<template>
  <BasePopup
    ref="basePopup"
    id="element-popup"
    :display-css="displayedCss"
    :editable-css="elementCss"
    :popup-width="800"
    :popup-height="600"
    @close="close"
    @css-input="handleCssInput"
    @toggle-inheritance="toggleInheritance"
  >
    <template #header-left>
      <span class="element-label">{{ selector || '' }}</span>
      <span class="instance-count">{{ elementInstanceCount }} instances</span>
    </template>

    <template #controls>
      <!-- Font Family -->
      <div class="settings-subsection">
        <div class="field field-font" :class="{ 'field--view-only': inheritanceLocked }">
          <label class="label-with-tooltip" data-css="font-family">Police</label>
          <div class="field-font__options">
            <select v-model="fontFamily" :disabled="inheritanceLocked">
              <option v-for="f in fonts" :key="f" :value="f">{{ f }}</option>
            </select>
            <div class="field-checkbox">
              <input type="checkbox" v-model="italic" :disabled="inheritanceLocked" />
              <label class="label-with-tooltip" data-css="font-style">Italique</label>
            </div>
            <div class="field-checkbox">
              <input type="checkbox" v-model="bold" :disabled="inheritanceLocked" />
              <label class="label-with-tooltip" data-css="font-weight">Gras</label>
            </div>
          </div>
        </div>
      </div>

      <!-- Font Size -->
      <div class="settings-subsection">
        <div class="field" :class="{ 'field--view-only': inheritanceLocked }">
          <label class="label-with-tooltip" data-css="font-size">Taille du texte</label>
          <div class="input-with-unit">
            <NumberInput
              v-model="fontSize.value"
              :min="6"
              :step="1"
              :disabled="inheritanceLocked"
            />
            <div class="unit-toggle">
              <button
                type="button"
                :class="{ active: fontSize.unit === 'px' }"
                :disabled="inheritanceLocked"
                @click="updateUnitPropUnit(fontSize, 'px')"
              >
                px
              </button>
            </div>
          </div>
        </div>
      </div>


      <!-- LineHeight -->
      <div class="settings-subsection">
        <div class="field" :class="{ 'field--view-only': inheritanceLocked }">
          <label class="label-with-tooltip" data-css="line-height">Interlignage</label>
          <div class="input-with-unit">
            <NumberInput
              v-model="lineHeight.value"
              :min="0"
              :step="1"
              :disabled="inheritanceLocked"
            />
            <div class="unit-toggle">
              <button
                type="button"
                :class="{ active: lineHeight.unit === 'px' }"
                :disabled="inheritanceLocked"
                @click="updateUnitPropUnit(lineHeight, 'px')"
              >
                px
              </button>
            </div>
          </div>
        </div>
      </div>


      <!-- Text Alignment -->
      <div class="settings-subsection">
        <div class="field" :class="{ 'field--view-only': inheritanceLocked }">
          <label class="label-with-tooltip" data-css="text-align">Alignement</label>
          <select v-model="textAlign" :disabled="inheritanceLocked">
            <option value="left">Gauche</option>
            <option value="center">Centre</option>
            <option value="right">Droite</option>
            <option value="justify">Justifié</option>
          </select>
        </div>
      </div>

      <!-- Bordure -->
      <div class="settings-subsection">
        <div class="field field-border" :class="{ 'field--view-only': inheritanceLocked }">
          <div class="settings-subsection-header">
          <label class="label-with-tooltip" data-css="border">Bordure</label>
          </div>
          <div class="field-border__options">
            <div class="field-border__option">
              <label class="label-with-tooltip" data-css="border-width">Épaisseur</label>
              <div class="input-with-unit">
                <NumberInput
                  v-model="borderWidth.value"
                  :min="0"
                  :step="1"
                  :disabled="inheritanceLocked"
                />
                <div class="unit-toggle">
                  <button type="button" class="active" :disabled="inheritanceLocked">px</button>
                </div>
              </div>
            </div>
            <div class="field-border__option">
              <label class="label-with-tooltip" data-css="border-style">Style</label>
              <select v-model="borderStyle" :disabled="inheritanceLocked">
                <option value="solid">Plein</option>
                <option value="dotted">Pointillés</option>
                <option value="dashed">Tirets</option>
                <option value="double">Double</option>
              </select>
            </div>
            <div class="field-border__option">
              <label class="label-with-tooltip" data-css="border-color">Couleur</label>
              <div class="input-with-color">
                <input
                  ref="borderColorInput"
                  type="text"
                  v-model="borderColor"
                  :disabled="inheritanceLocked"
                  data-coloris
                />
              </div>
            </div>
          </div>
        </div>
      </div>

