import s from"@csstools/postcss-progressive-custom-properties";import{tokenize as e}from"@csstools/css-tokenizer";import{color as t,SyntaxFlag as r,serializeRGB as o,colorDataFitsRGB_Gamut as a,serializeP3 as n}from"@csstools/css-color-parser";import{replaceComponentValues as l,parseCommaSeparatedListOfComponentValues as i,isFunctionNode as p,stringify as u}from"@csstools/css-parser-algorithms";function hasFallback(s){const e=s.parent;if(!e)return!1;const t=s.prop.toLowerCase(),r=e.index(s);for(let s=0;s<r;s++){const r=e.nodes[s];if("decl"===r.type&&r.prop.toLowerCase()===t)return!0}return!1}function hasSupportsAtRuleAncestor(s){let e=s.parent;for(;e;)if("atrule"===e.type){if("supports"===e.name.toLowerCase()){if(-1!==e.params.toLowerCase().indexOf("oklab("))return!0;if(-1!==e.params.toLowerCase().indexOf("oklch("))return!0}e=e.parent}else e=e.parent;return!1}const c=/(oklab|oklch)\(/i,f=/^(oklab|oklch)$/i,basePlugin=s=>({postcssPlugin:"postcss-oklab-function",Declaration:m=>{const b=m.value;if(!c.test(b))return;if(hasFallback(m))return;if(hasSupportsAtRuleAncestor(m))return;const g=e({css:b}),y=l(i(g),(s=>{if(!p(s)||!f.test(s.getName()))return;const e=t(s);return e&&!(e.syntaxFlags.has(r.Experimental)||e.syntaxFlags.has(r.HasNoneKeywords)||e.syntaxFlags.has(r.RelativeColorSyntax))?o(e):void 0})),d=u(y);if(d===b)return;let h=d;s?.subFeatures.displayP3&&(h=u(l(i(g),(s=>{if(!p(s)||!f.test(s.getName()))return;const e=t(s);return e&&!(e.syntaxFlags.has(r.Experimental)||e.syntaxFlags.has(r.HasNoneKeywords)||e.syntaxFlags.has(r.RelativeColorSyntax))?a(e)?o(e):n(e):void 0})))),m.cloneBefore({value:d}),s?.subFeatures.displayP3&&h!==d&&m.cloneBefore({value:h}),s?.preserve||m.remove()}});basePlugin.postcss=!0;const postcssPlugin=e=>{const t=Object.assign({enableProgressiveCustomProperties:!0,preserve:!1,subFeatures:{displayP3:!0}},e);return t.subFeatures=Object.assign({displayP3:!0},t.subFeatures),t.enableProgressiveCustomProperties&&(t.preserve||t.subFeatures.displayP3)?{postcssPlugin:"postcss-oklab-function",plugins:[s(),basePlugin(t)]}:basePlugin(t)};postcssPlugin.postcss=!0;export{postcssPlugin as default};