kimun_notes/settings/
themes.rs

1use ratatui::style::{Color, Style};
2use serde::{Deserialize, Deserializer, Serialize, Serializer};
3use std::fmt::Display;
4
5#[derive(Debug, Clone, PartialEq)]
6pub enum ThemeColor {
7    Rgb(u8, u8, u8),
8    /// Terminal ANSI color index (0–15 for the standard palette, up to 255 for
9    /// 256-color mode). The actual color is determined by the user's terminal.
10    Ansi(u8),
11    /// The terminal's default foreground or background color.
12    Reset,
13}
14
15impl Serialize for ThemeColor {
16    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
17    where
18        S: Serializer,
19    {
20        match self {
21            ThemeColor::Rgb(r, g, b) => {
22                serializer.serialize_str(&format!("#{:02x}{:02x}{:02x}", r, g, b))
23            }
24            ThemeColor::Ansi(n) => serializer.serialize_str(&format!("ansi:{}", n)),
25            ThemeColor::Reset => serializer.serialize_str("reset"),
26        }
27    }
28}
29
30impl<'de> Deserialize<'de> for ThemeColor {
31    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
32    where
33        D: Deserializer<'de>,
34    {
35        let s = String::deserialize(deserializer)?;
36        ThemeColor::from_string(&s).map_err(serde::de::Error::custom)
37    }
38}
39
40impl ThemeColor {
41    pub fn new(r: u8, g: u8, b: u8) -> Self {
42        ThemeColor::Rgb(r, g, b)
43    }
44
45    /// Convert to the corresponding ratatui `Color`.
46    ///
47    /// ANSI indices 0–15 map to ratatui's named color variants so they emit
48    /// the standard SGR codes (30–37 / 90–97) the terminal's palette is keyed
49    /// to, rather than the 256-color `38;5;n` form which some terminals
50    /// remap inconsistently for the low 16 slots.
51    pub fn to_ratatui(&self) -> Color {
52        match self {
53            ThemeColor::Rgb(r, g, b) => Color::Rgb(*r, *g, *b),
54            ThemeColor::Ansi(n) => match n {
55                0 => Color::Black,
56                1 => Color::Red,
57                2 => Color::Green,
58                3 => Color::Yellow,
59                4 => Color::Blue,
60                5 => Color::Magenta,
61                6 => Color::Cyan,
62                7 => Color::Gray,
63                8 => Color::DarkGray,
64                9 => Color::LightRed,
65                10 => Color::LightGreen,
66                11 => Color::LightYellow,
67                12 => Color::LightBlue,
68                13 => Color::LightMagenta,
69                14 => Color::LightCyan,
70                15 => Color::White,
71                _ => Color::Indexed(*n),
72            },
73            ThemeColor::Reset => Color::Reset,
74        }
75    }
76
77    /// Parse a color from a string in various formats:
78    /// - RGB: "rgb(255, 128, 0)"
79    /// - 3-char hex: "#abc" (expanded to #aabbcc)
80    /// - 6-char hex: "#aabbcc"
81    /// - ANSI index: "ansi:4" (0–255)
82    /// - Terminal default: "reset"
83    pub fn from_string(s: &str) -> Result<Self, String> {
84        let s = s.trim();
85
86        if s.starts_with('#') {
87            Self::from_hex(s)
88        } else if s.starts_with("rgb(") && s.ends_with(')') {
89            Self::from_rgb_string(s)
90        } else if s == "reset" {
91            Ok(ThemeColor::Reset)
92        } else if let Some(rest) = s.strip_prefix("ansi:") {
93            rest.parse::<u8>()
94                .map(ThemeColor::Ansi)
95                .map_err(|_| format!("Invalid ANSI color index: {}", rest))
96        } else {
97            Err(format!("Invalid color format: {}", s))
98        }
99    }
100
101    /// Parse hex color string (#abc or #aabbcc)
102    fn from_hex(s: &str) -> Result<Self, String> {
103        if !s.starts_with('#') {
104            return Err("Hex color must start with #".to_string());
105        }
106
107        let hex = &s[1..];
108
109        match hex.len() {
110            3 => Self::from_hex_3char(hex),
111            6 => Self::from_hex_6char(hex),
112            _ => Err(format!(
113                "Invalid hex color length: expected 3 or 6 chars, got {}",
114                hex.len()
115            )),
116        }
117    }
118
119    /// Parse 3-character hex color (e.g., "abc" -> r=0xaa, g=0xbb, b=0xcc)
120    fn from_hex_3char(hex: &str) -> Result<Self, String> {
