// ABOUTME: Unit-Tests für Bragi Property-Enums und Battery-Level-Konvertierung.
// ABOUTME: Testet BatteryStatus-Konvertierung und Promille-zu-Prozent-Umrechnung.

use corsairctl::bragi::properties::{battery_promille_to_percent, BatteryStatus, Property};

#[test]
fn battery_status_from_byte_discharging() {
    assert_eq!(BatteryStatus::from_byte(0x01), BatteryStatus::Discharging);
}

#[test]
fn battery_status_from_byte_charging_both_values() {
    // Sowohl 0x03 als auch 0x04 bedeuten "Charging"
    assert_eq!(BatteryStatus::from_byte(0x03), BatteryStatus::Charging);
    assert_eq!(BatteryStatus::from_byte(0x04), BatteryStatus::Charging);
}

#[test]
fn battery_status_from_byte_all_known_values() {
    assert_eq!(BatteryStatus::from_byte(0x00), BatteryStatus::Offline);
    assert_eq!(BatteryStatus::from_byte(0x01), BatteryStatus::Discharging);
    assert_eq!(BatteryStatus::from_byte(0x02), BatteryStatus::Low);
    assert_eq!(BatteryStatus::from_byte(0x03), BatteryStatus::Charging);
    assert_eq!(BatteryStatus::from_byte(0x04), BatteryStatus::Charging);
    assert_eq!(BatteryStatus::from_byte(0x05), BatteryStatus::FullyCharged);
}

#[test]
fn battery_status_unknown_value() {
    let status = BatteryStatus::from_byte(0xFF);
    assert!(matches!(status, BatteryStatus::Unknown(0xFF)));
}

#[test]
fn battery_status_labels() {
    assert_eq!(BatteryStatus::Offline.label(), "Offline");
    assert_eq!(BatteryStatus::Discharging.label(), "Discharging");
    assert_eq!(BatteryStatus::Low.label(), "Low");
    assert_eq!(BatteryStatus::Charging.label(), "Charging");
    assert_eq!(BatteryStatus::FullyCharged.label(), "Full");
    assert_eq!(BatteryStatus::Unknown(0xFF).label(), "Unknown");
}

#[test]
fn battery_status_is_charging() {
    assert!(BatteryStatus::Charging.is_charging());
    assert!(!BatteryStatus::Discharging.is_charging());
    assert!(!BatteryStatus::FullyCharged.is_charging());
    assert!(!BatteryStatus::Offline.is_charging());
}

#[test]
fn battery_promille_to_percent_full() {
    assert!((battery_promille_to_percent(1000) - 100.0).abs() < f32::EPSILON);
}

#[test]
fn battery_promille_to_percent_half() {
    assert!((battery_promille_to_percent(500) - 50.0).abs() < f32::EPSILON);
}

#[test]
fn battery_promille_to_percent_empty() {
    assert!((battery_promille_to_percent(0) - 0.0).abs() < f32::EPSILON);
}

#[test]
fn battery_promille_to_percent_fractional() {
    // 735 Promille = 73.5%
    assert!((battery_promille_to_percent(735) - 73.5).abs() < f32::EPSILON);
}

#[test]
fn property_ids_match_protocol() {
    assert_eq!(Property::BatteryLevel.id(), 0x0F);
    assert_eq!(Property::BatteryStatus.id(), 0x10);
    assert_eq!(Property::Brightness.id(), 0x02);
    assert_eq!(Property::Mode.id(), 0x03);
    assert_eq!(Property::VendorId.id(), 0x11);
    assert_eq!(Property::ProductId.id(), 0x12);
    assert_eq!(Property::AppFirmware.id(), 0x13);
    assert_eq!(Property::BuildFirmware.id(), 0x14);
    assert_eq!(Property::Sidetone.id(), 0x09);
}