traceviewer 0.1.1

Run a command and inspect its logs in a scrollable terminal viewer
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use std::process::ExitStatus;

#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub(crate) enum Stream {
    Stdout,
    Stderr,
}

impl Stream {
    pub(crate) fn indicator(self) -> char {
        match self {
            Self::Stdout => '|',
            Self::Stderr => '!',
        }
    }
}

#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub(crate) enum Level {
    Trace,
    Debug,
    Info,
    Warn,
    Error,
    Unknown,
}

impl Level {
    pub(crate) fn label(self) -> &'static str {
        match self {
            Self::Trace => "TRACE",
            Self::Debug => "DEBUG",
            Self::Info => "INFO",
            Self::Warn => "WARN",
            Self::Error => "ERROR",
            Self::Unknown => "",
        }
    }

    pub(crate) fn severity(self) -> u8 {
        match self {
            Self::Error => 5,
            Self::Warn => 4,
            Self::Info => 3,
            Self::Debug => 2,
            Self::Trace => 1,
            Self::Unknown => 0,
        }
    }
}

#[derive(Clone, Debug)]
pub(crate) struct LogEntry {
    pub(crate) timestamp: Option<String>,
    pub(crate) level: Level,
    pub(crate) parsed: bool,
    pub(crate) target: Option<String>,
    pub(crate) spans: Vec<String>,
    pub(crate) message: String,
    pub(crate) stream: Stream,
}

#[derive(Debug)]
pub(crate) enum AppEvent {
    Line(Stream, String),
    ProcessExited(ExitStatus),
    ReaderFailed(Stream, String),
}