121        if hex.len() != 3 {
122            return Err("Expected 3 hex characters".to_string());
123        }
124
125        let r = u8::from_str_radix(&hex[0..1].repeat(2), 16)
126            .map_err(|_| format!("Invalid hex character in red component: {}", &hex[0..1]))?;
127        let g = u8::from_str_radix(&hex[1..2].repeat(2), 16)
128            .map_err(|_| format!("Invalid hex character in green component: {}", &hex[1..2]))?;
129        let b = u8::from_str_radix(&hex[2..3].repeat(2), 16)
130            .map_err(|_| format!("Invalid hex character in blue component: {}", &hex[2..3]))?;
131
132        Ok(ThemeColor::Rgb(r, g, b))
133    }
134
135    /// Parse 6-character hex color (e.g., "aabbcc")
136    fn from_hex_6char(hex: &str) -> Result<Self, String> {
137        if hex.len() != 6 {
138            return Err("Expected 6 hex characters".to_string());
139        }
140
141        let r = u8::from_str_radix(&hex[0..2], 16)
142            .map_err(|_| format!("Invalid hex characters in red component: {}", &hex[0..2]))?;
143        let g = u8::from_str_radix(&hex[2..4], 16)
144            .map_err(|_| format!("Invalid hex characters in green component: {}", &hex[2..4]))?;
145        let b = u8::from_str_radix(&hex[4..6], 16)
146            .map_err(|_| format!("Invalid hex characters in blue component: {}", &hex[4..6]))?;
147
148        Ok(ThemeColor::Rgb(r, g, b))
149    }
150
151    /// Parse RGB string format (e.g., "rgb(255, 128, 0)")
152    fn from_rgb_string(s: &str) -> Result<Self, String> {
153        if !s.starts_with("rgb(") || !s.ends_with(')') {
154            return Err("RGB format must be rgb(r, g, b)".to_string());
155        }
156
157        let inner = &s[4..s.len() - 1];
158        let parts: Vec<&str> = inner.split(',').map(|p| p.trim()).collect();
159
160        if parts.len() != 3 {
161            return Err(format!("RGB format requires 3 values, got {}", parts.len()));
162        }
163
164        let r = parts[0]
165            .parse::<u8>()
166            .map_err(|_| format!("Invalid red value: {}", parts[0]))?;
167        let g = parts[1]
168            .parse::<u8>()
169            .map_err(|_| format!("Invalid green value: {}", parts[1]))?;
170        let b = parts[2]
171            .parse::<u8>()
172            .map_err(|_| format!("Invalid blue value: {}", parts[2]))?;
173
174        Ok(ThemeColor::Rgb(r, g, b))
175    }
176}
177
178impl Display for ThemeColor {
179    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
180        match self {
181            ThemeColor::Rgb(r, g, b) => write!(f, "rgb({},{},{})", r, g, b),
182            ThemeColor::Ansi(n) => write!(f, "ansi:{}", n),
183            ThemeColor::Reset => write!(f, "reset"),
184        }
185    }
186}
187
188/// Theme for the TUI application.
189///
190/// Fields are named after the UI roles they fill, making it straightforward to
191/// map any popular terminal color scheme (Gruvbox, Catppuccin, Tokyo Night, …)
192/// to this struct.  Custom themes can be placed as `.toml` files in the themes
193/// config directory and will be loaded automatically at startup.
194///
195/// # Example theme file (`~/.config/kimun/themes/mytheme.toml`)
196/// ```toml
197/// name = "My Theme"
198/// bg               = "#1e1e2e"
199/// bg_panel         = "#181825"
200/// bg_selected      = "#313244"
201/// fg               = "#cdd6f4"
202/// fg_secondary     = "#a6adc8"
203/// fg_muted         = "#6c7086"
204/// fg_selected      = "#cdd6f4"
205/// border           = "#45475a"
206/// border_focused   = "#89b4fa"
207/// accent           = "#89b4fa"
208/// color_directory  = "#89dceb"
209/// color_journal_date = "#94e2d5"
210/// color_search_match = "#a6e3a1"
211/// ```
212#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
213pub struct Theme {
214    pub name: String,
215
216    // ── Backgrounds ─────────────────────────────────────────────────────────
217    /// Main/editor background.
218    pub bg: ThemeColor,
219    /// Sidebar / panel background (usually slightly offset from `bg`).
220    pub bg_panel: ThemeColor,
221    /// Background of the currently selected row in lists.
222    pub bg_selected: ThemeColor,
223
224    // ── Foreground / text ────────────────────────────────────────────────────
225    /// Primary text color.