      <!-- Color -->
      <div class="settings-subsection">
        <div class="field field-simple" :class="{ 'field--view-only': inheritanceLocked }">
          <label class="label-with-tooltip" data-css="color">Couleur du texte</label>
          <div class="input-with-color">
            <input
              ref="colorInput"
              type="text"
              v-model="color"
              :disabled="inheritanceLocked"
              data-coloris
            />
          </div>
        </div>
      </div>

      <!-- Background -->
      <div class="settings-subsection">
        <div class="field field-simple" :class="{ 'field--view-only': inheritanceLocked }">
          <label class="label-with-tooltip" data-css="background">Arrière-plan</label>
          <div class="input-with-color">
            <input
              ref="backgroundInput"
              type="text"
              v-model="background"
              :disabled="inheritanceLocked"
              data-coloris
            />
          </div>
        </div>
      </div>

      <!-- Outer Margins -->
      <div class="settings-subsection">
        <div class="settings-subsection-header">
          <span class="label-with-tooltip" data-css="margin">Marges extérieures</span>
          <button
            type="button"
            class="lock-toggle"
            :class="{ locked: marginLocked }"
            :disabled="inheritanceLocked"
            @click="marginLocked = !marginLocked"
            :title="marginLocked ? 'Déverrouiller (modifier indépendamment)' : 'Verrouiller (modifier ensemble)'"
          >
            <svg v-if="marginLocked" width="11" height="13" viewBox="0 0 11 13" fill="none">
              <rect x="1" y="5.5" width="9" height="7" rx="1" fill="currentColor"/>
              <path d="M2.5 5.5V3.5a3 3 0 0 1 6 0v2" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"/>
            </svg>
            <svg v-else width="11" height="13" viewBox="0 0 11 13" fill="none">
              <rect x="1" y="5.5" width="9" height="7" rx="1" fill="currentColor"/>
              <path d="M2.5 5.5V3.5a3 3 0 0 1 6 0" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"/>
            </svg>
          </button>
        </div>
        <div
          v-for="side in sides"
          :key="side.key"
          class="field field-margin"
          :class="{ 'field--view-only': inheritanceLocked }"
        >
          <label class="label-with-tooltip" :data-css="`margin-${side.key}`">{{ side.label }}</label>
          <div class="input-with-unit">
            <NumberInput
              :modelValue="margin[side.key].value"
              :min="0"
              :step="1"
              :disabled="inheritanceLocked"
              @update:modelValue="(v) => updateMarginValue(side.key, v)"
            />
            <div class="unit-toggle">
              <button
                type="button"
                :class="{ active: margin[side.key].unit === 'mm' }"
                :disabled="inheritanceLocked"
                @click="updateMarginUnit(side.key, 'mm')"
              >mm</button>
              <button
                type="button"
                :class="{ active: margin[side.key].unit === 'px' }"
                :disabled="inheritanceLocked"
                @click="updateMarginUnit(side.key, 'px')"
              >px</button>
            </div>
          </div>
        </div>
      </div>

