From 048bf777997bdbf599240645fc66612c98abf3c2 Mon Sep 17 00:00:00 2001
From: vincent van beek <vincent@vlogic.nl>
Date: Fri, 27 Mar 2026 16:49:40 +0100
Subject: Add import topology (#393)

* add a the posibility to import and export topogies in JSON format

* fix web-runner integration, there were several bugs and mismatches between new implementations in OpenDC  and the UI
---
 .../components/projects/ImportTopologyModal.js     | 131 +++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 opendc-web/opendc-web-server/src/main/webui/components/projects/ImportTopologyModal.js

(limited to 'opendc-web/opendc-web-server/src/main/webui/components/projects/ImportTopologyModal.js')

diff --git a/opendc-web/opendc-web-server/src/main/webui/components/projects/ImportTopologyModal.js b/opendc-web/opendc-web-server/src/main/webui/components/projects/ImportTopologyModal.js
new file mode 100644
index 00000000..d8f38426
--- /dev/null
+++ b/opendc-web/opendc-web-server/src/main/webui/components/projects/ImportTopologyModal.js
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2021 AtLarge Research
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+import React, { useState } from 'react'
+import PropTypes from 'prop-types'
+import {
+    Form,
+    FormGroup,
+    FileUpload,
+    Alert,
+} from '@patternfly/react-core'
+import Modal from '../util/modals/Modal'
+
+function ImportTopologyModal({ isOpen, onCancel, onSubmit, topologies = [] }) {
+    const [fileValue, setFileValue] = useState('')
+    const [fileName, setFileName] = useState('')
+    const [isLoading, setIsLoading] = useState(false)
+    const [error, setError] = useState(null)
+
+    const handleFileChange = (value, filename) => {
+        setFileValue(value)
+        setFileName(filename)
+    }
+
+    const handleFileReadStarted = () => setIsLoading(true)
+    const handleFileReadFinished = () => setIsLoading(false)
+
+    const clearState = () => {
+        setFileValue('')
+        setFileName('')
+        setError(null)
+    }
+
+    const onCancelProxy = () => {
+        onCancel()
+        clearState()
+    }
+
+    const handleFormSubmit = (event) => {
+        if (event) {
+            event.preventDefault()
+        }
+
+        if (!fileValue) {
+            setError('Please upload a topology JSON file.')
+            return
+        }
+
+        try {
+            const topology = JSON.parse(fileValue)
+            if (!topology.name || !topology.rooms) {
+                setError('Invalid topology format. Name and rooms are required.')
+                return
+            }
+
+            if (topologies.some((t) => t.name === topology.name)) {
+                setError('A topology with the name "' + topology.name + '" already exists.')
+                return
+            }
+
+            onSubmit(topology)
+            clearState()
+        } catch (err) {
+            setError('Failed to parse JSON: ' + err.message)
+        }
+    }
+
+    return (
+        <Modal
+            title="Import Topology"
+            isOpen={isOpen}
+            onCancel={onCancelProxy}
+            onSubmit={handleFormSubmit}
+            submitButtonText="Import"
+        >
+            <Form onSubmit={handleFormSubmit}>
+                {error && (
+                    <Alert variant="danger" title={error} isInline />
+                )}
+                <FormGroup
+                    label="Topology JSON File"
+                    isRequired
+                    fieldId="topology-file"
+                    helperText="Upload the JSON file of the topology you want to import."
+                >
+                    <FileUpload
+                        id="topology-file"
+                        type="text"
+                        value={fileValue}
+                        filename={fileName}
+                        onChange={handleFileChange}
+                        onReadStarted={handleFileReadStarted}
+                        onReadFinished={handleFileReadFinished}
+                        isLoading={isLoading}
+                        dropzoneProps={{
+                            accept: '.json',
+                        }}
+                    />
+                </FormGroup>
+            </Form>
+        </Modal>
+    )
+}
+
+ImportTopologyModal.propTypes = {
+    isOpen: PropTypes.bool.isRequired,
+    onCancel: PropTypes.func.isRequired,
+    onSubmit: PropTypes.func.isRequired,
+    topologies: PropTypes.array,
+}
+
+export default ImportTopologyModal
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