226    pub fg: ThemeColor,
227    /// Secondary text: filenames, metadata, subdued hints.
228    pub fg_secondary: ThemeColor,
229    /// Very dim text: placeholders, separators, disabled items.
230    pub fg_muted: ThemeColor,
231    /// Text color of a selected/highlighted row (often brighter than `fg`).
232    pub fg_selected: ThemeColor,
233
234    // ── Borders ──────────────────────────────────────────────────────────────
235    /// Default (unfocused) border color.
236    pub border: ThemeColor,
237    /// Border color when the pane has keyboard focus.
238    pub border_focused: ThemeColor,
239
240    // ── Accent ───────────────────────────────────────────────────────────────
241    /// Primary accent: title bars, active markers, cursor highlights.
242    pub accent: ThemeColor,
243
244    // ── Semantic colors for file-list entries ────────────────────────────────
245    /// Color used for directory entries in the file list.
246    pub color_directory: ThemeColor,
247    /// Color for the journal-date annotation line in journal entries.
248    pub color_journal_date: ThemeColor,
249    /// Color for highlighted search-match text.
250    pub color_search_match: ThemeColor,
251}
252
253impl Default for Theme {
254    fn default() -> Self {
255        Self::gruvbox_dark()
256    }
257}
258
259impl Theme {
260    // ── Built-in themes ──────────────────────────────────────────────────────
261
262    pub fn gruvbox_dark() -> Self {
263        Theme {
264            name: "Gruvbox Dark".to_string(),
265            bg: ThemeColor::from_string("#282828").unwrap(),
266            bg_panel: ThemeColor::from_string("#32302f").unwrap(),
267            bg_selected: ThemeColor::from_string("#504945").unwrap(),
268            fg: ThemeColor::from_string("#ebdbb2").unwrap(),
269            fg_secondary: ThemeColor::from_string("#a89984").unwrap(),
270            fg_muted: ThemeColor::from_string("#7c6f64").unwrap(),
271            fg_selected: ThemeColor::from_string("#fbf1c7").unwrap(),
272            border: ThemeColor::from_string("#504945").unwrap(),
273            border_focused: ThemeColor::from_string("#fabd2f").unwrap(),
274            accent: ThemeColor::from_string("#fabd2f").unwrap(),
275            color_directory: ThemeColor::from_string("#83a598").unwrap(),
276            color_journal_date: ThemeColor::from_string("#8ec07c").unwrap(),
277            color_search_match: ThemeColor::from_string("#b8bb26").unwrap(),
278        }
279    }
280
281    pub fn gruvbox_light() -> Self {
282        Theme {
283            name: "Gruvbox Light".to_string(),
284            bg: ThemeColor::from_string("#fbf1c7").unwrap(),
285            bg_panel: ThemeColor::from_string("#f2e5bc").unwrap(),
286            bg_selected: ThemeColor::from_string("#ebdbb2").unwrap(),
287            fg: ThemeColor::from_string("#3c3836").unwrap(),
288            fg_secondary: ThemeColor::from_string("#7c6f64").unwrap(),
289            fg_muted: ThemeColor::from_string("#a89984").unwrap(),
290            fg_selected: ThemeColor::from_string("#282828").unwrap(),
291            border: ThemeColor::from_string("#d5c4a1").unwrap(),
292            border_focused: ThemeColor::from_string("#d79921").unwrap(),
293            accent: ThemeColor::from_string("#d79921").unwrap(),
294            color_directory: ThemeColor::from_string("#458588").unwrap(),
295            color_journal_date: ThemeColor::from_string("#689d6a").unwrap(),
296            color_search_match: ThemeColor::from_string("#98971a").unwrap(),
297        }
298    }
299
300    pub fn catppuccin_mocha() -> Self {
301        Theme {
302            name: "Catppuccin Mocha".to_string(),
303            bg: ThemeColor::from_string("#1e1e2e").unwrap(),
304            bg_panel: ThemeColor::from_string("#181825").unwrap(),
305            bg_selected: ThemeColor::from_string("#313244").unwrap(),
306            fg: ThemeColor::from_string("#cdd6f4").unwrap(),
307            fg_secondary: ThemeColor::from_string("#a6adc8").unwrap(),
308            fg_muted: ThemeColor::from_string("#6c7086").unwrap(),
