import { useStylesheetStore } from '../stores/stylesheet';

export function useCssUpdater() {
  const store = useStylesheetStore();

  /**
   * Update or add a CSS property for a given selector
   */
  const updateStyle = (selector, property, value) => {
    const currentBlock = store.extractBlock(selector) || createRule(selector);

    if (currentBlock.includes(`${property}:`)) {
      const updatedBlock = currentBlock.replace(
        new RegExp(`(${property}:\\s*)[^;]+`, 'i'),
        `$1${value}`
      );
      store.content = store.content.replace(currentBlock, updatedBlock);
    } else {
      const updatedBlock = currentBlock.replace(
        /(\s*})$/,
        `  ${property}: ${value};\n$1`
      );
      store.content = store.content.replace(currentBlock, updatedBlock);
    }
  };

  /**
   * Remove a CSS property from a selector
   */
  const removeProperty = (selector, property) => {
    const currentBlock = store.extractBlock(selector);
    if (!currentBlock) return;

    const updatedBlock = currentBlock.replace(
      new RegExp(`\\s*${property}:\\s*[^;]+;\\n?`, 'gi'),
      ''
    );

    if (updatedBlock !== currentBlock) {
      store.content = store.content.replace(currentBlock, updatedBlock);
    }
  };

  /**
   * Remove multiple CSS properties from a selector
   */
  const removeProperties = (selector, properties) => {
    let currentBlock = store.extractBlock(selector);
    if (!currentBlock) return;

    let updatedBlock = currentBlock;
    for (const property of properties) {
      updatedBlock = updatedBlock.replace(
        new RegExp(`\\s*${property}:\\s*[^;]+;\\n?`, 'gi'),
        ''
      );
    }

    if (updatedBlock !== currentBlock) {
      store.content = store.content.replace(currentBlock, updatedBlock);
    }
  };

  /**
   * Create a new CSS rule for a selector
   */
  const createRule = (selector) => {
    store.content += `\n\n${selector} {\n}\n`;
    return `${selector} {\n}`;
  };

  /**
   * Remove detailed margin properties and set shorthand
   */
  const setMargin = (selector, value, unit) => {
    removeProperties(selector, ['margin-top', 'margin-right', 'margin-bottom', 'margin-left']);
    updateStyle(selector, 'margin', `${value}${unit}`);
  };

  /**
   * Remove shorthand margin and set detailed margins
   */
  const setDetailedMargins = (selector, top, right, bottom, left) => {
    removeProperty(selector, 'margin');
    updateStyle(selector, 'margin-top', `${top.value}${top.unit}`);
    updateStyle(selector, 'margin-right', `${right.value}${right.unit}`);
    updateStyle(selector, 'margin-bottom', `${bottom.value}${bottom.unit}`);
    updateStyle(selector, 'margin-left', `${left.value}${left.unit}`);
  };

  /**
   * Remove detailed padding properties and set shorthand
   */
  const setPadding = (selector, value, unit) => {
    removeProperties(selector, ['padding-top', 'padding-right', 'padding-bottom', 'padding-left']);
    updateStyle(selector, 'padding', `${value}${unit}`);
  };

  /**
   * Remove shorthand padding and set detailed padding
   */
  const setDetailedPadding = (selector, top, right, bottom, left) => {
    removeProperty(selector, 'padding');
    updateStyle(selector, 'padding-top', `${top.value}${top.unit}`);
    updateStyle(selector, 'padding-right', `${right.value}${right.unit}`);
    updateStyle(selector, 'padding-bottom', `${bottom.value}${bottom.unit}`);
    updateStyle(selector, 'padding-left', `${left.value}${left.unit}`);
  };

  return {
    updateStyle,
    removeProperty,
    removeProperties,
    createRule,
    setMargin,
    setDetailedMargins,
    setPadding,
    setDetailedPadding,
  };
}