rura 1.5.0

Interactive TUI pipeline editor built for rapid iteration
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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

use crate::completable_input::CompletableInput;
use crate::theme::Theme;
use cfg_if::cfg_if;
use itertools::Itertools;
use log::debug;
use ratatui::buffer::Buffer;
use ratatui::layout::Constraint::Length;
use ratatui::layout::{Constraint, Direction, Layout, Margin, Rect};
use ratatui::prelude::{Line, Stylize, Widget};
use ratatui::style::Styled;
use ratatui::widgets::{Block, Borders, Clear, Paragraph};
use std::fs::OpenOptions;
use std::io::Write;
#[cfg(unix)]
use std::os::unix::fs::OpenOptionsExt;
use std::path::PathBuf;

pub struct SaveToFileWidget {
    pub title: String,
    pub theme: Theme,
    pub file_path_input: CompletableInput,
    pub error_message: Option<String>,
    pub cursor: (u16, u16),
}

impl SaveToFileWidget {
    pub fn new(title: String, shell: String, theme: Theme) -> Self {
        Self {
            title,
            theme,
            file_path_input: CompletableInput::file_only("", &shell),
            error_message: None,
            cursor: (0, 0),
        }
    }

    pub fn save(&mut self, content: Vec<u8>) -> anyhow::Result<()> {
        cfg_if! {
            if #[cfg(unix)] {
                self.save_file(content, 0o644)
            } else if #[cfg(windows)] {
                self.save_file(content)
            }
        }
    }

    pub fn save_executable(&mut self, content: &str) -> anyhow::Result<()> {
        cfg_if! {
            if #[cfg(unix)] {
                self.save_file(content.bytes().collect_vec(), 0o755)
            } else if #[cfg(windows)] {
                self.save_file(content.bytes().collect_vec())
            }
        }
    }

    #[cfg(unix)]
    fn save_file(&mut self, content: Vec<u8>, mode: u32) -> anyhow::Result<()> {
        let path = PathBuf::from(self.file_path_input.value().trim());
        let mut file = OpenOptions::new()
            .create_new(true)
            .write(true)
            .mode(mode)
            .open(path)?;

        debug!("Saving with len: {:?}", content.len());

        file.write_all(&content)?;

        self.error_message = None;

        Ok(())
    }

    #[cfg(windows)]
    fn save_file(&mut self, content: Vec<u8>) -> anyhow::Result<()> {
        let path = PathBuf::from(self.file_path_input.value().trim());

        let mut file = OpenOptions::new().create_new(true).write(true).open(path)?;

        debug!("Saving with len: {:?}", content.len());

        file.write_all(&content)?;

        self.error_message = None;

        Ok(())
    }
}

impl Widget for &mut SaveToFileWidget {
    fn render(self, area: Rect, buf: &mut Buffer)
    where
        Self: Sized,
    {
        let height = if self.error_message.is_some() { 7 } else { 6 };

        let centered_area = area.centered(Constraint::Percentage(60), Constraint::Length(height));

        let centered_inner_area = centered_area.inner(Margin::new(1, 1));

        let [path_area, error_area, buttons_area] = Layout::default()
            .direction(Direction::Vertical)
            .constraints([
                Length(3),
                Length(if self.error_message.is_some() { 1 } else { 0 }),
                Length(1),
            ])
            .areas(centered_inner_area);

        Clear.render(centered_area, buf);
        Block::default()
            .borders(Borders::ALL)
            .title(self.title.clone())
            .set_style(self.theme.popup)
            .render(centered_area, buf);

        let path_input_area = centered_inner_area.inner(Margin::new(1, 1));
        let shift = self
            .file_path_input
            .cursor()
            .saturating_sub(path_input_area.width.into()) as u16;
        Paragraph::new(self.file_path_input.value())
            .block(Block::default().borders(Borders::ALL))
            .scroll((0, shift))
            .render(path_area, buf);

        if let Some(error_message) = &self.error_message {
            Line::from(error_message.clone())
                .red()
                .on_white()
                .render(error_area, buf);
        }

        Line::from(vec![
            "Enter ".bold(),
            "Save | ".into(),
            "Esc ".bold(),
            "Cancel".into(),
        ])
        .right_aligned()
        .render(buttons_area, buf);

        self.cursor = (
            (path_input_area.x + self.file_path_input.cursor() as u16)
                .min(path_input_area.width + path_area.x),
            path_input_area.y,
        );
    }
}