309            fg_selected: ThemeColor::from_string("#cdd6f4").unwrap(),
310            border: ThemeColor::from_string("#45475a").unwrap(),
311            border_focused: ThemeColor::from_string("#89b4fa").unwrap(),
312            accent: ThemeColor::from_string("#cba6f7").unwrap(),
313            color_directory: ThemeColor::from_string("#89dceb").unwrap(),
314            color_journal_date: ThemeColor::from_string("#94e2d5").unwrap(),
315            color_search_match: ThemeColor::from_string("#a6e3a1").unwrap(),
316        }
317    }
318
319    pub fn catppuccin_latte() -> Self {
320        Theme {
321            name: "Catppuccin Latte".to_string(),
322            bg: ThemeColor::from_string("#eff1f5").unwrap(),
323            bg_panel: ThemeColor::from_string("#e6e9ef").unwrap(),
324            bg_selected: ThemeColor::from_string("#ccd0da").unwrap(),
325            fg: ThemeColor::from_string("#4c4f69").unwrap(),
326            fg_secondary: ThemeColor::from_string("#6c6f85").unwrap(),
327            fg_muted: ThemeColor::from_string("#9ca0b0").unwrap(),
328            fg_selected: ThemeColor::from_string("#4c4f69").unwrap(),
329            border: ThemeColor::from_string("#ccd0da").unwrap(),
330            border_focused: ThemeColor::from_string("#1e66f5").unwrap(),
331            accent: ThemeColor::from_string("#8839ef").unwrap(),
332            color_directory: ThemeColor::from_string("#04a5e5").unwrap(),
333            color_journal_date: ThemeColor::from_string("#179299").unwrap(),
334            color_search_match: ThemeColor::from_string("#40a02b").unwrap(),
335        }
336    }
337
338    pub fn tokyo_night() -> Self {
339        Theme {
340            name: "Tokyo Night".to_string(),
341            bg: ThemeColor::from_string("#1a1b26").unwrap(),
342            bg_panel: ThemeColor::from_string("#16161e").unwrap(),
343            bg_selected: ThemeColor::from_string("#292e42").unwrap(),
344            fg: ThemeColor::from_string("#c0caf5").unwrap(),
345            fg_secondary: ThemeColor::from_string("#a9b1d6").unwrap(),
346            fg_muted: ThemeColor::from_string("#565f89").unwrap(),
347            fg_selected: ThemeColor::from_string("#c0caf5").unwrap(),
348            border: ThemeColor::from_string("#3b4261").unwrap(),
349            border_focused: ThemeColor::from_string("#7aa2f7").unwrap(),
350            accent: ThemeColor::from_string("#7aa2f7").unwrap(),
351            color_directory: ThemeColor::from_string("#7dcfff").unwrap(),
352            color_journal_date: ThemeColor::from_string("#73daca").unwrap(),
353            color_search_match: ThemeColor::from_string("#9ece6a").unwrap(),
354        }
355    }
356
357    pub fn tokyo_night_storm() -> Self {
358        Theme {
359            name: "Tokyo Night Storm".to_string(),
360            bg: ThemeColor::from_string("#24283b").unwrap(),
361            bg_panel: ThemeColor::from_string("#1f2335").unwrap(),
362            bg_selected: ThemeColor::from_string("#364a82").unwrap(),
363            fg: ThemeColor::from_string("#c0caf5").unwrap(),
364            fg_secondary: ThemeColor::from_string("#a9b1d6").unwrap(),
365            fg_muted: ThemeColor::from_string("#565f89").unwrap(),
366            fg_selected: ThemeColor::from_string("#c0caf5").unwrap(),
367            border: ThemeColor::from_string("#3b4261").unwrap(),
368            border_focused: ThemeColor::from_string("#7aa2f7").unwrap(),
369            accent: ThemeColor::from_string("#bb9af7").unwrap(),
370            color_directory: ThemeColor::from_string("#7dcfff").unwrap(),
371            color_journal_date: ThemeColor::from_string("#73daca").unwrap(),
372            color_search_match: ThemeColor::from_string("#9ece6a").unwrap(),
373        }
374    }
375
376    pub fn solarized_dark() -> Self {
377        Theme {
378            name: "Solarized Dark".to_string(),
379            bg: ThemeColor::from_string("#002b36").unwrap(),
380            bg_panel: ThemeColor::from_string("#073642").unwrap(),
381            bg_selected: ThemeColor::from_string("#586e75").unwrap(),