      <!-- Inner Margins (Padding) -->
      <div class="settings-subsection">
        <div class="settings-subsection-header">
          <span class="label-with-tooltip" data-css="padding">Marges intérieures</span>
          <button
            type="button"
            class="lock-toggle"
            :class="{ locked: paddingLocked }"
            :disabled="inheritanceLocked"
            @click="paddingLocked = !paddingLocked"
            :title="paddingLocked ? 'Déverrouiller (modifier indépendamment)' : 'Verrouiller (modifier ensemble)'"
          >
            <svg v-if="paddingLocked" width="11" height="13" viewBox="0 0 11 13" fill="none">
              <rect x="1" y="5.5" width="9" height="7" rx="1" fill="currentColor"/>
              <path d="M2.5 5.5V3.5a3 3 0 0 1 6 0v2" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"/>
            </svg>
            <svg v-else width="11" height="13" viewBox="0 0 11 13" fill="none">
              <rect x="1" y="5.5" width="9" height="7" rx="1" fill="currentColor"/>
              <path d="M2.5 5.5V3.5a3 3 0 0 1 6 0" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"/>
            </svg>
          </button>
        </div>
        <div
          v-for="side in sides"
          :key="side.key"
          class="field field-margin"
          :class="{ 'field--view-only': inheritanceLocked }"
        >
          <label class="label-with-tooltip" :data-css="`padding-${side.key}`">{{ side.label }}</label>
          <div class="input-with-unit">
            <NumberInput
              :modelValue="padding[side.key].value"
              :min="0"
              :step="1"
              :disabled="inheritanceLocked"
              @update:modelValue="(v) => updatePaddingValue(side.key, v)"
            />
            <div class="unit-toggle">
              <button
                type="button"
                :class="{ active: padding[side.key].unit === 'mm' }"
                :disabled="inheritanceLocked"
                @click="updatePaddingUnit(side.key, 'mm')"
              >mm</button>
              <button
                type="button"
                :class="{ active: padding[side.key].unit === 'px' }"
                :disabled="inheritanceLocked"
                @click="updatePaddingUnit(side.key, 'px')"
              >px</button>
            </div>
          </div>
        </div>
      </div>
    </template>
  </BasePopup>
</template>

<script setup>
import { ref, reactive, computed, watch, nextTick } from 'vue';
import { useStylesheetStore } from '../stores/stylesheet';
import { useDebounce } from '../composables/useDebounce';
import NumberInput from './ui/NumberInput.vue';
import BasePopup from './ui/BasePopup.vue';
import { convertUnit } from '../utils/unit-conversion';

const stylesheetStore = useStylesheetStore();

const props = defineProps({
  iframeRef: Object,
});

const emit = defineEmits(['close']);

const basePopup = ref(null);

const visible = computed(() => basePopup.value?.visible ?? false);
const inheritanceLocked = computed(() => basePopup.value?.inheritanceLocked ?? true);

const selector = ref('');
const selectedElement = ref(null);
const elementInstanceCount = ref(0);
const colorInput = ref(null);
const backgroundInput = ref(null);
const borderColorInput = ref(null);

let isUpdatingFromStore = false;
const { debouncedUpdate } = useDebounce(500);

// Style properties — flat refs for simple values, reactive for value+unit
const fontFamily = ref('Alegreya Sans');
const italic = ref(false);
const bold = ref(false);
const textAlign = ref('left');
const color = ref('rgb(0, 0, 0)');
const background = ref('transparent');
const fontSize = reactive({ value: 23, unit: 'px' });
const lineHeight = reactive({ value: 28, unit: 'px' });
const borderWidth = reactive({ value: 0, unit: 'px' });
const borderStyle = ref('solid');
const borderColor = ref('#000000');

const marginLocked = ref(true);
const margin = reactive({
  top: { value: 0, unit: 'mm' },
  right: { value: 0, unit: 'mm' },
  bottom: { value: 0, unit: 'mm' },
  left: { value: 0, unit: 'mm' },
});

const paddingLocked = ref(true);
const padding = reactive({
  top: { value: 0, unit: 'mm' },
  right: { value: 0, unit: 'mm' },
  bottom: { value: 0, unit: 'mm' },
  left: { value: 0, unit: 'mm' },
});

