//! Windows resolver: each role maps to a Segoe Fluent Icons codepoint,
//! rendered as text in the system font (never bundled).

use crate::IconRole;

/// The Segoe Fluent Icons codepoint for the role.
pub(crate) fn glyph(role: IconRole) -> Option<char> {
    let codepoint = match role {
        IconRole::Check => 0xE73E,        // CheckMark
        IconRole::Close => 0xE8BB,        // ChromeClose
        IconRole::ChevronDown => 0xE70D,  // ChevronDown
        IconRole::ChevronLeft => 0xE76B,  // ChevronLeft
        IconRole::ChevronRight => 0xE76C, // ChevronRight
        IconRole::ChevronUp => 0xE70E,    // ChevronUp
        IconRole::Plus => 0xE710,         // Add
        IconRole::Minus => 0xE738,        // Remove
        IconRole::Search => 0xE721,       // Search
        IconRole::Folder => 0xE8B7,       // Folder
        IconRole::Warning => 0xE7BA,      // Warning
        IconRole::Info => 0xE946,         // Info
    };
    char::from_u32(codepoint)
}

/// The system font the codepoints resolve against (Windows 11+).
pub(crate) const FONT_FAMILY: &str = "Segoe Fluent Icons";

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn every_role_maps_to_a_codepoint() {
        for role in crate::IconRole::all() {
            assert!(glyph(*role).is_some(), "missing codepoint for {role:?}");
        }
    }

    #[test]
    fn the_close_role_uses_the_chrome_close_glyph() {
        assert_eq!(glyph(IconRole::Close), Some('\u{E8BB}'));
    }
}