sdk-typescript/examples/browser/mermaid.html at main · open-workflow-specification/sdk-typescript · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <title>Open Workflow Specification ESM Mermaid Example</title>
    <base href="/" />
    <meta content="width=device-width, initial-scale=1" name="viewport" />
  </head>

  <body>
    <p>YAML or JSON:</p>
    <textarea id="input" rows="50" cols="100"></textarea>
    <div id="diagram-container"></div>
    <pre id="output"></pre>
    <script type="module">
      import { Classes, convertToMermaidCode } from '../../dist/index.mjs';
      import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';

      (async () => {
        const workflowDefinition = {
          document: {
            dsl: '1.0.3',
            namespace: 'examples',
            name: 'accumulate-room-readings',
            version: '0.1.0',
          },
          do: [
            {
              consumeReading: {
                listen: {
                  to: {
                    all: [
                      {
                        with: {
                          source: 'https://my.home.com/sensor',
                          type: 'my.home.sensors.temperature',
                        },
                        correlate: {
                          roomId: {
                            from: '.roomid',
                          },
                        },
                      },
                      {
                        with: {
                          source: 'https://my.home.com/sensor',
                          type: 'my.home.sensors.humidity',
                        },
                        correlate: {
                          roomId: {
                            from: '.roomid',
                          },
                        },
                      },
                    ],
                  },
                },
                output: {
                  as: '.data.reading',
                },
              },
            },
            {
              logReading: {
                for: {
                  each: 'reading',
                  in: '.readings',
                },
                do: [
                  {
                    callOrderService: {
                      call: 'openapi',
                      with: {
                        document: {
                          endpoint: 'http://myorg.io/ordersservices.json',
                        },
                        operationId: 'logreading',
                      },
                    },
                  },
                ],
              },
            },
            {
              generateReport: {
                call: 'openapi',
                with: {
                  document: {
                    endpoint: 'http://myorg.io/ordersservices.json',
                  },
                  operationId: 'produceReport',
                },
              },
            },
          ],
          timeout: {
            after: {
              hours: 1,
            },
          },
        };
        const diagramContainerEl = document.getElementById('diagram-container');
        const inputTextarea = document.getElementById('input');
        const processWorkflow = async () => {
          try {
            const workflow = Classes.Workflow.deserialize(inputTextarea.value);
            const mermaidCode = convertToMermaidCode(workflow);
            document.getElementById('output').innerHTML = `--- MERMAID ---\n${mermaidCode}`;
            mermaid.initialize({ startOnLoad: false });
            const { svg } = await mermaid.render('sw-diagram', mermaidCode);
            diagramContainerEl.innerHTML = svg;
          } catch (ex) {
            console.error('Invalid workflow', ex);
          }
        };
        let debounceHandle;
        inputTextarea.addEventListener('keyup', () => {
          if (debounceHandle) {
            clearTimeout(debounceHandle);
          }
          debounceHandle = setTimeout(processWorkflow, 300);
        });
        inputTextarea.value = JSON.stringify(workflowDefinition, null, 4);
        await processWorkflow();
      })();
    </script>
  </body>
</html>