// Constants
const fonts = ['Alegreya Sans', 'Alegreya', 'Arial', 'Georgia', 'Times New Roman'];

// Style property descriptors
const styleProps = [
  { css: 'font-family', get: () => fontFamily.value, set: v => fontFamily.value = v.replace(/['"]/g, ''), debounce: false },
  { css: 'font-style', get: () => italic.value ? 'italic' : 'normal', set: v => italic.value = v === 'italic', debounce: false },
  { css: 'font-weight', get: () => bold.value ? 'bold' : 'normal', set: v => bold.value = v === 'bold' || parseInt(v) >= 700, debounce: false },
  { css: 'text-align', get: () => textAlign.value, set: v => textAlign.value = v, debounce: false },
  { css: 'color', get: () => color.value, set: v => color.value = v, debounce: true },
  { css: 'background', get: () => background.value, set: v => background.value = v, debounce: true },
  { css: 'border-style', get: () => borderStyle.value, set: v => borderStyle.value = v || 'solid', debounce: false },
  { css: 'border-color', get: () => borderColor.value, set: v => borderColor.value = v, debounce: true },
];

const unitProps = [
  { css: 'font-size', ref: fontSize, debounce: true },
  { css: 'line-height', ref: lineHeight, debounce: true },
  { css: 'border-width', ref: borderWidth, debounce: true },
];

const sides = [
  { key: 'top', label: 'Haut' },
  { key: 'bottom', label: 'Bas' },
  { key: 'left', label: 'Gauche' },
  { key: 'right', label: 'Droite' },
];

const updateMarginValue = (side, value) => {
  if (marginLocked.value) {
    for (const s of ['top', 'right', 'bottom', 'left']) margin[s].value = value;
  } else {
    margin[side].value = value;
  }
};

const updateMarginUnit = (side, unit) => {
  if (marginLocked.value) {
    for (const s of ['top', 'right', 'bottom', 'left']) {
      margin[s].value = convertUnit(margin[s].value, margin[s].unit, unit);
      margin[s].unit = unit;
    }
  } else {
    margin[side].value = convertUnit(margin[side].value, margin[side].unit, unit);
    margin[side].unit = unit;
  }
};

const updatePaddingValue = (side, value) => {
  if (paddingLocked.value) {
    for (const s of ['top', 'right', 'bottom', 'left']) padding[s].value = value;
  } else {
    padding[side].value = value;
  }
};

const updatePaddingUnit = (side, unit) => {
  if (paddingLocked.value) {
    for (const s of ['top', 'right', 'bottom', 'left']) {
      padding[s].value = convertUnit(padding[s].value, padding[s].unit, unit);
      padding[s].unit = unit;
    }
  } else {
    padding[side].value = convertUnit(padding[side].value, padding[side].unit, unit);
    padding[side].unit = unit;
  }
};

// Generic update: push a single property to the stylesheet store
const updateProp = (cssProp, value, unit) => {
  if (!selector.value) return;
  stylesheetStore.updateProperty(selector.value, cssProp, value, unit);
};

const updateUnitPropUnit = (prop, newUnit) => {
  prop.value = convertUnit(prop.value, prop.unit, newUnit);
  prop.unit = newUnit;
};

const getSelectorFromElement = (element) => {
  if (element.id) {
    return `#${element.id}`;
  }

  const tagName = element.tagName.toLowerCase();

  const classes = Array.from(element.classList).filter(
    (cls) => !['element-hovered', 'element-selected', 'page-hovered', 'page-selected'].includes(cls)
  );
  if (classes.length > 0) {
    return `${tagName}.${classes[0]}`;
  }

  return tagName;
};

const getInstanceCount = (sel) => {
  if (!props.iframeRef || !props.iframeRef.contentDocument) return 0;

  try {
    return props.iframeRef.contentDocument.querySelectorAll(sel).length;
  } catch (e) {
    return 0;
  }
};

