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#![allow(non_upper_case_globals)]

use bitflags::bitflags;

pub enum Register {
    BcdTypeCRevL = 0x06,
    BcdTypeCRevH = 0x07,
    BcdUsbPDRevL = 0x08,
    BcdUsbPDRevH = 0x09,
    DeviceCapabHigh = 0x0A,
    AlertStatus1 = 0x0B,
    AlertStatus1Mask = 0x0C,
    PortStatus0 = 0x0D,
    PortStatus1 = 0x0E,
    TypeCMonitoringStatus0 = 0x0F,
    TypeCMonitoringStatus1 = 0x10,
    CCStatus = 0x11,
    CCHWFaultStatus0 = 0x12,
    CCHWFaultStatus1 = 0x13,
    PDTypeCStatus = 0x14,
    TypeCStatus = 0x15,
    PRTStatus = 0x16,
    //0x17-0x19, Reserved
    PDCommandCtrl = 0x1A,
    //0x1B-0x1F, Reserved
    MonitoringCtrl0 = 0x20,
    //0x21, Reserved
    MonitoringCtrl2 = 0x22,
    ResetCtrl = 0x23,
    //0x24, Reserved
    VbusDischargeTimeCtrl = 0x25,
    VbusDischargeCtrl = 0x26,
    VbusCtrl = 0x27,
    //0x28, Reserved
    PEFSM = 0x29,
    //0x2B, Reserved
    //0x2C, Reserved
    GpioSWGpio = 0x2D,
    //0x2E, Reserved
    DeviceId = 0x2F,
    //0x30, Reserved
    RXHeaderL = 0x31,
    RXHeaderH = 0x32,
    RXDataObj = 0x33,//4 bytes
    TXHeaderL = 0x51,
    TXHeaderH = 0x52,
    //0x53-0x6F, Reserved
    DPMPDONumb = 0x70,
    //0x71-0x84, Reserved
    DPMSNKPDO1 = 0x85,//4 bytes
    DPMSNKPDO2 = 0x89,//4 bytes
    DPMSNKPDO3 = 0x8D,//4 bytes
    RDORegStatus = 0x91,//4 bytes
}

bitflags! {
    pub struct AlertMask: u8 {
        const PortStatus            = 0b0100_0000;
        const TypeCMonitoringStatus = 0b0010_0000;
        const CCFaultStatus         = 0b0001_0000;
        const PRTStatus             = 0b0000_0010;

        const _Default = Self::PortStatus.bits | Self::TypeCMonitoringStatus.bits | Self::PRTStatus.bits;
    }
}

impl Default for AlertMask {
    fn default() -> Self {
        AlertMask::_Default
    }
}

bitflags! {
    pub struct Alert: u8 {
        const PortStatus            = 0b0100_0000;
        const TypeCMonitoringStatus = 0b0010_0000;
        const CCHWFaultStatus       = 0b0001_0000;
        const PDTypeCStatus         = 0b0000_1000;
        const PRTStatus             = 0b0000_0010;

        const _Mask = Self::PortStatus.bits
            | Self::TypeCMonitoringStatus.bits
            | Self::CCHWFaultStatus.bits
            | Self::PDTypeCStatus.bits
            | Self::PRTStatus.bits;
    }
}

impl Alert {
    pub(crate) fn from_masked_bits(bits: u8) -> Alert {
        // Mask to ignore reserved/undocumented bits
        Self::from_bits(bits & Self::_Mask.bits).unwrap()
    }
}