// ABOUTME: Formatierung für Plain-Text und Waybar-JSON Output.
// ABOUTME: Konvertiert Gerätedaten in lesbaren Text oder Waybar-kompatibles JSON.

use crate::bragi::properties::BatteryStatus;

/// Formatiert Batterie-Informationen als Plain-Text.
pub fn format_battery(level: f32, status: &BatteryStatus) -> String {
    format!("Battery: {level:.0}% ({status})", status = status.label())
}

/// Formatiert LED-Helligkeit als Plain-Text.
pub fn format_brightness(value: u16) -> String {
    let percent = value as f32 / 10.0;
    format!("LED Brightness: {value}/1000 ({percent:.0}%)")
}

/// Formatiert Geräteinformationen als Plain-Text.
pub fn format_info(vid: u16, pid: u16, fw_app: u16, fw_build: u16) -> String {
    format!(
        "Vendor ID:  0x{vid:04X}\n\
         Product ID: 0x{pid:04X}\n\
         Firmware:   {fw_app}.{fw_build}"
    )
}

/// Formatiert Waybar-kompatibles JSON.
///
/// Waybar erwartet: {"text": "...", "tooltip": "...", "class": "...", "percentage": N}
pub fn format_waybar_json(level: f32, status: &BatteryStatus) -> String {
    let icon = status.icon();
    let label = status.label();
    let percentage = level.round() as u32;

    let class = match status {
        BatteryStatus::Charging | BatteryStatus::FullyCharged => "charging",
        BatteryStatus::Low => "low",
        BatteryStatus::Discharging if level <= 15.0 => "critical",
        BatteryStatus::Discharging if level <= 30.0 => "warning",
        BatteryStatus::Discharging => "normal",
        BatteryStatus::Offline => "offline",
        BatteryStatus::Unknown(_) => "unknown",
    };

    let json = serde_json::json!({
        "text": format!("{icon} {percentage}%"),
        "tooltip": format!("HS80: {percentage}% — {label}"),
        "class": class,
        "percentage": percentage,
    });

    serde_json::to_string(&json).expect("JSON-Serialisierung sollte nicht fehlschlagen")
}

/// Formatiert Sidetone-Level als Plain-Text.
pub fn format_sidetone(level: i64) -> String {
    format!("Sidetone: {level}/23")
}