const elementCss = computed(() => {
  if (!selector.value) return '';
  return stylesheetStore.extractBlock(selector.value) || '';
});

const generatePreviewCss = () => {
  if (!selector.value) return '';

  const properties = [];

  for (const prop of styleProps) {
    const val = prop.get();
    if (!val) continue;
    if (prop.css === 'font-style' && val !== 'italic') continue;
    if (prop.css === 'font-weight' && val === 'normal') continue;
    if ((prop.css === 'border-style' || prop.css === 'border-color') && borderWidth.value === 0) continue;
    properties.push(`  ${prop.css}: ${val};`);
  }

  for (const prop of unitProps) {
    if (prop.ref.value !== undefined && prop.ref.value !== null) {
      properties.push(`  ${prop.css}: ${prop.ref.value}${prop.ref.unit};`);
    }
  }

  for (const side of ['top', 'right', 'bottom', 'left']) {
    if (margin[side].value !== undefined && margin[side].value !== null) {
      properties.push(`  margin-${side}: ${margin[side].value}${margin[side].unit};`);
    }
  }
  for (const side of ['top', 'right', 'bottom', 'left']) {
    if (padding[side].value !== undefined && padding[side].value !== null) {
      properties.push(`  padding-${side}: ${padding[side].value}${padding[side].unit};`);
    }
  }

  if (properties.length === 0) return '';

  return `${selector.value} {\n${properties.join('\n')}\n}`;
};

const displayedCss = computed(() => {
  if (!selector.value) return '';

  if (!inheritanceLocked.value) {
    return elementCss.value || generatePreviewCss();
  }

  const preview = generatePreviewCss();
  if (!preview) return '';

  return '/* Héritage verrouillé - déverrouiller pour appliquer */\n/* ' +
         preview.split('\n').join('\n   ') +
         ' */';
});

const applyAllStyles = () => {
  if (!selector.value) return;
  for (const prop of styleProps) {
    updateProp(prop.css, prop.get());
  }
  for (const prop of unitProps) {
    updateProp(prop.css, prop.ref.value, prop.ref.unit);
  }
  for (const side of ['top', 'right', 'bottom', 'left']) {
    updateProp(`margin-${side}`, margin[side].value, margin[side].unit);
    updateProp(`padding-${side}`, padding[side].value, padding[side].unit);
  }
};

// Watchers — simple props
for (const prop of styleProps) {
  watch(prop.get, () => {
    if (isUpdatingFromStore) return;
    const fn = () => updateProp(prop.css, prop.get());
    prop.debounce ? debouncedUpdate(fn) : fn();
  });
}

// Watchers — unit props (watch both value and unit)
for (const prop of unitProps) {
  watch(() => prop.ref.value, () => {
    if (isUpdatingFromStore) return;
    const fn = () => updateProp(prop.css, prop.ref.value, prop.ref.unit);
    prop.debounce ? debouncedUpdate(fn) : fn();
  });
  watch(() => prop.ref.unit, () => {
    if (isUpdatingFromStore) return;
    updateProp(prop.css, prop.ref.value, prop.ref.unit);
  });
}

// Watchers — margin sides
watch(
  () => [margin.top.value, margin.right.value, margin.bottom.value, margin.left.value],
  () => {
    if (isUpdatingFromStore) return;
    debouncedUpdate(() => {
      for (const side of ['top', 'right', 'bottom', 'left']) {
        updateProp(`margin-${side}`, margin[side].value, margin[side].unit);
      }
    });
  }
);
watch(
  () => [margin.top.unit, margin.right.unit, margin.bottom.unit, margin.left.unit],
  () => {
    if (isUpdatingFromStore) return;
    for (const side of ['top', 'right', 'bottom', 'left']) {
      updateProp(`margin-${side}`, margin[side].value, margin[side].unit);
    }
  }
);

