add import script for existing game logs

build/server/main.js

@@ -1730,6 +1730,9 @@ var GameSockets = {
 };
 
 const log$1 = logger('Db.ts');
+// assume 32766 SQLITE_MAX_VARIABLE_NUMBER
+// @see https://sqlite.org/limits.html
+const SQLITE_MAX_VARIABLE_NUMBER = 32766;
 class Db {
     constructor(file, patchesDir) {
         this.file = file;
@@ -1855,6 +1858,9 @@ class Db {
         }
         return this.get(table, check)[idcol]; // get id manually
     }
+    /**
+     * Inserts data into table and returns the last insert id
+     */
     insert(table, data) {
         const keys = Object.keys(data);
         const values = keys.map(k => data[k]);
@@ -1863,6 +1869,41 @@ class Db {
             + ' VALUES (' + keys.map(k => '?').join(',') + ')';
         return this.run(sql, values).lastInsertRowid;
     }
+    /**
+     * Inserts multiple datas into table. Returns the total number
+     * of changes.
+     */
+    insertMany(table, datas) {
+        if (datas.length === 0) {
+            return 0;
+        }
+        const keys = Object.keys(datas[0]);
+        const runChunk = (vars, values) => {
+            const sql = `INSERT INTO ${table}
+        (${keys.join(',')})
+        VALUES ${vars.join(',')}`;
+            return this.run(sql, values).changes;
+        };
+        let len = 0;
+        let vars = [];
+        let values = [];
+        let changes = 0;
+        for (const data of datas) {
+            if (len + keys.length > SQLITE_MAX_VARIABLE_NUMBER) {
+                changes += runChunk(vars, values);
+                len = 0;
+                vars = [];
+                values = [];
+            }
+            len += keys.length;
+            vars.push('(' + keys.map(_ => '?').join(',') + ')');
+            values.push(...keys.map(k => data[k]));
+        }
+        if (len > 0) {
+            changes += runChunk(vars, values);
+        }
+        return changes;
+    }
     update(table, data, whereRaw = {}) {
         const keys = Object.keys(data);
         if (keys.length === 0) {