import test from 'node:test'
import assert from 'node:assert/strict'
import { readFile } from 'node:fs/promises'

import {
	SCAN_BROADCAST_ACTION,
	SCAN_BROADCAST_ACTIONS,
	SCAN_BROADCAST_EXTRA,
	isDuplicateScan,
	normalizeScanValue,
	resetScanDeduplication,
	startScanBroadcast,
	stopScanBroadcast
} from '../src/utils/scan-broadcast.js'

test('scanner uses the confirmed PDA broadcast contract', () => {
	assert.equal(SCAN_BROADCAST_ACTION, 'android.intent.action.SCANRESULT')
	assert.equal(SCAN_BROADCAST_EXTRA, 'value')
	assert.deepEqual(SCAN_BROADCAST_ACTIONS, [
		'android.intent.action.SCANRESULT',
		'com.android.server.scannerservice.broadcast',
		'com.sunmi.scanner.ACTION_DATA_CODE_RECEIVED'
	])
	assert.equal(normalizeScanValue('  EL-38201\r\n'), 'EL-38201')
	assert.equal(normalizeScanValue(null), '')
})

test('scanner source keeps receiver diagnostics before page routing', async () => {
	const source = await readFile(new URL('../src/utils/scan-broadcast.js', import.meta.url), 'utf8')
	assert.match(source, /\[Overseas PDA broadcast\] received/)
	assert.match(source, /rawValue[\s\S]*value/)
	assert.match(source, /ignored duplicate/)
	assert.match(source, /receive failed/)
	assert.match(source, /receiver registered/)
	assert.match(source, /registration failed/)
	assert.match(source, /registeredActivity\.getPackageName\(\)/)
})

test('scanner drops only immediate duplicate broadcasts', () => {
	resetScanDeduplication()
	assert.equal(isDuplicateScan('EL-38201', 1000), false)
	assert.equal(isDuplicateScan('EL-38201', 1050), true)
	assert.equal(isDuplicateScan('EL-38201', 1100), false)
	assert.equal(isDuplicateScan('EL-38202', 1110), false)
})

test('an old page disposer cannot unregister the receiver owned by the newly shown page', () => {
	const registered = []
	const unregistered = []
	class IntentFilter { addAction(action) { this.action = action } }
	const activity = {
		registerReceiver(value) { registered.push(value) },
		unregisterReceiver(value) { unregistered.push(value) },
		getPackageName() { return 'com.baiyuelogistics.pda.overseas' }
	}
	globalThis.plus = { android: {
		runtimeMainActivity: () => activity,
		importClass(name) {
			if (name === 'android.content.IntentFilter') return IntentFilter
			if (name === 'android.os.Build') return { VERSION: { SDK_INT: 32 } }
			return name
		},
		implements: (_name, implementation) => implementation
	} }
	try {
		const stopFirst = startScanBroadcast({ onScan() {} })
		const first = registered[0]
		const stopSecond = startScanBroadcast({ onScan() {} })
		const second = registered[1]
		assert.deepEqual(unregistered, [first])

		stopFirst()
		assert.deepEqual(unregistered, [first, first])
		assert.ok(!unregistered.includes(second))

		stopSecond()
		assert.equal(unregistered.at(-1), second)
	} finally {
		stopScanBroadcast()
		delete globalThis.plus
	}
})