// Watchers — padding sides
watch(
  () => [padding.top.value, padding.right.value, padding.bottom.value, padding.left.value],
  () => {
    if (isUpdatingFromStore) return;
    debouncedUpdate(() => {
      for (const side of ['top', 'right', 'bottom', 'left']) {
        updateProp(`padding-${side}`, padding[side].value, padding[side].unit);
      }
    });
  }
);
watch(
  () => [padding.top.unit, padding.right.unit, padding.bottom.unit, padding.left.unit],
  () => {
    if (isUpdatingFromStore) return;
    for (const side of ['top', 'right', 'bottom', 'left']) {
      updateProp(`padding-${side}`, padding[side].value, padding[side].unit);
    }
  }
);

const handleCssInput = (newCss) => {
  const oldBlock = elementCss.value;
  if (oldBlock) {
    stylesheetStore.replaceInCustomCss(oldBlock, newCss);
  }
};

// Watch stylesheet changes to sync values
watch(
  () => stylesheetStore.customCss,
  () => {
    if (basePopup.value?.visible && !isUpdatingFromStore) {
      isUpdatingFromStore = true;
      loadValuesFromStylesheet();
      nextTick(() => { isUpdatingFromStore = false; });
    }
  }
);

// Also watch when exiting edit mode
watch(
  () => stylesheetStore.isEditing,
  (isEditing, wasEditing) => {
    if (basePopup.value?.visible && wasEditing && !isEditing && !isUpdatingFromStore) {
      isUpdatingFromStore = true;
      loadValuesFromStylesheet();
      nextTick(() => { isUpdatingFromStore = false; });
    }
  }
);

const loadValuesFromStylesheet = () => {
  if (!selector.value) return;

  try {
    // Simple props
    for (const prop of styleProps) {
      const data = stylesheetStore.extractValue(selector.value, prop.css);
      if (data) {
        const value = typeof data === 'string' ? data : data.value;
        prop.set(value);
      }
    }

    // Unit props
    for (const prop of unitProps) {
      const data = stylesheetStore.extractValue(selector.value, prop.css);
      if (data && data.value !== undefined) {
        prop.ref.value = data.value;
        prop.ref.unit = data.unit;
      }
    }

    // Margin sides — try individual first, fallback to shorthand
    const spacingSides = ['top', 'right', 'bottom', 'left'];
    let anyMarginFound = false;
    for (const side of spacingSides) {
      const data = stylesheetStore.extractValue(selector.value, `margin-${side}`);
      if (data && data.value !== undefined) {
        margin[side].value = data.value;
        margin[side].unit = data.unit;
        anyMarginFound = true;
      }
    }
    if (!anyMarginFound) {
      const data = stylesheetStore.extractValue(selector.value, 'margin');
      if (data && data.value !== undefined) {
        for (const side of spacingSides) {
          margin[side].value = data.value;
          margin[side].unit = data.unit;
        }
      }
    }

    // Padding sides — try individual first, fallback to shorthand
    let anyPaddingFound = false;
    for (const side of spacingSides) {
      const data = stylesheetStore.extractValue(selector.value, `padding-${side}`);
      if (data && data.value !== undefined) {
        padding[side].value = data.value;
        padding[side].unit = data.unit;
        anyPaddingFound = true;
      }
    }
    if (!anyPaddingFound) {
      const data = stylesheetStore.extractValue(selector.value, 'padding');
      if (data && data.value !== undefined) {
        for (const side of spacingSides) {
          padding[side].value = data.value;
          padding[side].unit = data.unit;
        }
      }
    }
  } catch (error) {
    console.error('Error loading values from stylesheet:', error);
  }
};

const open = (element, event, count = null) => {
  isUpdatingFromStore = true;

  selectedElement.value = element;
  selector.value = getSelectorFromElement(element);

  elementInstanceCount.value = count !== null ? count : getInstanceCount(selector.value);

  const blockState = stylesheetStore.getBlockState(selector.value);
  basePopup.value.inheritanceLocked = blockState !== 'active';

  loadValuesFromStylesheet();
  basePopup.value.open(event);

  nextTick(() => { isUpdatingFromStore = false; });
};