382            fg: ThemeColor::from_string("#839496").unwrap(),
383            fg_secondary: ThemeColor::from_string("#657b83").unwrap(),
384            fg_muted: ThemeColor::from_string("#586e75").unwrap(),
385            fg_selected: ThemeColor::from_string("#eee8d5").unwrap(),
386            border: ThemeColor::from_string("#073642").unwrap(),
387            border_focused: ThemeColor::from_string("#268bd2").unwrap(),
388            accent: ThemeColor::from_string("#268bd2").unwrap(),
389            color_directory: ThemeColor::from_string("#2aa198").unwrap(),
390            color_journal_date: ThemeColor::from_string("#859900").unwrap(),
391            color_search_match: ThemeColor::from_string("#b58900").unwrap(),
392        }
393    }
394
395    pub fn solarized_light() -> Self {
396        Theme {
397            name: "Solarized Light".to_string(),
398            bg: ThemeColor::from_string("#fdf6e3").unwrap(),
399            bg_panel: ThemeColor::from_string("#eee8d5").unwrap(),
400            bg_selected: ThemeColor::from_string("#93a1a1").unwrap(),
401            fg: ThemeColor::from_string("#657b83").unwrap(),
402            fg_secondary: ThemeColor::from_string("#839496").unwrap(),
403            fg_muted: ThemeColor::from_string("#93a1a1").unwrap(),
404            fg_selected: ThemeColor::from_string("#073642").unwrap(),
405            border: ThemeColor::from_string("#eee8d5").unwrap(),
406            border_focused: ThemeColor::from_string("#268bd2").unwrap(),
407            accent: ThemeColor::from_string("#268bd2").unwrap(),
408            color_directory: ThemeColor::from_string("#2aa198").unwrap(),
409            color_journal_date: ThemeColor::from_string("#859900").unwrap(),
410            color_search_match: ThemeColor::from_string("#b58900").unwrap(),
411        }
412    }
413
414    /// Returns the appropriate border style depending on focus state.
415    pub fn border_style(&self, focused: bool) -> Style {
416        if focused {
417            Style::default().fg(self.border_focused.to_ratatui())
418        } else {
419            Style::default().fg(self.border.to_ratatui())
420        }
421    }
422
423    /// Base style for most surfaces: theme fg on theme bg.
424    pub fn base_style(&self) -> Style {
425        Style::default()
426            .fg(self.fg.to_ratatui())
427            .bg(self.bg.to_ratatui())
428    }
429
430    /// Panel style for sidebars and panels: theme fg on bg_panel.
431    pub fn panel_style(&self) -> Style {
432        Style::default()
433            .fg(self.fg.to_ratatui())
434            .bg(self.bg_panel.to_ratatui())
435    }
436
437    pub fn nord() -> Self {
438        Theme {
439            name: "Nord".to_string(),
440            bg: ThemeColor::from_string("#2e3440").unwrap(),
441            bg_panel: ThemeColor::from_string("#3b4252").unwrap(),
442            bg_selected: ThemeColor::from_string("#434c5e").unwrap(),
443            fg: ThemeColor::from_string("#eceff4").unwrap(),
444            fg_secondary: ThemeColor::from_string("#d8dee9").unwrap(),
445            fg_muted: ThemeColor::from_string("#4c566a").unwrap(),
446            fg_selected: ThemeColor::from_string("#eceff4").unwrap(),
447            border: ThemeColor::from_string("#434c5e").unwrap(),
448            border_focused: ThemeColor::from_string("#81a1c1").unwrap(),
449            accent: ThemeColor::from_string("#88c0d0").unwrap(),
450            color_directory: ThemeColor::from_string("#81a1c1").unwrap(),
451            color_journal_date: ThemeColor::from_string("#8fbcbb").unwrap(),
452            color_search_match: ThemeColor::from_string("#a3be8c").unwrap(),
453        }
454    }
455
456    /// Uses the terminal's 16 ANSI colors so the theme adapts to whatever
457    /// palette the user has configured in their terminal emulator. Works for
458    /// both light and dark terminal palettes because backgrounds and primary
459    /// foregrounds use `Reset` (the terminal's defaults) and accents are
460    /// chromatic ANSI slots whose hue is stable across palettes.
