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const plugin = require("tailwindcss/plugin");
const fs = require("fs");
const path = require("path");

module.exports = {
  content: ["./js/**/*.js", "../lib/*_web.ex", "../lib/*_web/**/*.*ex"],
  theme: {
    extend: {
      colors: {
        brand: "#FD4F00",
      },
    },
  },
  plugins: [
    require("@tailwindcss/forms"),
    plugin(({ addVariant }) =>
      addVariant("phx-no-feedback", [".phx-no-feedback&", ".phx-no-feedback &"])
    ),
    plugin(({ addVariant }) =>
      addVariant("phx-click-loading", [
        ".phx-click-loading&",
        ".phx-click-loading &",
      ])
    ),
    plugin(({ addVariant }) =>
      addVariant("phx-submit-loading", [
        ".phx-submit-loading&",
        ".phx-submit-loading &",
      ])
    ),
    plugin(({ addVariant }) =>
      addVariant("phx-change-loading", [
        ".phx-change-loading&",
        ".phx-change-loading &",
      ])
    ),

    plugin(function ({ matchComponents, theme }) {
      let iconsDir = path.join(__dirname, "../priv/hero_icons/optimized");
      let values = {};
      let icons = [
        ["", "/24/outline"],
        ["-solid", "/24/solid"],
        ["-mini", "/20/solid"],
      ];
      icons.forEach(([suffix, dir]) => {
        fs.readdirSync(path.join(iconsDir, dir)).map((file) => {
          let name = path.basename(file, ".svg") + suffix;
          values[name] = { name, fullPath: path.join(iconsDir, dir, file) };
        });
      });
      matchComponents(
        {
          hero: ({ name, fullPath }) => {
            let content = fs
              .readFileSync(fullPath)
              .toString()
              .replace(/\r?\n|\r/g, "");
            return {
              [`--hero-${name}`]: `url('data:image/svg+xml;utf8,${content}')`,
              "-webkit-mask": `var(--hero-${name})`,
              mask: `var(--hero-${name})`,
              "background-color": "currentColor",
              "vertical-align": "middle",
              display: "inline-block",
              width: theme("spacing.5"),
              height: theme("spacing.5"),
            };
          },
        },
        { values }
      );
    }),
  ],
};