rura 1.0.0

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

use crate::config::KeyBindingsConfig;
use crossterm::event::{KeyCode, KeyModifiers};
use std::collections::HashMap;

#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum UiCmd {
    Quit,
    ExecuteFull,
    ExecuteUntilCurrent,
    ExecuteUntilPrev,
    ResetInput,
    ScrollDown,
    ScrollDownPage,
    ScrollUp,
    ScrollUpPage,
    ScrollLeft,
    ScrollRight,
    ToggleWrap,
    HistoryPrev,
    HistoryNext,
    SubcommandNext,
    SubcommandPrev,
    Complete,
    CompletePrev,
    SearchNext,
    SearchPrev,
}

pub struct KeyBindings {
    pub bindings: HashMap<UiCmd, Vec<(KeyCode, KeyModifiers)>>,
}

impl KeyBindings {
    pub fn from_config(config: &KeyBindingsConfig) -> Self {
        let mut bindings: HashMap<UiCmd, Vec<(KeyCode, KeyModifiers)>> = HashMap::new();
        bindings.insert(UiCmd::Quit, parse_bindings(&config.quit));
        bindings.insert(UiCmd::ExecuteFull, parse_bindings(&config.execute_full));
        bindings.insert(
            UiCmd::ExecuteUntilCurrent,
            parse_bindings(&config.execute_until_current),
        );
        bindings.insert(
            UiCmd::ExecuteUntilPrev,
            parse_bindings(&config.execute_until_prev),
        );
        bindings.insert(UiCmd::ResetInput, parse_bindings(&config.reset_input));
        bindings.insert(UiCmd::ScrollDown, parse_bindings(&config.scroll_down));
        bindings.insert(
            UiCmd::ScrollDownPage,
            parse_bindings(&config.scroll_down_page),
        );
        bindings.insert(UiCmd::ScrollUp, parse_bindings(&config.scroll_up));
        bindings.insert(UiCmd::ScrollUpPage, parse_bindings(&config.scroll_up_page));
        bindings.insert(UiCmd::ScrollLeft, parse_bindings(&config.scroll_left));
        bindings.insert(UiCmd::ScrollRight, parse_bindings(&config.scroll_right));
        bindings.insert(UiCmd::ToggleWrap, parse_bindings(&config.toggle_wrap));
        bindings.insert(UiCmd::HistoryPrev, parse_bindings(&config.history_prev));
        bindings.insert(UiCmd::HistoryNext, parse_bindings(&config.history_next));
        bindings.insert(
            UiCmd::SubcommandNext,
            parse_bindings(&config.subcommand_next),
        );
        bindings.insert(
            UiCmd::SubcommandPrev,
            parse_bindings(&config.subcommand_prev),
        );
        bindings.insert(UiCmd::Complete, parse_bindings(&config.complete));
        bindings.insert(UiCmd::CompletePrev, parse_bindings(&config.complete_prev));
        KeyBindings { bindings }
    }
}

fn parse_bindings(keys: &[String]) -> Vec<(KeyCode, KeyModifiers)> {
    keys.iter().filter_map(|s| parse_key_binding(s)).collect()
}

fn parse_key_binding(s: &str) -> Option<(KeyCode, KeyModifiers)> {
    // Split into parts; everything before the last segment is a modifier.
    // Use splitn with a high limit to get all segments.
    let parts: Vec<&str> = s.splitn(10, '+').collect();
    if parts.is_empty() {
        return None;
    }

    let (modifier_parts, key_parts) = parts.split_at(parts.len() - 1);
    let key_str = key_parts[0].to_lowercase();

    let mut modifiers = KeyModifiers::NONE;
    for part in modifier_parts {
        match part.to_lowercase().as_str() {
            "ctrl" => modifiers |= KeyModifiers::CONTROL,
            "alt" => modifiers |= KeyModifiers::ALT,
            "shift" => modifiers |= KeyModifiers::SHIFT,
            _ => return None,
        }
    }

    let code = match key_str.as_str() {
        "enter" => KeyCode::Enter,
        "esc" | "escape" => KeyCode::Esc,
        "backspace" => KeyCode::Backspace,
        "delete" | "del" => KeyCode::Delete,
        "tab" => KeyCode::Tab,
        "backtab" => KeyCode::BackTab,
        "up" => KeyCode::Up,
        "down" => KeyCode::Down,
        "left" => KeyCode::Left,
        "right" => KeyCode::Right,
        "pageup" => KeyCode::PageUp,
        "pagedown" => KeyCode::PageDown,
        "home" => KeyCode::Home,
        "end" => KeyCode::End,
        "f1" => KeyCode::F(1),
        "f2" => KeyCode::F(2),
        "f3" => KeyCode::F(3),
        "f4" => KeyCode::F(4),
        "f5" => KeyCode::F(5),
        "f6" => KeyCode::F(6),
        "f7" => KeyCode::F(7),
        "f8" => KeyCode::F(8),
        "f9" => KeyCode::F(9),
        "f10" => KeyCode::F(10),
        "f11" => KeyCode::F(11),
        "f12" => KeyCode::F(12),
        s if s.chars().count() == 1 => KeyCode::Char(s.chars().next().unwrap()),
        _ => return None,
    };

    Some((code, modifiers))
}

pub fn to_ui_command(bindings: &KeyBindings, code: KeyCode, mods: KeyModifiers) -> Option<UiCmd> {
    bindings.bindings.iter().find_map(|(action, bindings)| {
        if bindings.contains(&(code, mods)) {
            Some(*action)
        } else {
            None
        }
    })
}