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SimplePanel.tsx
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SimplePanel.tsx
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import React, { useState } from 'react';
import { PanelProps } from '@grafana/data';
import { SimplePanelOptions } from 'types';
import { Input, Button, Alert, Field, FieldSet, Cascader, SecretInput, Checkbox } from '@grafana/ui';
import { Buffer } from 'buffer';
interface Props extends PanelProps<SimplePanelOptions> {
onOptionsChange: (options: SimplePanelOptions) => void;
}
export const SimplePanel: React.FC<Props> = ({ options, data, width, height, onOptionsChange }) => {
const [logMessage, setLogMessage] = useState("Fill in the necessary information and send the downlink.");
const [alertVariant, setAlertVariant] = useState<'info' | 'error' | 'warning' | 'success'>('info');
const [ttnServer, setTTNServer] = useState(options.targetTTNServer ? options.targetTTNServer : 'https://eu1.cloud.thethings.network');
const [isAPIKeyConfigured, setIsAPIKeyConfigured] = useState<boolean>(options.targetAPIkey !== '' && options.targetAPIkey !== undefined);
const [appName, setAppName] = useState(options.targetAppName);
const [endDeviceName, setEndDeviceName] = useState(options.targetEndDeviceName);
const [fPort, setFport] = useState("1");
const [priority, setPriority] = useState('NORMAL');
const [insertMode, setInsertMode] = useState('replace');
const [confirmedDownlink, setConfirmedDownlink] = useState<boolean>(false);
const priorityOptions = [
{label: 'Lowest', value: 'LOWEST',},
{label: 'Low', value: 'LOW',},
{label: 'Below normal', value: 'BELOW_NORMAL',},
{label: 'Normal', value: 'NORMAL',},
{label: 'Above normal', value: 'ABOVE_NORMAL',},
{label: 'High', value: 'HIGH',},
{label: 'Highest', value: 'HIGHEST',},
];
const insertModeOptions = [
{label: 'Push to downlink queue', value: 'push',},
{label: 'Replace downlink queue', value: 'replace',},
];
const [payloadBytes, setPayloadBytes] = useState("");
function isValidHexPayload(payload: string): boolean {
const hexRegex = /^[0-9a-fA-F]+$/;
return hexRegex.test(payload);
}
const sendPostRequest = async () => { // Method for send POST request
if (!ttnServer || ttnServer.trim() === '') { // Check if TTN server is not empty
setAlertVariant('error');
setLogMessage('TTN server is empty!');
return;
}
if (!options.targetAPIkey || options.targetAPIkey.trim() === '') { // Check if API key entry is not empty
setAlertVariant('error');
setLogMessage('API key is empty!');
return;
}
if (!appName || appName.trim() === '') { // Check if Application name is not empty
setAlertVariant('error');
setLogMessage('Application name is empty!');
return;
}
if (!endDeviceName || endDeviceName.trim() === '') { // Check if End device entry is not empty
setAlertVariant('error');
setLogMessage('End device name is empty!');
return;
}
if (payloadBytes === '') { // Check if Payload entry is not empty
setAlertVariant('error');
setLogMessage('Payload is empty!');
return;
}
if (!isValidHexPayload(payloadBytes)) { // Check if Payload is a hex value
setAlertVariant('error');
setLogMessage('Payload must be a hex value.');
return;
}
if (payloadBytes.length % 2 !== 0) { // Check if Payload is a complete hex value
setAlertVariant('error');
setLogMessage('Payload must be a complete hex value');
return;
}
// targetUrl = 'https://eu1.cloud.thethings.network/api/v3/as/applications/' + appName + '/devices/' + endDeviceName + '/down/' + insertMode;
const targetUrl = ttnServer + '/api/v3/as/applications/' + appName + '/devices/' + endDeviceName + '/down/' + insertMode;
const payloadBase64 = Buffer.from(payloadBytes, 'hex').toString('base64') // Encoding bytes payload to base64
const header = { // POST request header
'Authorization': `Bearer ${options.targetAPIkey}`,
'Accept': 'application/json',
'Content-Type': 'application/json',
