rpk 0.2.2

A lightweight, cross-platform cli package manager.
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//! Contextual information.

use std::{fmt, path::PathBuf};

use anyhow::Error;
use serde::{Deserialize, Serialize};
pub use yansi::Color;
use yansi::Paint;

#[derive(Debug, Clone, Default, PartialEq, Eq, Deserialize, Serialize)]
pub struct Context {
    /// The version of the application.
    pub version: String,

    /// The location of the config file.
    pub config_file: PathBuf,

    /// The location of the configuration directory.
    pub config_dir: PathBuf,

    /// The location of the cache directory.
    pub cache_dir: PathBuf,

    /// The location of the data directory.
    pub data_dir: PathBuf,

    /// The location of the binary directory.
    pub bin_dir: PathBuf,

    /// The location of the lock file.
    #[serde(skip)]
    pub lock_file: PathBuf,

    #[serde(skip)]
    /// The requested verbosity of output.
    pub verbosity: Verbosity,
}

/// The requested verbosity of output.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd)]
pub enum Verbosity {
    Quiet,
    Normal,
    Verbose,
}

impl Default for Verbosity {
    fn default() -> Self {
        Self::Normal
    }
}

impl Context {
    pub fn log_header(&self, prefix: &str, msg: impl fmt::Display) {
        if self.verbosity >= Verbosity::Normal {
            self.log_header_impl(prefix, msg);
        }
    }

    pub fn log_header_v(&self, prefix: &str, msg: impl fmt::Display) {
        if self.verbosity >= Verbosity::Verbose {
            self.log_header_impl(prefix, msg);
        }
    }

    fn log_header_impl(&self, prefix: &str, msg: impl fmt::Display) {
        eprintln!("{} {}", Paint::magenta(prefix).bold(), msg);
    }

    pub fn log_status(&self, prefix: &str, msg: impl fmt::Display) {
        if self.verbosity >= Verbosity::Normal {
            self.log_impl(Color::Cyan, prefix, msg);
        }
    }

    pub fn log_status_v(&self, prefix: &str, msg: impl fmt::Display) {
        if self.verbosity >= Verbosity::Verbose {
            self.log_impl(Color::Cyan, prefix, msg);
        }
    }

    pub fn log_warning(&self, prefix: &str, msg: impl fmt::Display) {
        if self.verbosity >= Verbosity::Normal {
            self.log_impl(Color::Yellow, prefix, msg);
        }
    }

    pub fn log_warning_v(&self, prefix: &str, msg: impl fmt::Display) {
        if self.verbosity >= Verbosity::Verbose {
            self.log_impl(Color::Yellow, prefix, msg);
        }
    }

    fn log_impl(&self, color: Color, prefix: &str, msg: impl fmt::Display) {
        eprintln!(
            "{} {}",
            Paint::new(format!("{prefix: >12}")).fg(color).bold(),
            msg
        );
    }
}

pub fn log_error(err: &Error) {
    let pretty = prettyify_error(err);
    eprintln!("\n{} {}", Paint::red("error:").bold(), pretty);
}

pub fn log_error_as_warning(err: &Error) {
    let pretty = prettyify_error(err);
    eprintln!("\n{} {}", Paint::yellow("warning:").bold(), pretty);
}

fn prettyify_error(err: &Error) -> String {
    err.chain()
        .map(|c| c.to_string())
        .collect::<Vec<_>>()
        .join("\n  due to: ")
}