import { test } from 'node:test'
import assert from 'node:assert/strict'

import { parseArgs, loadConfig } from '../src/config.mjs'

test('parseArgs handles long flags, =value and short flags', () => {
  const out = parseArgs(['--goal', 'g.json', '--iterations=7', '-C', '/tmp', '--no-color', '--dry-run'])
  assert.equal(out.goal, 'g.json')
  assert.equal(out.iterations, 7)
  assert.equal(out.project, '/tmp')
  assert.equal(out.color, false)
  assert.equal(out.dryRun, true)
})

test('parseArgs coerces numeric flags', () => {
  const out = parseArgs(['--port', '8123', '--context-warn-tokens', '90000'])
  assert.equal(out.port, 8123)
  assert.equal(out.contextWarnTokens, 90000)
})

test('parseArgs rejects unknown flags', () => {
  assert.throws(() => parseArgs(['--nope', '1']), /Unknown option/)
})

test('loadConfig opens the launcher when no goal is given', () => {
  const config = loadConfig(['--project', '/tmp'])
  assert.equal(config.launcher, true)
  assert.equal(config.goal, '')
  assert.equal(loadConfig(['--goal-text', 'x']).launcher, undefined)
})

test('loadConfig validates session-mode and hitl', () => {
  assert.throws(() => loadConfig(['--goal-text', 'x', '--session-mode', 'wat']), /session-mode/)
  assert.throws(() => loadConfig(['--goal-text', 'x', '--hitl', 'wat']), /hitl/)
})

test('parseArgs handles --shared-context / --no-shared-context', () => {
  assert.equal(parseArgs(['--shared-context']).sharedContext, true)
  assert.equal(parseArgs(['--no-shared-context']).sharedContext, false)
})

test('loadConfig defaults to fresh sessions and maps the legacy session-mode', () => {
  const defaults = loadConfig(['--goal-text', 'x'])
  assert.equal(defaults.sharedContext, false)
  assert.equal(defaults.sessionMode, 'fresh')

  const shared = loadConfig(['--goal-text', 'x', '--shared-context'])
  assert.equal(shared.sharedContext, true)
  assert.equal(shared.sessionMode, 'continue')

  assert.equal(loadConfig(['--goal-text', 'x', '--session-mode', 'continue']).sharedContext, true)
  assert.equal(loadConfig(['--goal-text', 'x', '--session-mode', 'fresh']).sharedContext, false)
})

test('loadConfig: pre-flight confirm is on by default, --yes/--no-confirm disable it', () => {
  assert.equal(loadConfig(['--goal-text', 'x']).confirm, true)
  assert.equal(loadConfig(['--goal-text', 'x', '--no-confirm']).confirm, false)
  assert.equal(loadConfig(['--goal-text', 'x', '--yes']).confirm, false)
})