inlyne 0.3.2

Introducing Inlyne, a GPU powered yet browserless tool to help you quickly view markdown files in the blink of an eye.
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use std::fs::read_to_string;
use std::path::Path;

use super::ThemeType;
use crate::{color, keybindings::Keybindings};

use anyhow::Context;
use serde::Deserialize;

#[derive(Deserialize, Debug, PartialEq, Eq, Default, Clone)]
#[serde(rename_all = "kebab-case")]
pub struct FontOptions {
    #[serde(default)]
    pub regular_font: Option<String>,
    #[serde(default)]
    pub monospace_font: Option<String>,
}

#[derive(Deserialize, Debug)]
#[serde(rename_all = "kebab-case")]
pub struct OptionalTheme {
    #[serde(default)]
    pub text_color: Option<u32>,
    #[serde(default)]
    pub background_color: Option<u32>,
    #[serde(default)]
    pub code_color: Option<u32>,
    #[serde(default)]
    pub code_block_color: Option<u32>,
    #[serde(default)]
    pub quote_block_color: Option<u32>,
    #[serde(default)]
    pub link_color: Option<u32>,
    #[serde(default)]
    pub select_color: Option<u32>,
    #[serde(default)]
    pub checkbox_color: Option<u32>,
    #[serde(default)]
    pub code_highlighter: Option<color::SyntaxTheme>,
}

impl OptionalTheme {
    pub fn merge(self, other: color::Theme) -> color::Theme {
        color::Theme {
            text_color: self.text_color.unwrap_or(other.text_color),
            background_color: self.background_color.unwrap_or(other.background_color),
            code_color: self.code_color.unwrap_or(other.code_color),
            code_block_color: self.code_block_color.unwrap_or(other.code_block_color),
            quote_block_color: self.quote_block_color.unwrap_or(other.quote_block_color),
            link_color: self.link_color.unwrap_or(other.link_color),
            select_color: self.select_color.unwrap_or(other.select_color),
            checkbox_color: self.checkbox_color.unwrap_or(other.checkbox_color),
            code_highlighter: self.code_highlighter.unwrap_or(other.code_highlighter),
        }
    }
}

#[derive(Deserialize, Debug)]
pub struct LinesToScroll(pub f32);

impl From<LinesToScroll> for f32 {
    fn from(value: LinesToScroll) -> Self {
        value.0
    }
}

impl Default for LinesToScroll {
    fn default() -> Self {
        Self(3.0)
    }
}

#[derive(Deserialize, Debug, Default)]
pub struct KeybindingsSection {
    pub base: Option<Keybindings>,
    pub extra: Option<Keybindings>,
}

#[derive(Deserialize, Debug, Default)]
#[serde(default, rename_all = "kebab-case")]
pub struct Config {
    pub theme: Option<ThemeType>,
    pub scale: Option<f32>,
    pub page_width: Option<f32>,
    pub lines_to_scroll: LinesToScroll,
    pub light_theme: Option<OptionalTheme>,
    pub dark_theme: Option<OptionalTheme>,
    pub font_options: Option<FontOptions>,
    pub keybindings: KeybindingsSection,
}

impl Config {
    pub fn load_from_file(path: &Path) -> anyhow::Result<Self> {
        let config_content = read_to_string(path).context(format!(
            "Failed to read configuration file at '{}'",
            path.display()
        ))?;

        Ok(toml::from_str(&config_content)?)
    }

    pub fn load_from_system() -> anyhow::Result<Self> {
        let config_dir =
            dirs::config_dir().context("Failed to find the configuration directory")?;

        let config_path = config_dir.join("inlyne").join("inlyne.toml");

        if !config_path.is_file() {
            return Ok(Self::default());
        }

        Self::load_from_file(&config_path)
    }
}