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import { DIFFS_TAG_NAME, FileDiff } from "@pierre/diffs"
import { PreloadMultiFileDiffResult } from "@pierre/diffs/ssr"
import { onCleanup, onMount, Show, splitProps } from "solid-js"
import { Dynamic, isServer } from "solid-js/web"
import { createDefaultOptions, styleVariables, type DiffProps } from "../pierre"
import { useWorkerPool } from "../context/worker-pool"
export type SSRDiffProps<T = {}> = DiffProps<T> & {
preloadedDiff: PreloadMultiFileDiffResult<T>
}
export function Diff<T>(props: SSRDiffProps<T>) {
let container!: HTMLDivElement
let fileDiffRef!: HTMLElement
const [local, others] = splitProps(props, ["before", "after", "class", "classList", "annotations"])
const workerPool = useWorkerPool(props.diffStyle)
let fileDiffInstance: FileDiff<T> | undefined
const cleanupFunctions: Array<() => void> = []
onMount(() => {
if (isServer || !props.preloadedDiff) return
fileDiffInstance = new FileDiff<T>(
{
...createDefaultOptions(props.diffStyle),
...others,
...props.preloadedDiff,
},
workerPool,
)
// @ts-expect-error - fileContainer is private but needed for SSR hydration
fileDiffInstance.fileContainer = fileDiffRef
fileDiffInstance.hydrate({
oldFile: local.before,
newFile: local.after,
lineAnnotations: local.annotations,
fileContainer: fileDiffRef,
containerWrapper: container,
})
// Hydrate annotation slots with interactive SolidJS components
// if (props.annotations.length > 0 && props.renderAnnotation != null) {
// for (const annotation of props.annotations) {
// const slotName = `annotation-${annotation.side}-${annotation.lineNumber}`;
// const slotElement = fileDiffRef.querySelector(
// `[slot="${slotName}"]`
// ) as HTMLElement;
//
// if (slotElement != null) {
// // Clear the static server-rendered content from the slot
// slotElement.innerHTML = '';
//
// // Mount a fresh SolidJS component into this slot using render().
// // This enables full SolidJS reactivity (signals, effects, etc.)
// const dispose = render(
// () => props.renderAnnotation!(annotation),
// slotElement
// );
// cleanupFunctions.push(dispose);
// }
// }
// }
})
onCleanup(() => {
// Clean up FileDiff event handlers and dispose SolidJS components
fileDiffInstance?.cleanUp()
cleanupFunctions.forEach((dispose) => dispose())
})
return (
<div data-component="diff" style={styleVariables} ref={container}>
<Dynamic component={DIFFS_TAG_NAME} ref={fileDiffRef} id="ssr-diff">
<Show when={isServer}>
<template shadowrootmode="open" innerHTML={props.preloadedDiff.prerenderedHTML} />
</Show>
</Dynamic>
</div>
)
}
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