From 26b72bcc59ece9858ef6151dab6545f04803c96b Mon Sep 17 00:00:00 2001
From: "Visal .In" <invisal@gmail.com>
Date: Wed, 16 Oct 2024 20:46:37 +0700
Subject: [PATCH] add mongodb and cloudflare headers

---
 src/connections/mongodb.ts           |  4 +--
 src/connections/sqlite/cloudflare.ts | 40 +++++++++++++++-------------
 src/utils/transformer.ts             | 35 ++++++++++++++++++++++++
 3 files changed, 59 insertions(+), 20 deletions(-)

diff --git a/src/connections/mongodb.ts b/src/connections/mongodb.ts
index afd0bf4..b9986fa 100644
--- a/src/connections/mongodb.ts
+++ b/src/connections/mongodb.ts
@@ -11,6 +11,7 @@ import {
 
 import { MongoClient, Db, Document, Collection, ObjectId } from 'mongodb';
 import { PostgresDialect } from 'src/query-builder/dialects/postgres';
+import { transformObjectBasedResult } from 'src/utils/transformer';
 // import { MongoDialect } from '../query-builder/dialects/mongo'
 
 function isValidObjectId(value: string) {
@@ -211,8 +212,7 @@ export class MongoDBConnection implements Connection {
         }
 
         const data = await query.toArray();
-
-        return { error: null, data, query: '' };
+        return transformObjectBasedResult(data);
     }
 
     async createTable(): Promise<QueryResult> {
diff --git a/src/connections/sqlite/cloudflare.ts b/src/connections/sqlite/cloudflare.ts
index a74a373..bd672f8 100644
--- a/src/connections/sqlite/cloudflare.ts
+++ b/src/connections/sqlite/cloudflare.ts
@@ -11,29 +11,29 @@ import {
     TableIndex,
     TableIndexType,
 } from 'src/models/database';
+import { transformArrayBasedResult } from 'src/utils/transformer';
+
+interface CloudflareResult {
+    results: {
+        columns: string[];
+        rows: unknown[][];
+    };
 
-interface SuccessResponse {
-    result: Record<string, any>[]; // Array of objects representing results
-    success: true;
     meta: {
-        served_by: string;
         duration: number;
         changes: number;
         last_row_id: number;
-        changed_db: boolean;
-        size_after: number;
         rows_read: number;
         rows_written: number;
     };
 }
-interface ErrorResponse {
-    result: []; // Empty result on error
-    success: false;
-    errors: { code: number; message: string }[]; // Array of errors
-    messages: any[]; // You can adjust this type based on your use case
-}
 
-type APIResponse = SuccessResponse | ErrorResponse;
+interface CloudflareResponse {
+    success?: boolean;
+    result: CloudflareResult[];
+    error?: string;
+    errors?: string[];
+}
 
 export type CloudflareD1ConnectionDetails = {
     apiKey: string;
@@ -117,7 +117,7 @@ export class CloudflareD1Connection extends SqliteBaseConnection {
         if (!query) throw new Error('A SQL query was not provided');
 
         const response = await fetch(
-            `https://api.cloudflare.com/client/v4/accounts/${this.accountId}/d1/database/${this.databaseId}/query`,
+            `https://api.cloudflare.com/client/v4/accounts/${this.accountId}/d1/database/${this.databaseId}/query/raw`,
             {
                 method: 'POST',
                 headers: {
@@ -131,27 +131,31 @@ export class CloudflareD1Connection extends SqliteBaseConnection {
             }
         );
 
-        const json: APIResponse = await response.json();
+        const json: CloudflareResponse = await response.json();
 
         if (json.success) {
             const items = json.result[0].results;
             const rawSQL = constructRawQuery(query);
 
             return {
-                data: items,
+                data: transformArrayBasedResult(
+                    items.columns,
+                    (column) => ({ name: column }),
+                    items.rows
+                ),
                 error: null,
                 query: rawSQL,
                 // There's additional metadata here we could pass in the future
                 // meta: json.meta,
             };
+        } else {
         }
 
-        const error = json.errors.map((error) => error.message).join(', ');
         const rawSQL = constructRawQuery(query);
 
         return {
             data: [],
-            error: new Error(error),
+            error: new Error(json.error ?? json.errors?.join(', ')),
             query: rawSQL,
         };
     }
diff --git a/src/utils/transformer.ts b/src/utils/transformer.ts
index 28a6792..467605b 100644
--- a/src/utils/transformer.ts
+++ b/src/utils/transformer.ts
@@ -1,5 +1,40 @@
+/**
+ * Provides several functions to help transform common
+ * database result format into our own query result formation
+ */
+
 import { QueryResult, QueryResultHeader } from 'src/connections';
 
+export function transformObjectBasedResult(
+    arr: Record<string, unknown>[]
+): QueryResult {
+    const usedColumnName = new Set();
+    const columns: QueryResultHeader[] = [];
+
+    // Build the headers based on rows
+    arr.forEach((row) => {
+        Object.keys(row).forEach((key) => {
+            if (!usedColumnName.has(key)) {
+                usedColumnName.add(key);
+                columns.push({
+                    name: key,
+                    displayName: key,
+                });
+            }
+        });
+    });
+
+    return {
+        data: arr,
+        headers: columns,
+        error: null,
+        query: '',
+    };
+}
+
+/**
+ * Transforms the array based result into our own query result format
+ */
 export function transformArrayBasedResult<HeaderType>(
     headers: HeaderType[],
     headersMapper: (header: HeaderType) => {