// ColorCast logic tests — pure module (no Vela APIs)
'use strict'
const assert = require('assert/strict')
const cast = require('/tmp/vela-colorcast/src/common/colorcast.js')

let passed = 0
function test(name, fn) {
  try { fn(); passed++; console.log('  ok -', name) }
  catch (e) { console.error('  FAIL -', name, '\n   ', e.message); process.exitCode = 1 }
}

console.log('colorcast tests')

test('nextColor cycles RED -> GREEN', () => {
  const n = cast.nextColor(-1) // initial state: nothing cast yet
  assert.equal(n.name, 'RED')
  assert.equal(cast.nextColor(n.index).name, 'GREEN')
})

test('full cycle RED, GREEN, BLUE, YELLOW, wraps to RED', () => {
  const names = []
  let idx = -1
  for (let i = 0; i < 5; i++) {
    const n = cast.nextColor(idx)
    idx = n.index
    names.push(n.name)
  }
  assert.deepEqual(names, ['RED', 'GREEN', 'BLUE', 'YELLOW', 'RED'])
})

test('payload is 3 bytes RGB matching the color', () => {
  const blue = cast.COLORS[2]
  const p = cast.payload(blue)
  assert.equal(p.byteLength, 3)
  const v = new Uint8Array(p)
  assert.deepEqual([...v], [blue.r, blue.g, blue.b])
})

test('UUIDs match the Android companion', () => {
  assert.equal(cast.SERVICE_UUID, '0000fee7-0000-1000-8000-00805f9b34fb')
  assert.equal(cast.CHAR_UUID, '0000fee8-0000-1000-8000-00805f9b34fb')
})

test('advertised name matches Android NAME constant', () => {
  assert.equal(cast.ADVERTISED_NAME, 'ILIAS-COLOR')
})

test('every color has r/g/b in range', () => {
  for (const c of cast.COLORS) {
    for (const k of ['r', 'g', 'b']) {
      assert.ok(c[k] >= 0 && c[k] <= 255, c.name + '.' + k)
    }
  }
})

console.log(process.exitCode ? 'FAILED' : 'ALL PASSED (' + passed + ')')