const close = () => {
  basePopup.value?.close();
  selector.value = '';
  selectedElement.value = null;
  emit('close');
};

const handleIframeClick = (event, targetElement = null, elementCount = null) => {
  const element = targetElement || event.target;

  if (element.tagName === 'BODY' || element.tagName === 'HTML') {
    close();
    return;
  }

  if (basePopup.value?.visible) {
    close();
    return;
  }

  open(element, event, elementCount);
};

const toggleInheritance = () => {
  const blockState = stylesheetStore.getBlockState(selector.value);

  if (basePopup.value.inheritanceLocked && blockState === 'commented') {
    stylesheetStore.uncommentCssBlock(selector.value);
    basePopup.value.inheritanceLocked = false;
  } else if (basePopup.value.inheritanceLocked && blockState === 'none') {
    if (selectedElement.value && props.iframeRef && props.iframeRef.contentWindow) {
      const cs = props.iframeRef.contentWindow.getComputedStyle(selectedElement.value);

      isUpdatingFromStore = true;

      fontFamily.value = cs.fontFamily.replace(/['"]/g, '').split(',')[0].trim();
      italic.value = cs.fontStyle === 'italic';
      bold.value = parseInt(cs.fontWeight) >= 700;

      const fontSizeMatch = cs.fontSize.match(/([\d.]+)(px|rem|em|pt)/);
      if (fontSizeMatch) {
        fontSize.value = parseFloat(fontSizeMatch[1]);
        fontSize.unit = fontSizeMatch[2];
      }

      const lineHeightMatch = cs.lineHeight.match(/([\d.]+)(px|rem|em|pt)/);
      if (lineHeightMatch) {
        lineHeight.value = parseFloat(lineHeightMatch[1]);
        lineHeight.unit = lineHeightMatch[2];
      }

      textAlign.value = cs.textAlign;
      color.value = cs.color;
      background.value = cs.backgroundColor;

      const borderWidthMatch = cs.borderTopWidth.match(/([\d.]+)(px)/);
      if (borderWidthMatch) {
        borderWidth.value = parseFloat(borderWidthMatch[1]);
        borderWidth.unit = 'px';
      }
      borderStyle.value = cs.borderTopStyle || 'solid';
      borderColor.value = cs.borderTopColor || '#000000';

      for (const side of ['top', 'right', 'bottom', 'left']) {
        const cssSide = side.charAt(0).toUpperCase() + side.slice(1);
        const marginMatch = cs[`margin${cssSide}`].match(/([\d.]+)(px|mm|pt)/);
        if (marginMatch) {
          margin[side].value = parseFloat(marginMatch[1]);
          margin[side].unit = marginMatch[2];
        }
        const paddingMatch = cs[`padding${cssSide}`].match(/([\d.]+)(px|mm|pt)/);
        if (paddingMatch) {
          padding[side].value = parseFloat(paddingMatch[1]);
          padding[side].unit = paddingMatch[2];
        }
      }

      isUpdatingFromStore = false;
    }

    applyAllStyles();
    basePopup.value.inheritanceLocked = false;
  } else if (!basePopup.value.inheritanceLocked && blockState === 'active') {
    stylesheetStore.commentCssBlock(selector.value);
    basePopup.value.inheritanceLocked = true;
  }
};

defineExpose({ handleIframeClick, close, visible });
</script>

<style scoped>
/* ElementPopup-specific styles (purple theme) */
.element-label {
  background: var(--color-purple);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 600;
}

.instance-count {
  color: var(--color-purple);
  font-size: 0.875rem;
}

.settings-subsection-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.lock-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  padding: 2px 4px;
  color: var(--color-text-muted, #999);
  transition: color 0.15s, border-color 0.15s;
}

.lock-toggle:hover:not(:disabled) {
  color: var(--color-text, #333);
  border-color: var(--color-border, #ccc);
}

.lock-toggle.locked {
  color: var(--color-purple, #7c3aed);
}

.lock-toggle:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
</style>