461    pub fn ansi() -> Self {
462        Theme {
463            name: "ANSI".to_string(),
464            bg: ThemeColor::Reset,
465            bg_panel: ThemeColor::Reset,
466            bg_selected: ThemeColor::Ansi(4), // blue
467            fg: ThemeColor::Reset,
468            fg_secondary: ThemeColor::Ansi(7),        // white
469            fg_muted: ThemeColor::Ansi(8),            // bright black
470            fg_selected: ThemeColor::Ansi(15),        // bright white
471            border: ThemeColor::Ansi(8),              // bright black
472            border_focused: ThemeColor::Ansi(6),      // cyan
473            accent: ThemeColor::Ansi(6),              // cyan
474            color_directory: ThemeColor::Ansi(12),    // bright blue
475            color_journal_date: ThemeColor::Ansi(10), // bright green
476            color_search_match: ThemeColor::Ansi(11), // bright yellow
477        }
478    }
479}
480
481#[cfg(test)]
482mod tests {
483    use super::*;
484    use ratatui::style::Style;
485
486    #[test]
487    fn test_border_style_focused() {
488        let theme = Theme::gruvbox_dark();
489        let style = theme.border_style(true);
490        assert_eq!(
491            style,
492            Style::default().fg(theme.border_focused.to_ratatui())
493        );
494    }
495
496    #[test]
497    fn test_border_style_unfocused() {
498        let theme = Theme::gruvbox_dark();
499        let style = theme.border_style(false);
500        assert_eq!(style, Style::default().fg(theme.border.to_ratatui()));
501    }
502
503    #[test]
504    fn test_from_hex_6char() {
505        assert_eq!(
506            ThemeColor::from_string("#ff8800").unwrap(),
507            ThemeColor::Rgb(255, 136, 0)
508        );
509    }
510
511    #[test]
512    fn test_from_hex_6char_lowercase() {
513        assert_eq!(
514            ThemeColor::from_string("#abcdef").unwrap(),
515            ThemeColor::Rgb(171, 205, 239)
516        );
517    }
518
519    #[test]
520    fn test_from_hex_6char_uppercase() {
521        assert_eq!(
522            ThemeColor::from_string("#ABCDEF").unwrap(),
523            ThemeColor::Rgb(171, 205, 239)
524        );
525    }
526
527    #[test]
528    fn test_from_hex_3char() {
529        assert_eq!(
530            ThemeColor::from_string("#f80").unwrap(),
531            ThemeColor::Rgb(255, 136, 0)
532        );
533    }
534
535    #[test]
536    fn test_from_hex_3char_expansion() {
537        assert_eq!(
538            ThemeColor::from_string("#abc").unwrap(),
539            ThemeColor::Rgb(170, 187, 204)
540        );
541    }
542
543    #[test]
544    fn test_from_hex_3char_black() {
545        assert_eq!(
546            ThemeColor::from_string("#000").unwrap(),
547            ThemeColor::Rgb(0, 0, 0)
548        );
549    }
550
551    #[test]
552    fn test_from_hex_3char_white() {
553        assert_eq!(
554            ThemeColor::from_string("#fff").unwrap(),
555            ThemeColor::Rgb(255, 255, 255)
556        );
557    }
558
559    #[test]
560    fn test_from_rgb_string() {
561        assert_eq!(
562            ThemeColor::from_string("rgb(255, 128, 0)").unwrap(),
563            ThemeColor::Rgb(255, 128, 0)
564        );
565    }
566
567    #[test]
568    fn test_from_rgb_string_no_spaces() {
569        assert_eq!(
570            ThemeColor::from_string("rgb(255,128,0)").unwrap(),
571            ThemeColor::Rgb(255, 128, 0)
572        );
573    }
574
575    #[test]
576    fn test_from_rgb_string_extra_spaces() {
577        assert_eq!(
578            ThemeColor::from_string("rgb( 255 , 128 , 0 )").unwrap(),
579            ThemeColor::Rgb(255, 128, 0)
580        );
581    }
582
583    #[test]
584    fn test_from_rgb_string_min_max() {
585        assert_eq!(
586            ThemeColor::from_string("rgb(0, 255, 0)").unwrap(),
587            ThemeColor::Rgb(0, 255, 0)
588        );
589    }
590
591    #[test]
592    fn test_from_string_with_whitespace() {
593        assert_eq!(
594            ThemeColor::from_string("  #ff8800  ").unwrap(),
595            ThemeColor::Rgb(255, 136, 0)
596        );
597    }
598
599    #[test]
600    fn test_ansi_to_ratatui() {
601        // Low 16 ANSI indices map to named ratatui variants
602        assert_eq!(ThemeColor::Ansi(0).to_ratatui(), Color::Black);
603        assert_eq!(ThemeColor::Ansi(4).to_ratatui(), Color::Blue);
604        assert_eq!(ThemeColor::Ansi(7).to_ratatui(), Color::Gray);
605        assert_eq!(ThemeColor::Ansi(8).to_ratatui(), Color::DarkGray);
