use super::{Syscall, SyscallMeta, domains};

pub(crate) fn meta_for(syscall: Syscall) -> &'static SyscallMeta {
    for entry in domains::all_entries() {
        if entry.syscall == syscall {
            return &entry.meta;
        }
    }
    panic!("Missing SyscallMeta for {:?}", syscall);
}

impl Syscall {
    pub fn from_u32(id: u32) -> Option<Self> {
        match id {
            0x0001 => Some(Self::SystemHasCart),
            0x0002 => Some(Self::SystemRunCart),
            0x1001 => Some(Self::GfxClear),
            0x1002 => Some(Self::GfxFillRect),
            0x1003 => Some(Self::GfxDrawLine),
            0x1004 => Some(Self::GfxDrawCircle),
            0x1005 => Some(Self::GfxDrawDisc),
            0x1006 => Some(Self::GfxDrawSquare),
            0x1007 => Some(Self::GfxSetSprite),
            0x1008 => Some(Self::GfxDrawText),
            0x1010 => Some(Self::GfxClear565),
            0x3001 => Some(Self::AudioPlaySample),
            0x3002 => Some(Self::AudioPlay),
            0x4001 => Some(Self::FsOpen),
            0x4002 => Some(Self::FsRead),
            0x4003 => Some(Self::FsWrite),
            0x4004 => Some(Self::FsClose),
            0x4005 => Some(Self::FsListDir),
            0x4006 => Some(Self::FsExists),
            0x4007 => Some(Self::FsDelete),
            0x5001 => Some(Self::LogWrite),
            0x5002 => Some(Self::LogWriteTag),
            0x6001 => Some(Self::AssetLoad),
            0x6002 => Some(Self::AssetStatus),
            0x6003 => Some(Self::AssetCommit),
            0x6004 => Some(Self::AssetCancel),
            0x6101 => Some(Self::BankInfo),
            0x6102 => Some(Self::BankSlotInfo),
            _ => None,
        }
    }

    pub fn args_count(&self) -> usize {
        super::meta_for(*self).arg_slots as usize
    }

    pub fn results_count(&self) -> usize {
        super::meta_for(*self).ret_slots as usize
    }

    pub fn name(&self) -> &'static str {
        match self {
            Self::SystemHasCart => "SystemHasCart",
            Self::SystemRunCart => "SystemRunCart",
            Self::GfxClear => "GfxClear",
            Self::GfxFillRect => "GfxFillRect",
            Self::GfxDrawLine => "GfxDrawLine",
            Self::GfxDrawCircle => "GfxDrawCircle",
            Self::GfxDrawDisc => "GfxDrawDisc",
            Self::GfxDrawSquare => "GfxDrawSquare",
            Self::GfxSetSprite => "GfxSetSprite",
            Self::GfxDrawText => "GfxDrawText",
            Self::GfxClear565 => "GfxClear565",
            Self::AudioPlaySample => "AudioPlaySample",
            Self::AudioPlay => "AudioPlay",
            Self::FsOpen => "FsOpen",
            Self::FsRead => "FsRead",
            Self::FsWrite => "FsWrite",
            Self::FsClose => "FsClose",
            Self::FsListDir => "FsListDir",
            Self::FsExists => "FsExists",
            Self::FsDelete => "FsDelete",
            Self::LogWrite => "LogWrite",
            Self::LogWriteTag => "LogWriteTag",
            Self::AssetLoad => "AssetLoad",
            Self::AssetStatus => "AssetStatus",
            Self::AssetCommit => "AssetCommit",
            Self::AssetCancel => "AssetCancel",
            Self::BankInfo => "BankInfo",
            Self::BankSlotInfo => "BankSlotInfo",
        }
    }
}