1 files changed, 106 insertions, 0 deletions
diff --git a/generate_json.js b/generate_json.js
new file mode 100644
index 0000000..be51cf0
--- /dev/null
+++ b/generate_json.js
@@ -0,0 +1,106 @@
+const sqlite3 = require('sqlite3').verbose();
+const dbFile = process.argv[2];
+const db = new sqlite3.Database(dbFile);
+const fs = require('fs');
+
+/**
+ * Parses the string of properties and returns an object containing the key-value pairs.
+ * If the key is 'FILE', the corresponding value is processed to extract the filename.
+ * @param {string} s - The string of properties.
+ * @returns {Object} - The object containing the parsed properties.
+ */
+function parseProperties(s) {
+  const properties = {};
+  s.match(/\"(.*?)\" \. \"(.*?)\"/g).forEach(match => {
+    const [key, value] = match.match(/\"(.*?)\"/g).map(v => v.replace(/"/g, ''));
+    properties[key] = key === 'FILE' ? getFilename(value) : value;
+  });
+  return removeQuotesFromObject(properties);
+}
+
+/**
+ * Removes the double quotes from the object.
+ * @param {Object} obj - The object to be processed.
+ * @returns {Object} - The object without double quotes.
+ */ 
+function removeQuotesFromObject(obj) {
+  for (let key in obj) {
+    if (typeof obj[key] === 'string') {
+      obj[key] = obj[key].replace(/^"|"$/g, '');
+    } else if (typeof obj[key] === 'object') {
+      obj[key] = removeQuotesFromObject(obj[key]);
+    }
+  }
+  return obj;
+}
+
+/**
+ * Extracts the filename from the path.
+ * @param {string} path - The path to be processed.
+ * @returns {string} - The filename.
+ */
+function getFilename(path) {
+  return path.split('/').pop();
+}
+
+const queryNodes = `
+SELECT
+  tags.tag as tags,
+  nodes.properties,
+  nodes.olp,
+  nodes.pos,
+  nodes.level,
+  nodes.title,
+  nodes.file,
+  nodes.id
+FROM
+  nodes
+LEFT JOIN
+  tags
+ON
+  nodes.id = tags.node_id
+GROUP BY
+  nodes.id
+`;
+
+const queryLinks = `
+SELECT
+  type, dest as target, source
+FROM
+  links
+WHERE
+  type = '"id"'
+`;
+
+const queryTags = `
+SELECT
+  *
+FROM
+  tags
+`;
+
+const graphdata = {
+  type: "graphdata",
+  data: {},
+};
+db.all(queryNodes, (_, nodes) => 
+  db.all(queryLinks, (_, links) => 
+    db.all(queryTags, (_, tags) => {
+      graphdata.data.nodes = nodes.map(node => ({
+        ...node,
+        tags: node.tags ?? [null],
+        file: getFilename(node.file),
+        properties: parseProperties(node.properties),
+      }));
+      graphdata.data.links = links;
+      graphdata.data.tags = tags.length ? tags : null;
+
+      fs.writeFile('graphdata.json', JSON.stringify(removeQuotesFromObject(graphdata)), (err) => {
+        if (err) throw err;
+        console.log('The file has been saved!');
+      });
+    }),
+  ),
+);
+
+db.close();