use std::{fmt::Display, path::PathBuf, process::Command};
use winreg::{RegKey, enums::HKEY_LOCAL_MACHINE};

#[derive(Default, Debug, PartialEq, Eq)]
pub enum Platform {
    #[default]
    Steam,
    Rockstar,
    Epic,
}

impl Display for Platform {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let x = match self {
            Self::Steam => "Steam",
            Self::Rockstar => "Rockstar Games",
            Self::Epic => "Epic Games",
        };
        write!(f, "{x}")
    }
}

#[derive(Default)]
pub struct Launch {
    pub selected: Platform,
}

pub fn launch(platform: &Platform) {
    match platform {
        Platform::Steam => {
            let _ = open::that_detached("steam://run/3240220");
        }
        Platform::Rockstar => {
            let hklm = RegKey::predef(HKEY_LOCAL_MACHINE);
            let Ok(gta_v_enhanced) =
                hklm.open_subkey(r"SOFTWARE\WOW6432Node\Rockstar Games\GTAV Enhanced")
            else {
                return;
            };
            let Ok(install_folder): Result<String, std::io::Error> =
                gta_v_enhanced.get_value("InstallFolder")
            else {
                return;
            };
            let mut play_gtav_path = PathBuf::from(install_folder);
            play_gtav_path.push("PlayGTAV.exe");
            let _ = Command::new(play_gtav_path).spawn();
        }
        Platform::Epic => {
            let _ = open::that_detached(
                "com.epicgames.launcher://apps/331226ba7c944720baa99103cb1fe80c?action=launch&silent=true",
            );
        }
    }
}