package com.peachpasswords.sync

import org.junit.Assert.assertEquals
import org.junit.Assert.assertThrows
import org.junit.Test

class PairedDeviceAliasTest {
    private val device = PairedDevice(
        deviceId = "phone-1",
        deviceName = "Pixel",
        longTermPublicKeyHex = "a".repeat(64),
        pairedAt = 1,
    )

    @Test
    fun `rename stores a trimmed local alias without changing peer identity`() {
        val renamed = withLocalAlias(listOf(device), device.deviceId, "  Travel phone  ").single()

        assertEquals("Travel phone", renamed.localAlias)
        assertEquals(device.deviceName, renamed.deviceName)
        assertEquals(device.longTermPublicKeyHex, renamed.longTermPublicKeyHex)
    }

    @Test
    fun `rename rejects blank oversized and unknown aliases`() {
        assertThrows(IllegalArgumentException::class.java) {
            withLocalAlias(listOf(device), device.deviceId, " ")
        }
        assertThrows(IllegalArgumentException::class.java) {
            withLocalAlias(listOf(device), device.deviceId, "x".repeat(65))
        }
        assertThrows(IllegalArgumentException::class.java) {
            withLocalAlias(listOf(device), "missing", "Phone")
        }
    }
}