First Commit. Based off bun-sqlite

dist/lib/grab-duplicate-safe-insert-sql.js

@@ -0,0 +1,24 @@
+import init from "../functions/init";
+export default async function ({ sql: passed_sql, table, data }) {
+    let sql = passed_sql;
+    const { dbSchema } = await init();
+    const table_schema = dbSchema.tables.find((t) => t.tableName == table);
+    const now = Date.now();
+    if (table_schema?.tableName) {
+        const set_sql_arr = Object.keys(Array.isArray(data) ? data[0] : data).map((field) => `${field} = excluded.${field}`);
+        set_sql_arr.push(`updated_at = ${now}`);
+        const set_sql = set_sql_arr.join(", ");
+        const unique_fields = table_schema.fields.filter((f) => f.unique);
+        for (let i = 0; i < unique_fields.length; i++) {
+            const field = unique_fields[i];
+            sql += ` ON CONFLICT(${field?.fieldName}) DO UPDATE SET ${set_sql}`;
+        }
+        if (table_schema.uniqueConstraints?.[0]) {
+            for (let i = 0; i < table_schema.uniqueConstraints.length; i++) {
+                const constraint = table_schema.uniqueConstraints[i];
+                sql += ` ON CONFLICT(${constraint?.constraintTableFields?.map((c) => c.value)?.join(", ")}) DO UPDATE SET ${set_sql}`;
+            }
+        }
+    }
+    return sql;
+}