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<script lang="ts" setup>
import type { EdgeProps, Position } from '@vue-flow/core'
import { EdgeText, getBezierPath } from '@vue-flow/core'
import type { CSSProperties } from '@vue/runtime-dom'
import type { EdgeData } from './utils'
import { computed, toRef } from '#imports'
interface RelationEdgeProps extends EdgeProps<EdgeData> {
id: string
sourceX: number
sourceY: number
targetX: number
targetY: number
sourcePosition: Position
targetPosition: Position
data: EdgeData
style: CSSProperties
selected?: boolean
showSkeleton: boolean
markerEnd: string
events: EdgeProps['events']
sourceNode: EdgeProps['sourceNode']
targetNode: EdgeProps['targetNode']
}
const props = defineProps<RelationEdgeProps>()
const baseStroke = 2
const data = toRef(props, 'data')
const isHovering = ref(false)
const edgePath = computed(() => {
if (data.value.isSelfRelation) {
const { sourceX, sourceY, targetX, targetY } = props
const radiusX = (sourceX - targetX) * 0.6
const radiusY = 50
return [`M ${sourceX} ${sourceY} A ${radiusX} ${radiusY} 0 1 0 ${targetX} ${targetY}`]
}
return getBezierPath({ ...props })
})
props.events?.mouseEnter?.(() => {
isHovering.value = true
})
props.events?.mouseLeave?.(() => {
isHovering.value = false
})
</script>
<script lang="ts">
export default {
inheritAttrs: false,
}
</script>
<template>
<defs>
<linearGradient id="linear-gradient" x1="-28.83" y1="770.92" x2="771.05" y2="-28.95" gradientUnits="userSpaceOnUse">
<stop offset="0" stop-color="#06b6d4" />
<stop offset="0.18" stop-color="#155e75" />
<stop offset="0.49" stop-color="#84cc16" />
<stop offset="0.88" stop-color="#10b981" />
<stop offset="0.99" stop-color="#047857" />
</linearGradient>
</defs>
<Transition name="layout" :duration="50" mode="in-out">
<path
v-if="selected || isHovering"
style="stroke: url(#linear-gradient)"
:stroke-width="(showSkeleton ? baseStroke * 12 : baseStroke * 8) / (selected || isHovering ? 2 : 1)"
fill="none"
:d="edgePath[0]"
:marker-end="showSkeleton ? markerEnd : ''"
/>
<path
v-else
:id="id"
class="stroke-slate-500"
:style="style"
:stroke-width="showSkeleton ? baseStroke * 4 : baseStroke"
fill="none"
:d="edgePath[0]"
:marker-end="showSkeleton ? markerEnd : ''"
/>
</Transition>
<path class="opacity-0" :stroke-width="showSkeleton ? baseStroke * 12 : baseStroke * 8" fill="none" :d="edgePath[0]" />
<Transition name="layout">
<EdgeText
v-if="data.label?.length > 0"
:key="`edge-text-${id}.${showSkeleton}`"
class="color-transition"
:class="[
selected || isHovering ? 'opacity-100' : 'opacity-0 !pointer-events-none',
showSkeleton ? '!text-6xl' : '!text-xs',
`nc-erd-table-label-${data.label.toLowerCase().replace(' ', '-').replace('\(', '').replace(')', '')}`,
]"
:x="edgePath[1]"
:y="edgePath[2]"
:label="showSkeleton ? data.simpleLabel : data.label"
:label-style="{ fill: 'white', fontSize: `${showSkeleton ? baseStroke * 2 : baseStroke / 2}rem` }"
:label-show-bg="true"
:label-bg-style="{ fill: data.color }"
:label-bg-padding="[8, 6]"
:label-bg-border-radius="2"
/>
</Transition>
<template v-if="!showSkeleton">
<rect
class="nc-erd-edge-rect"
:x="sourceX"
:y="sourceY - 4"
:width="8"
:height="8"
fill="#fff"
:stroke="sourceNode.data.color"
:stroke-width="2"
:transform="`rotate(45,${sourceX + 2},${sourceY - 4})`"
/>
<rect
v-if="data.isManyToMany"
class="nc-erd-edge-rect"
:x="targetX"
:y="targetY - 4"
:width="8"
:height="8"
fill="#fff"
:stroke="sourceNode.data.color"
:stroke-width="2"
:transform="`rotate(45,${targetX + 2},${targetY - 4})`"
/>
<circle
v-else
class="nc-erd-edge-circle"
:cx="targetX"
:cy="targetY"
fill="#fff"
:r="5"
:stroke="targetNode.data.color"
:stroke-width="2"
/>
</template>
</template>