606        assert_eq!(ThemeColor::Ansi(15).to_ratatui(), Color::White);
607        // Indices >= 16 still use 256-color
608        assert_eq!(ThemeColor::Ansi(42).to_ratatui(), Color::Indexed(42));
609        assert_eq!(ThemeColor::Reset.to_ratatui(), Color::Reset);
610    }
611
612    #[test]
613    fn test_invalid_hex_length() {
614        let result = ThemeColor::from_string("#ff880");
615        assert!(result.is_err());
616        assert!(result.unwrap_err().contains("Invalid hex color length"));
617    }
618
619    #[test]
620    fn test_invalid_hex_chars() {
621        let result = ThemeColor::from_string("#gghhii");
622        assert!(result.is_err());
623    }
624
625    #[test]
626    fn test_missing_hash() {
627        let result = ThemeColor::from_string("ff8800");
628        assert!(result.is_err());
629        assert!(result.unwrap_err().contains("Invalid color format"));
630    }
631
632    #[test]
633    fn test_invalid_rgb_format() {
634        let result = ThemeColor::from_string("rgb(255, 128)");
635        assert!(result.is_err());
636        assert!(result.unwrap_err().contains("requires 3 values"));
637    }
638
639    #[test]
640    fn test_rgb_value_out_of_range() {
641        let result = ThemeColor::from_string("rgb(256, 128, 0)");
642        assert!(result.is_err());
643    }
644
645    #[test]
646    fn test_rgb_negative_value() {
647        let result = ThemeColor::from_string("rgb(-1, 128, 0)");
648        assert!(result.is_err());
649    }
650
651    #[test]
652    fn test_rgb_non_numeric() {
653        let result = ThemeColor::from_string("rgb(abc, 128, 0)");
654        assert!(result.is_err());
655        assert!(result.unwrap_err().contains("Invalid red value"));
656    }
657
658    #[test]
659    fn test_invalid_format() {
660        let result = ThemeColor::from_string("not a color");
661        assert!(result.is_err());
662        assert!(result.unwrap_err().contains("Invalid color format"));
663    }
664
665    #[test]
666    fn test_empty_string() {
667        let result = ThemeColor::from_string("");
668        assert!(result.is_err());
669    }
670
671    #[test]
672    fn test_new_constructor() {
673        assert_eq!(ThemeColor::new(255, 128, 0), ThemeColor::Rgb(255, 128, 0));
674    }
675
676    #[test]
677    fn test_to_ratatui() {
678        let color = ThemeColor::new(131, 165, 152);
679        assert_eq!(color.to_ratatui(), Color::Rgb(131, 165, 152));
680    }
681
682    #[test]
683    fn test_theme_color_serialize() {
684        #[derive(Serialize)]
685        struct Wrapper {
686            color: ThemeColor,
687        }
688        let wrapper = Wrapper {
689            color: ThemeColor::new(59, 130, 246),
690        };
691        let serialized = toml::to_string(&wrapper).unwrap();
692        assert!(serialized.contains("color = \"#3b82f6\""));
693    }
694
695    #[test]
696    fn test_theme_color_deserialize() {
697        #[derive(Deserialize)]
698        struct Wrapper {
699            color: ThemeColor,
700        }
701        let toml_str = r###"color = "#3b82f6""###;
702        let wrapper: Wrapper = toml::from_str(toml_str).unwrap();
703        assert_eq!(wrapper.color, ThemeColor::Rgb(59, 130, 246));
704    }
705
706    #[test]
707    fn test_theme_color_roundtrip() {
708        #[derive(Serialize, Deserialize)]
709        struct Wrapper {
710            color: ThemeColor,
711        }
712        let original = Wrapper {
713            color: ThemeColor::new(239, 68, 68),
714        };
715        let serialized = toml::to_string(&original).unwrap();
716        let deserialized: Wrapper = toml::from_str(&serialized).unwrap();
717        assert_eq!(original.color, deserialized.color);
718    }
719
720    #[test]
721    fn test_theme_serialize_to_toml() {
722        let theme = Theme::gruvbox_dark();
723        let toml_string = toml::to_string_pretty(&theme).unwrap();
724
725        assert!(toml_string.contains("name = \"Gruvbox Dark\""));
726        assert!(toml_string.contains("bg = \"#282828\""));
727        assert!(toml_string.contains("bg_panel = \"#32302f\""));
728        assert!(toml_string.contains("border_focused = \"#fabd2f\""));
729        assert!(toml_string.contains("color_journal_date = \"#8ec07c\""));
730    }
731
732    #[test]
733    fn test_theme_deserialize_from_toml() {
734        let toml_str = r###"
735            name = "Test Theme"
736            bg                 = "#282828"
