tailwind-rs-core 0.15.4

Core types and utilities for tailwind-rs
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//! Flex Utilities Parser
//!
//! This module provides parsing logic for Tailwind CSS flex utilities,
//! such as `flex-1`, `flex-auto`, `flex-initial`, `flex-none`, etc.

use super::{UtilityParser, ParserCategory};
use crate::css_generator::types::CssProperty;
use std::collections::HashMap;

#[derive(Debug, Clone)]
pub struct FlexParser {
    flex_map: HashMap<String, String>,
    fraction_map: HashMap<String, String>,
}

impl FlexParser {
    pub fn new() -> Self {
        let mut flex_map = HashMap::new();
        flex_map.insert("flex-auto".to_string(), "auto".to_string());
        flex_map.insert("flex-initial".to_string(), "0 auto".to_string());
        flex_map.insert("flex-none".to_string(), "none".to_string());
        
        // Add flex-1 through flex-12
        for i in 1..=12 {
            flex_map.insert(format!("flex-{}", i), i.to_string());
        }

        let mut fraction_map = HashMap::new();
        fraction_map.insert("1/2".to_string(), "50%".to_string());
        fraction_map.insert("1/3".to_string(), "33.333333%".to_string());
        fraction_map.insert("2/3".to_string(), "66.666667%".to_string());
        fraction_map.insert("1/4".to_string(), "25%".to_string());
        fraction_map.insert("2/4".to_string(), "50%".to_string());
        fraction_map.insert("3/4".to_string(), "75%".to_string());
        fraction_map.insert("1/5".to_string(), "20%".to_string());
        fraction_map.insert("2/5".to_string(), "40%".to_string());
        fraction_map.insert("3/5".to_string(), "60%".to_string());
        fraction_map.insert("4/5".to_string(), "80%".to_string());
        fraction_map.insert("1/6".to_string(), "16.666667%".to_string());
        fraction_map.insert("2/6".to_string(), "33.333333%".to_string());
        fraction_map.insert("3/6".to_string(), "50%".to_string());
        fraction_map.insert("4/6".to_string(), "66.666667%".to_string());
        fraction_map.insert("5/6".to_string(), "83.333333%".to_string());
        fraction_map.insert("1/12".to_string(), "8.333333%".to_string());
        fraction_map.insert("2/12".to_string(), "16.666667%".to_string());
        fraction_map.insert("3/12".to_string(), "25%".to_string());
        fraction_map.insert("4/12".to_string(), "33.333333%".to_string());
        fraction_map.insert("5/12".to_string(), "41.666667%".to_string());
        fraction_map.insert("6/12".to_string(), "50%".to_string());
        fraction_map.insert("7/12".to_string(), "58.333333%".to_string());
        fraction_map.insert("8/12".to_string(), "66.666667%".to_string());
        fraction_map.insert("9/12".to_string(), "75%".to_string());
        fraction_map.insert("10/12".to_string(), "83.333333%".to_string());
        fraction_map.insert("11/12".to_string(), "91.666667%".to_string());

        Self { flex_map, fraction_map }
    }

    fn parse_flex_class(&self, class: &str) -> Option<Vec<CssProperty>> {
        if let Some(flex_value) = self.flex_map.get(class) {
            return Some(vec![CssProperty { name: "flex".to_string(), value: flex_value.clone(), important: false }]);
        }
        None
    }

    fn parse_flex_fraction_class(&self, class: &str) -> Option<Vec<CssProperty>> {
        if let Some(value) = class.strip_prefix("flex-") {
            if let Some(fraction_value) = self.fraction_map.get(value) {
                return Some(vec![CssProperty { name: "flex".to_string(), value: fraction_value.clone(), important: false }]);
            }
        }
        None
    }

    fn parse_arbitrary_flex_class(&self, class: &str) -> Option<Vec<CssProperty>> {
        if let Some(value) = class.strip_prefix("flex-[") {
            if let Some(value) = value.strip_suffix("]") {
                return Some(vec![CssProperty { name: "flex".to_string(), value: value.to_string(), important: false }]);
            }
        }
        None
    }

    fn parse_custom_property_flex_class(&self, class: &str) -> Option<Vec<CssProperty>> {
        if let Some(prop) = class.strip_prefix("flex-(") {
            if let Some(prop) = prop.strip_suffix(")") {
                return Some(vec![CssProperty { name: "flex".to_string(), value: format!("var({})", prop), important: false }]);
            }
        }
        None
    }
}

impl UtilityParser for FlexParser {
    fn parse_class(&self, class: &str) -> Option<Vec<CssProperty>> {
        self.parse_flex_class(class)
            .or_else(|| self.parse_flex_fraction_class(class))
            .or_else(|| self.parse_arbitrary_flex_class(class))
            .or_else(|| self.parse_custom_property_flex_class(class))
    }

    fn get_supported_patterns(&self) -> Vec<&'static str> {
        vec![
            "flex-1", "flex-2", "flex-3", "flex-4", "flex-5", "flex-6", "flex-7", "flex-8", "flex-9", "flex-10", "flex-11", "flex-12",
            "flex-auto", "flex-initial", "flex-none",
            "flex-1/2", "flex-1/3", "flex-2/3", "flex-1/4", "flex-2/4", "flex-3/4", "flex-1/5", "flex-2/5", "flex-3/5", "flex-4/5",
            "flex-1/6", "flex-2/6", "flex-3/6", "flex-4/6", "flex-5/6", "flex-1/12", "flex-2/12", "flex-3/12", "flex-4/12", "flex-5/12",
            "flex-6/12", "flex-7/12", "flex-8/12", "flex-9/12", "flex-10/12", "flex-11/12",
            "flex-[*]", "flex-(*)"
        ]
    }

    fn get_priority(&self) -> u32 { 70 }
    fn get_category(&self) -> ParserCategory { ParserCategory::Flexbox }
}

impl Default for FlexParser {
    fn default() -> Self { Self::new() }
}