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// yt - A fully featured command line YouTube client
//
// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
use crate::config::{DownloadConfig, PathsConfig, SelectConfig, WatchConfig};
use super::{
default::{create_path, download, paths, select, update, watch},
Config, UpdateConfig,
};
use std::{fs::read_to_string, path::PathBuf};
use anyhow::{Context, Result};
use bytes::Bytes;
macro_rules! get {
($default:path, $config:expr, $key_one:ident, $($keys:ident),*) => {
{
let maybe_value = get!{@option $config, $key_one, $($keys),*};
if let Some(value) = maybe_value {
value
} else {
$default().to_owned()
}
}
};
(@option $config:expr, $key_one:ident, $($keys:ident),*) => {
if let Some(key) = $config.$key_one.clone() {
get!{@option key, $($keys),*}
} else {
None
}
};
(@option $config:expr, $key_one:ident) => {
$config.$key_one
};
(@path_if_none $config:expr, $option_default:expr, $default:path, $key_one:ident, $($keys:ident),*) => {
{
let maybe_download_dir: Option<PathBuf> =
get! {@option $config, $key_one, $($keys),*};
let down_dir = if let Some(dir) = maybe_download_dir {
PathBuf::from(dir)
} else {
if let Some(path) = $option_default {
path
} else {
$default()
.with_context(|| format!("Failed to get default path for: '{}.{}'", stringify!($key_one), stringify!($($keys),*)))?
}
};
create_path(down_dir)?
}
};
(@path $config:expr, $default:path, $key_one:ident, $($keys:ident),*) => {
get! {@path_if_none $config, None, $default, $key_one, $($keys),*}
};
}
impl Config {
pub fn from_config_file(
db_path: Option<PathBuf>,
config_path: Option<PathBuf>,
) -> Result<Self> {
let config_file_path = config_path
.map(Ok)
.unwrap_or_else(|| -> Result<_> { paths::config_path() })?;
let config: super::definitions::ConfigFile =
toml::from_str(&read_to_string(config_file_path).unwrap_or("".to_owned()))
.context("Failed to parse the config file as toml")?;
Ok(Self {
select: SelectConfig {
playback_speed: get! {select::playback_speed, config, select, playback_speed},
subtitle_langs: get! {select::subtitle_langs, config, select, subtitle_langs},
},
watch: WatchConfig {
local_comments_length: get! {watch::local_comments_length, config, watch, local_comments_length},
},
update: UpdateConfig {
max_backlog: get! {update::max_backlog, config, update, max_backlog},
},
paths: PathsConfig {
download_dir: get! {@path config, paths::download_dir, paths, download_dir},
mpv_config_path: get! {@path config, paths::mpv_config_path, paths, mpv_config_path},
mpv_input_path: get! {@path config, paths::mpv_input_path, paths, mpv_input_path},
database_path: get! {@path_if_none config, db_path, paths::database_path, paths, database_path},
last_selection_path: get! {@path config, paths::last_selection_path, paths, last_selection_path},
},
download: DownloadConfig {
max_cache_size: {
let bytes_str: String =
get! {download::max_cache_size, config, download, max_cache_size};
let number: Bytes = bytes_str
.parse()
.context("Failed to parse max_cache_size")?;
number
},
},
})
}
}
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