use clap::Parser;

#[derive(clap::Parser, Debug)]
#[clap(version = clap::crate_version!(), author = clap::crate_authors!("\n"))]
/// Hello Remember this is a feature
enum Command {
    Run {
        #[clap(long, short)]
        debug: bool,

        #[clap(long, short, arg_enum)]
        machine: Option<MachineType>,
    },

    Doc {
        #[clap(long, short, arg_enum)]
        machine: Option<MachineType>,
    },
}

#[derive(clap::ArgEnum, Debug, Clone)]
enum MachineType {
    X86,
    RISCV,
    ARM,
}

fn main() -> anyhow::Result<()> {
    let args = Command::parse();

    match args {
        Command::Run { debug, machine } => {
            let _dir = xshell::pushd("./ableos");

            let _debug_log: &[&str] = match debug {
                true => &["-D", "debug.log"],
                false => &[],
            };
            match machine.unwrap_or(MachineType::X86) {
                MachineType::X86 => {
                    xshell::cmd!("cargo run --release").run()?;
                }
                MachineType::ARM => {
                    xshell::cmd!("cargo build --release --target=json_targets/aarch64-ableos.json")
                        .run()?;
                    #[rustfmt::skip]
                    xshell::cmd!(
                        "qemu-system-aarch64
                        -machine virt
                        -m 1024M
                        -cpu cortex-a53
                        -kernel target/aarch64-ableos/release/ableos
                        -device virtio-keyboard
                        "
                    ).run()?;
                }
                MachineType::RISCV => {
                    xshell::cmd!("cargo build --release --target=riscv64gc-unknown-none-elf")
                        .run()?;
                    #[rustfmt::skip]
                    xshell::cmd!(
                        "qemu-system-riscv64
                            -machine virt
                            -cpu rv64
                            -smp 8
                            -m 128M
                            -bios src/arch/riscv/firmwear/opensbi-riscv64-generic-fw_jump.bin
                            -kernel target/riscv64gc-unknown-none-elf/release/ableos"
                        ).run()?;
                }
            }
        }

        Command::Doc { machine } => {
            let _dir = xshell::pushd("./ableos");

            match machine.unwrap_or(MachineType::X86) {
                MachineType::X86 => {
                    xshell::cmd!("cargo doc --open").run()?;
                }
                MachineType::ARM => {
                    xshell::cmd!("cargo doc --open --target=json_targets/aarch64-ableos.json")
                        .run()?;
                }
                MachineType::RISCV => {
                    xshell::cmd!("cargo doc --open --target=riscv64gc-unknown-none-elf").run()?;
                }
            }
        }
    }

    Ok(())
}