weather_cli/
cli.rs

1use clap::Parser;
2
3use crate::{
4    api_usage::{print_weather_information, search_city},
5    get_executable_directory,
6    program_info::ABOUT,
7    user_setup::setup_api,
8};
9
10#[derive(clap::Parser)]
11#[command(author, version, about = ABOUT, long_about = None)]
12struct Cli {
13    #[command(subcommand)]
14    command: Option<Commands>,
15}
16
17#[derive(clap::Subcommand)]
18enum Commands {
19    /// Check weather information in your city
20    Check {},
21
22    /// Search and set your city
23    SetLocation {
24        /// A search query.
25        #[arg(short, long)]
26        query: String,
27    },
28
29    /// Setup an OpenWeather API Key
30    /// (https://openweathermap.org)
31    SetupApi {
32        /// API key from OpenWeather.
33        #[arg(short, long)]
34        key: String,
35    },
36
37    /// View information about the program
38    About {},
39}
40
41pub async fn init() {
42    let cli = Cli::parse();
43
44    match &cli.command {
45        Some(Commands::Check {}) => {
46            match print_weather_information().await {
47                Ok(()) => {}
48                Err(e) => {
49                    println!("ERROR: {}", e);
50                }
51            };
52        }
53        Some(Commands::SetLocation { query }) => {
54            search_city(query).await.unwrap_or_else(|e| {
55                println!("ERROR: {}", e);
56            });
57        }
58        Some(Commands::SetupApi { key }) => {
59            setup_api(key.to_string()).unwrap_or_else(|e| {
60                println!("ERROR: {}", e);
61            });
62        }
63        Some(Commands::About {}) => {
64            use crate::program_info::{
65                CRATES_IO_URL, PROGRAM_AUTHORS, PROGRAM_DESCRIPTION, PROGRAM_NAME, REPOSITORY_URL,
66            };
67
68            let splitted_author_list: Vec<&str> = PROGRAM_AUTHORS.split(',').collect();
69
70            let mut authors = String::new();
71            for (index, one) in splitted_author_list.into_iter().enumerate() {
72                if index == 0 {
73                    authors += one.trim();
74                } else {
75                    authors = authors + ", " + one.trim();
76                }
77            }
78
79            println!("# {}", PROGRAM_NAME);
80            println!("{}\n", PROGRAM_DESCRIPTION);
81            println!("Developed by: {}", authors);
82            println!("- crates.io: {}", CRATES_IO_URL);
83            println!("- Github: {}", REPOSITORY_URL);
84        }
85        None => {
86            println!("Please use \"weather-cli help\" command for help.");
87
88            let executable_directory = get_executable_directory().unwrap();
89            println!("- Program Executable Directory: {}", executable_directory);
90        }
91    }
92}
weather_cli/cli.rs

weather_cli/
cli.rs
