forecaster 0.1.3

A simple weather forecaster that takes all the data from https://openweathermap.org/ and displays it in a nice way.
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use anyhow::Result;
use std::fs;

use crate::utils::config::{get_config_dir, read_config};

pub fn update_config_value(args: &[String]) -> Result<()> {
    let config_to_update = match args.get(1) {
        None => {
            return Err(anyhow::anyhow!(
                "Please provide which value you want to update"
            ))
        }
        Some(value) => match value.as_str() {
            "api_key" => value,
            "default_town" => value,
            _ => {
                return Err(anyhow::anyhow!(
                    "Wrong command. Only api_key and default_town are allowed."
                ))
            }
        },
    };

    let Some(value_to_set) = args.get(2) else {
        return Err(anyhow::anyhow!(format!(
            "Please provide value for {}",
            config_to_update
        )));
    };

    create_config_dir()?;

    let mut config = read_config();

    match config_to_update.as_str() {
        "api_key" => {
            config.api_key = Some(value_to_set.clone());
        }
        "default_town" => {
            config.default_town = Some(value_to_set.clone());
        }
        &_ => {}
    };

    let config_stringified = toml::to_string(&config)?;

    let config_dir = get_config_dir()?;

    let config_file_path = config_dir.join("config.toml");

    fs::write(config_file_path, config_stringified)?;

    Ok(())
}

fn create_config_dir() -> Result<()> {
    let config_dir = get_config_dir()?;

    if config_dir.exists() {
        return Ok(());
    }

    if !config_dir.exists() {
        fs::create_dir(&config_dir)?;
    }

    Ok(())
}