737            bg_panel           = "#32302f"
738            bg_selected        = "#504945"
739            fg                 = "#ebdbb2"
740            fg_secondary       = "#a89984"
741            fg_muted           = "#7c6f64"
742            fg_selected        = "#fbf1c7"
743            border             = "#504945"
744            border_focused     = "#fabd2f"
745            accent             = "#fabd2f"
746            color_directory    = "#83a598"
747            color_journal_date = "#8ec07c"
748            color_search_match = "#b8bb26"
749        "###;
750
751        let theme: Theme = toml::from_str(toml_str).unwrap();
752        assert_eq!(theme.name, "Test Theme");
753        assert_eq!(theme.bg, ThemeColor::new(0x28, 0x28, 0x28));
754        assert_eq!(theme.border_focused, ThemeColor::new(0xfa, 0xbd, 0x2f));
755        assert_eq!(theme.color_journal_date, ThemeColor::new(0x8e, 0xc0, 0x7c));
756    }
757
758    #[test]
759    fn test_theme_roundtrip() {
760        let original = Theme::tokyo_night();
761        let toml_string = toml::to_string_pretty(&original).unwrap();
762        let deserialized: Theme = toml::from_str(&toml_string).unwrap();
763
764        assert_eq!(original.name, deserialized.name);
765        assert_eq!(original.bg, deserialized.bg);
766        assert_eq!(original.fg, deserialized.fg);
767        assert_eq!(original.border_focused, deserialized.border_focused);
768        assert_eq!(original.color_journal_date, deserialized.color_journal_date);
769    }
770
771    #[test]
772    fn test_theme_color_serialize_lowercase_hex() {
773        #[derive(Serialize)]
774        struct Wrapper {
775            color: ThemeColor,
776        }
777        let wrapper = Wrapper {
778            color: ThemeColor::new(171, 205, 239),
779        };
780        let serialized = toml::to_string(&wrapper).unwrap();
781        assert!(serialized.contains("color = \"#abcdef\""));
782    }
783
784    #[test]
785    fn test_theme_deserialize_uppercase_hex() {
786        #[derive(Deserialize)]
787        struct Wrapper {
788            color: ThemeColor,
789        }
790        let toml_str = r###"color = "#ABCDEF""###;
791        let wrapper: Wrapper = toml::from_str(toml_str).unwrap();
792        assert_eq!(wrapper.color, ThemeColor::Rgb(171, 205, 239));
793    }
794
795    #[test]
796    fn test_theme_deserialize_3char_hex() {
797        #[derive(Deserialize)]
798        struct Wrapper {
799            color: ThemeColor,
800        }
801        let toml_str = r###"color = "#abc""###;
802        let wrapper: Wrapper = toml::from_str(toml_str).unwrap();
803        assert_eq!(wrapper.color, ThemeColor::Rgb(170, 187, 204));
804    }
805
806    #[test]
807    fn test_from_ansi_index() {
808        assert_eq!(
809            ThemeColor::from_string("ansi:4").unwrap(),
810            ThemeColor::Ansi(4)
811        );
812        assert_eq!(
813            ThemeColor::from_string("ansi:255").unwrap(),
814            ThemeColor::Ansi(255)
815        );
816    }
817
818    #[test]
819    fn test_from_reset() {
820        assert_eq!(ThemeColor::from_string("reset").unwrap(), ThemeColor::Reset);
821    }
822
823    #[test]
824    fn test_all_builtin_themes_serialize() {
825        let themes = vec![
826            Theme::ansi(),
827            Theme::gruvbox_dark(),
828            Theme::gruvbox_light(),
829            Theme::catppuccin_mocha(),
830            Theme::catppuccin_latte(),
831            Theme::tokyo_night(),
832            Theme::tokyo_night_storm(),
833            Theme::solarized_dark(),
834            Theme::solarized_light(),
835            Theme::nord(),
836        ];
837        for theme in themes {
838            let toml_string = toml::to_string_pretty(&theme).unwrap();
839            let roundtrip: Theme = toml::from_str(&toml_string).unwrap();
840            assert_eq!(theme.name, roundtrip.name);
841            assert_eq!(theme.bg, roundtrip.bg);
842        }
843    }
844
845    #[test]
846    fn test_ansi_theme() {
847        let theme = Theme::ansi();
848        assert_eq!(theme.name, "ANSI");
849        assert_eq!(theme.bg, ThemeColor::Reset);
850        assert_eq!(theme.fg, ThemeColor::Reset);
851        assert_eq!(theme.bg_selected, ThemeColor::Ansi(4));
852        assert_eq!(theme.border_focused, ThemeColor::Ansi(6));
853        assert_eq!(theme.color_directory, ThemeColor::Ansi(12));
854    }
855}
kimun_notes/settings/themes.rs

kimun_notes/settings/
themes.rs
