nardol 0.0.3

Simple framework that provides structure to data sent and received from network.
Documentation 
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use chrono::{DateTime, NaiveDateTime, Utc};

use crate::bytes::Bytes;
use crate::error::{Error, ErrorKind};

impl TryFrom<Bytes> for usize {
    type Error = Error;

    fn try_from(value: Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to usize (at least 8).
        if None == value.get(7) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<Bytes> for usize requires Bytes of length of 8 bytes."
                        .to_string(),
                ),
            ));
        }

        let mut arr = [0_u8; 8];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(usize::from_be_bytes(arr))
    }
}

impl TryFrom<&Bytes> for usize {
    type Error = Error;

    fn try_from(value: &Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to usize (at least 8).
        if None == value.get(7) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<&Bytes> for usize requires Bytes of length of 8 bytes."
                        .to_string(),
                ),
            ));
        }

        let mut arr = [0_u8; 8];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(usize::from_be_bytes(arr))
    }
}

impl TryFrom<Bytes> for u8 {
    type Error = Error;

    fn try_from(value: Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to u8 (at least 1).
        if None == value.get(0) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some("impl TryFrom<Bytes> for u8 requires Bytes of length of 1 byte.".to_string()),
            ));
        }

        let mut arr = [0_u8; 1];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(u8::from_be_bytes(arr))
    }
}

impl TryFrom<&Bytes> for u8 {
    type Error = Error;

    fn try_from(value: &Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to u8 (at least 1).
        if None == value.get(0) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some("impl TryFrom<&Bytes> for u8 requires Bytes of length of 1 byte.".to_string()),
            ));
        }

        let mut arr = [0_u8; 1];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(u8::from_be_bytes(arr))
    }
}

impl TryFrom<Bytes> for u16 {
    type Error = Error;

    fn try_from(value: Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to u16 (at least 2).
        if None == value.get(1) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<Bytes> for u16 requires Bytes of length of 2 bytes.".to_string(),
                ),
            ));
        }
        let mut arr = [0_u8; 2];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(u16::from_be_bytes(arr))
    }
}

impl TryFrom<&Bytes> for u16 {
    type Error = Error;

    fn try_from(value: &Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to u32 (at least 4).
        if None == value.get(1) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<Bytes> for u16 requires Bytes of length of 2 bytes.".to_string(),
                ),
            ));
        }
        let mut arr = [0_u8; 2];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(u16::from_be_bytes(arr))
    }
}

impl TryFrom<Bytes> for u32 {
    type Error = Error;

    fn try_from(value: Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to u32 (at least 4).
        if None == value.get(3) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<Bytes> for u32 requires Bytes of length of 4 bytes.".to_string(),
                ),
            ));
        }

        let mut arr = [0_u8; 4];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(u32::from_be_bytes(arr))
    }
}

impl TryFrom<&Bytes> for u32 {
    type Error = Error;

    fn try_from(value: &Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to u32 (at least 4).
        if None == value.get(3) {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<Bytes> for u32 requires Bytes of length of 4 bytes.".to_string(),
                ),
            ));
        }

        let mut arr = [0_u8; 4];
        for (index, value) in value.0.iter().enumerate() {
            arr[index] = *value;
        }
        Ok(u32::from_be_bytes(arr))
    }
}

impl TryFrom<Bytes> for String {
    type Error = Error;

    fn try_from(value: Bytes) -> Result<Self, Self::Error> {
        let string = String::from_utf8_lossy(&value.0).into_owned();

        Ok(string)
    }
}

impl TryFrom<&Bytes> for String {
    type Error = Error;

    fn try_from(value: &Bytes) -> Result<Self, Self::Error> {
        let string = String::from_utf8_lossy(&value.0).into_owned();

        Ok(string)
    }
}

impl TryFrom<Bytes> for DateTime<Utc> {
    type Error = Error;

    fn try_from(value: Bytes) -> Result<Self, Self::Error> {
        // Checks if value has enough bytes to parse to DateTime<Utc> (at least 8).
        if value.get(7).is_none() {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<Bytes> for DateTime<Utc> requires Bytes of length of 8 bytes."
                        .to_string(),
                ),
            ));
        }

        let naive_datetime = NaiveDateTime::from_timestamp(usize::try_from(value)? as i64, 0);

        Ok(DateTime::from_utc(naive_datetime, Utc))
    }
}

impl TryFrom<&Bytes> for DateTime<Utc> {
    type Error = Error;

    fn try_from(value: &Bytes) -> Result<Self, Self::Error> {
        if value.get(7).is_none() {
            return Err(Error::new(
                ErrorKind::InvalidBufferSize,
                Some(
                    "impl TryFrom<&Bytes> for DateTime<Utc> requires Bytes of length of 8 bytes."
                        .to_string(),
                ),
            ));
        }

        let naive_datetime = NaiveDateTime::from_timestamp(usize::try_from(value)? as i64, 0);

        Ok(DateTime::from_utc(naive_datetime, Utc))
    }
}