<script setup>
// Define props that Vue Flow passes to custom nodes
const props = defineProps([
  'id',           // Node ID
  'data',         // Custom data object
  'selected',     // Selection state
  'label'         // Node label
])

// Computed for shape styling
const shapeStyle = computed(() => {
  return {
    width: `${props.data?.width || 300}px`,
    height: `${props.data?.height || 200}px`,
    '--node-bg-color': props.data?.backgroundColor || '#fefefe',
    '--node-border-color': props.data?.borderColor || '#d1d5db',
    '--node-text-color': props.data?.textColor || '#374151',
    backgroundColor: props.data?.backgroundColor || '#fefefe',
    border: `2px solid ${props.data?.borderColor || '#d1d5db'}`,
    borderRadius: '4px',
    position: 'relative',
    display: 'flex',
    alignItems: 'center',
    justifyContent: 'center',
    color: props.data?.textColor || '#374151',
    fontSize: '14px',
    fontWeight: '500',
    cursor: 'move',
    zIndex: props.data?.zIndex || -10 // Behind process nodes
  }
})

const displayLabel = computed(() => {
  return props.label || props.data?.label || ''
})

const displayDescription = computed(() => {
  return props.data?.description || ''
})
</script>

<template>
  <div 
    :class="['shape-node', 'rectangle-shape', { 'selected': selected }]"
    :style="shapeStyle"
  >
    <div class="shape-content" v-if="displayLabel || displayDescription">
      <div class="shape-label" v-if="displayLabel">{{ displayLabel }}</div>
      <div class="shape-description" v-if="displayDescription">{{ displayDescription }}</div>
    </div>
  </div>
</template>

<style scoped>
/* Shape node styles */
.shape-node {
  position: relative;
  transition: all 0.2s ease;
}

.shape-node.selected {
  border-color: #3b82f6 !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.shape-node:hover {
  border-color: #94a3b8 !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.shape-content {
  position: relative;
  z-index: 1;
  text-align: center;
  overflow: hidden;
}

.shape-label {
  font-weight: 500;
  margin-bottom: 4px;
  user-select: none;
  word-wrap: break-word;
}

.shape-description {
  font-size: 12px;
  opacity: 0.7;
  user-select: none;
  word-wrap: break-word;
}

.rectangle-shape {
  border-radius: 4px;
}

/* Ensure shapes don't interfere with node connections */
.shape-node * {
  pointer-events: none;
}

.shape-node {
  pointer-events: all;
}

/* Resize handles for shapes when selected */
.shape-node.selected::after {
  content: '';
  position: absolute;
  bottom: -4px;
  right: -4px;
  width: 8px;
  height: 8px;
  background: #3b82f6;
  border: 2px solid white;
  border-radius: 50%;
  cursor: nw-resize;
  pointer-events: all;
}
</style> 