prustio 1.0.3

The Rust embedded project management.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

//! Controller for managing connected hardware devices.
//!
//! This module provides the logic for the `prustio device` subcommand, including
//! listing available microcontrollers and launching a PlatformIO interactive serial 
//! monitor to communicate with the hardware.

use std::env;

use crate::model::device;
use crate::ui::device::{Parity, EOL};
use crate::wrapper::platformio;

/// Fetches and displays a list of connected serial devices.
///
/// This function queries the host system for attached hardware and prints
/// the list to the console.
///
/// # Arguments
/// * `json_output` - If `true`, prints the output as a JSON string instead of a human-readable table.
/// 
/// # Errors
/// Returns an error when fails to fetch device list
pub fn device_list(json_output: &bool) -> Result<String, String> {
    let devices = device::get_port_list()?;
    
    if *json_output {
        Ok(format_devices_json(&devices)?)
    } else {
        Ok(format_devices_table(&devices))
    }
}

/// Launches a serial monitor for the connected device.
///
/// This function acts as a wrapper around the PlatformIO serial monitor, passing
/// all user-specified terminal configuration options (baud rate, parity, etc.) 
/// down to the `pio device monitor` command.
///
/// # Arguments
/// * `port` - The specific serial port to connect to.
/// * `baud` - The baud rate for the connection.
/// * `parity` - The parity checking mode.
/// * `rtscts` - Enable RTS/CTS hardware flow control.
/// * `xonxoff` - Enable software flow control.
/// * `rts` - Initial state of the RTS line (0 or 1).
/// * `dtr` - Initial state of the DTR line (0 or 1).
/// * `echo` - Enable local echo in the terminal.
/// * `encoding` - Set the terminal encoding.
/// * `filter` - Apply a PlatformIO output filter.
/// * `eol` - Set the End-Of-Line character sequence.
/// * `raw` - Do not apply any encodings or transformations.
/// * `exit_char` - The ASCII code for the exit shortcut.
/// * `menu_char` - The ASCII code for the menu shortcut.
/// * `quiet` - Suppress diagnostic outputs from the monitor.
/// * `no_reconnect` - Do not attempt to automatically reconnect if the port drops.
///
/// # Errors
/// Returns an error string if:
/// * The current working directory cannot be determined.
/// * The PlatformIO monitor exits with an error status.
pub fn device_monitor(
    port: &Option<String>, 
    baud: &Option<u32>, 
    parity: &Option<Parity>, 
    rtscts: &bool, 
    xonxoff: &bool, 
    rts: &Option<u8>, 
    dtr: &Option<u8>, 
    echo: &bool, 
    encoding: &Option<String>, 
    filter: &Option<String>, 
    eol: &Option<EOL>, 
    raw: &bool, 
    exit_char: &Option<u8>, 
    menu_char: &Option<u8>, 
    quiet: &bool, 
    no_reconnect: &bool 
) ->Result<(), String> {
    let proj_path = match env::current_dir() {
        Ok(path) => path,
        Err(_) => {
            return Err("Failed to get current working directory.".to_string());
        },
    };

    platformio::device_monitor(
        &proj_path, port, baud, parity, rtscts, xonxoff, rts, dtr,
        echo, encoding, filter, eol, raw, exit_char, menu_char, quiet, no_reconnect
    )?;
    Ok(())
}

/// Formats the vector of devices to JSON format.
///
/// # Arguments
/// * `devices` - A vector of `PioDevice` structs.
/// 
/// # Errors
/// Returns an error, if formatting fails.
fn format_devices_json(devices: &Vec<device::PioDevice>) -> Result<String, String> {
    let json_string = match serde_json::to_string_pretty(devices) {
        Ok(json) => json,
        Err(_) => {
            return Err("Failed to parse devices to the json format.".to_string())
        }
    };
    Ok(json_string)
}

/// Formats the vector of devices to table format.
///
/// # Arguments
/// * `devices` - A vector of `PioDevice` structs.
/// 
/// # Errors
/// Returns an error, if formatting fails.
fn format_devices_table(devices: &Vec<device::PioDevice>) -> String {
    let mut table_string = String::new();

    for device in devices {
        let hwid = match &device.hwid {
            Some(id) => id.clone(),
            None => "n/a".to_string()
        };
        let description = match &device.description {
            Some(desc) => desc.clone(),
            None => "n/a".to_string()
        };
        table_string += format!("{}\n", device.port).as_str();
        table_string += "----------------\n";
        table_string += format!("Hardware ID: {}\n", hwid).as_str();
        table_string += format!("Description: {}\n\n", description).as_str();
    }
    table_string
}