () => {

const home = await mkdtemp(join(tmpdir(), 'codeburn-cli-plan-'))

try {

const setResult = runCli(['plan', 'set', 'claude-max'], home)

expect(setResult.status).toBe(0)

const configPath = join(home, '.config', 'codeburn', 'config.json')

const configRaw = await readFile(configPath, 'utf-8')

const config = JSON.parse(configRaw) as { plan?: { id?: string; monthlyUsd?: number } }

expect(config.plan?.id).toBe('claude-max')

expect(config.plan?.monthlyUsd).toBe(200)

const resetResult = runCli(['plan', 'reset'], home)

expect(resetResult.status).toBe(0)

const afterResetRaw = await readFile(configPath, 'utf-8')

const afterReset = JSON.parse(afterResetRaw) as { plan?: unknown }

expect(afterReset.plan).toBeUndefined()

} finally {

await rm(home, { recursive: true, force: true })

}

})

it('shows invalid reset-day value in error output', async () => {

const home = await mkdtemp(join(tmpdir(), 'codeburn-cli-plan-'))

try {

const result = runCli(['plan', 'set', 'claude-max', '--reset-day', '99'], home)

expect(result.status).toBe(1)

expect(result.stderr).toContain('--reset-day must be an integer from 1 to 28; got 99.')

} finally {

await rm(home, { recursive: true, force: true })

}

})

})