'User-Agent': 'my-integration/my-integration-version',
};
const data = { // POST request data
"downlinks": [
{
"frm_payload": payloadBase64,
"f_port": parseInt(fPort, 10),
"confirmed": confirmedDownlink,
"priority": priority
}
]
};
try {
const response = await fetch(targetUrl, { // POST request
method: 'POST',
headers: header,
body: JSON.stringify(data)
});
if (!response.ok) {
throw new Error(`HTTP error ${response.status}`);
} else {
setAlertVariant('success');
setLogMessage(`Success: ${response.status}`);
}
} catch (error) {
setAlertVariant('error');
setLogMessage(`Error: ${(error as Error).message}`);
}
};
const handleSaveTTS = () => { // Handler for saving TTS settings
setIsAPIKeyConfigured(options.targetAPIkey !== '');
onOptionsChange({
...options,
targetAppName: appName,
targetEndDeviceName: endDeviceName,
targetTTNServer: ttnServer,
});
setAlertVariant('warning');
setLogMessage('TTS settings saved! Now please save the dashboard!');
};
const handleAPIKeyChange = (event: React.ChangeEvent<HTMLInputElement>) => { // Handler for API key changes
onOptionsChange({ ...options, targetAPIkey: event.target.value });
};
const handleAPIkeyReset = () => { // Handler for API key reset
onOptionsChange({ ...options, targetAPIkey: '' });
setIsAPIKeyConfigured(false);
};
// Below is the section with the plugin graphics, where the elements are defined and the function calls that are bound to the elements
return (
<div style={{ display: 'flex', flexDirection: 'column', flex:1, justifyContent: 'center', height, width, paddingTop: '1%', paddingRight: '1%', paddingLeft: '1%', paddingBottom: '1%'}}>
<div style={{ display: 'flex', flexDirection: 'column', justifyContent: 'top', marginTop: '2%', marginBottom: '2%', marginLeft: '2%', marginRight: '2%'}}>
<Alert title={logMessage.toString()} severity={alertVariant} />
</div>
<div style={{ display: 'flex', marginLeft: '1%', marginRight: '1%'}}>
<FieldSet label="TTS settings" style={{ marginLeft: '1%', marginRight: '5%', flex:1}}>
<Field label="TTN server">
<Input
value={ttnServer}
name="ttnServer"
placeholder="URL of the TTN cluster"
onChange={(e) => setTTNServer(e.currentTarget.value)}
/>
</Field>
<Field label="API key">
<SecretInput
value={options.targetAPIkey}
name="apiKey"
isConfigured={isAPIKeyConfigured}
placeholder="Enter API key"
onChange={(event: React.ChangeEvent<HTMLInputElement>) => handleAPIKeyChange(event)}
onReset={handleAPIkeyReset}
/>
</Field>
<Field label="Application name">
<Input
value={appName}
name="appName"
placeholder="Application name"
onChange={(e) => setAppName(e.currentTarget.value)}
/>
</Field>
<Field label="End device name">
<Input
value={endDeviceName}
name="endDeviceName"
placeholder="End device name"
onChange={(e) => setEndDeviceName(e.currentTarget.value)}
/>
</Field>
<Button onClick={handleSaveTTS}>Save</Button>
</FieldSet>
<FieldSet label="Downlink" style={{ marginLeft: '5%', marginRight: '1%', flex:1}}>
<Field label="FPort">
<Input
value={fPort}
name="fPort"
type="number"
min="1"
max="223"
onChange={(e) => {
const value = parseInt(e.currentTarget.value, 10);
if (value >= 1 && value <= 223) {
setFport(e.currentTarget.value);
}
}}
/>
</Field>
<Field label="Priority">
<Cascader
options={priorityOptions}
initialValue={priority}
onSelect={(value) => setPriority(value)}
/>
</Field>
<Field label="Insert mode">
<Cascader
options={insertModeOptions}
initialValue={insertMode}
onSelect={(value) => setInsertMode(value)}
/>
</Field>
<Field>
<div style={{ marginTop: '2%', marginBottom: '2%' }}>
<Checkbox
label="Confirmed downlink"
value={confirmedDownlink}
onChange={(event) => setConfirmedDownlink(event.currentTarget.checked)}
/>
</div>
</Field>
<Field label="Payload - Bytes">
<Input
pattern="^[0-9a-fA-F]*$"
onChange={(e) => setPayloadBytes(e.currentTarget.value)}
/>
</Field>
<Button onClick={sendPostRequest}>Send</Button>
</FieldSet>
</div>
</div>
);
};