feat(cal): add booking insertion support

docs/catalog/cal.md

@@ -37,7 +37,7 @@ The Cal.com API uses JSON formatted data, please refer to [Cal.com API docs](htt
 
 | Version | Wasm Package URL                                                                                | Checksum                                                           |
 | ------- | ----------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ |
-| 0.1.0   | `https://github.com/supabase/wrappers/releases/download/wasm_cal_fdw_v0.1.0/cal_fdw.wasm` | `4b8661caae0e4f7b5a1480ea297cf5681101320712cde914104b82f2b0954003` |
+| 0.1.0   | `https://github.com/supabase/wrappers/releases/download/wasm_cal_fdw_v0.1.0/cal_fdw.wasm` | `tbd` |
 
 ## Preparation
 
@@ -121,7 +121,7 @@ The Cal.com Wrapper supports data reads from below objects in Cal.com.
 | -------------| :----: | :----: | :----: | :----: | :------: |
 | My Profile   |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |
 | Event Types  |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |
-| Bookings     |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |
+| Bookings     |   ✅   |   ✅   |   ❌   |   ❌   |    ❌    |
 | Calendars    |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |
 | Schedules    |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |
 | Conferencing |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |
@@ -153,7 +153,8 @@ create foreign table cal.bookings (
 )
   server cal_server
   options (
-    object 'bookings'
+    object 'bookings',
+    rowid_column 'attrs'
   );
 
 create foreign table cal.calendars (
@@ -188,6 +189,7 @@ create foreign table cal.conferencing (
 
     - All the supported columns are listed above, other columns are not allowd.
     - The `attrs` is a special column which stores all the object attributes in JSON format, you can extract any attributes needed from it. See more examples below.
+    - `bookings` table support data insertion, see an example below.
 
 ### Foreign table options
 
@@ -250,7 +252,8 @@ create foreign table cal.bookings (
 )
   server cal_server
   options (
-    object 'bookings'
+    object 'bookings',
+    rowid_column 'attrs'
   );
 
 create foreign table cal.event_types (
@@ -278,3 +281,24 @@ from cal.event_types t
   cross join json_array_elements((attrs->'eventTypeGroups')::json) etg
   cross join json_array_elements((etg->'eventTypes')::json) et;
 ```
+
+### Make a booking
+
+Once we know an event type ID (we can get it from above example, here we suppose it is `123456`), we can make a booking using below SQL.
+
+```
+insert into cal.bookings(attrs)
+values (
+	'{
+		"start": "2024-12-12T10:30:00.000Z",
+		"eventTypeId": 123456,
+		"attendee": {
+			"name": "Test Name",
+			"email": "[email protected]",
+			"timeZone": "America/New_York"
+		}
+	}'::jsonb
+);
+```
+
+To add more details to the booking, such as `guests` or `metadata`, refer to [Cal.com documentation](https://cal.com/docs/api-reference/v2/bookings/create-a-booking).

docs/catalog/index.md

@@ -13,7 +13,7 @@ hide:
 | Auth0       |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |    ❌     |
 | AWS Cognito |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |    ❌     |
 | BigQuery    |   ✅   |   ✅   |   ✅   |   ✅   |    ❌    |    ✅     |
-| Cal.com     |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |    ❌     |
+| Cal.com     |   ✅   |   ✅   |   ❌   |   ❌   |    ❌    |    ❌     |
 | Calendly    |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |    ❌     |
 | ClickHouse  |   ✅   |   ✅   |   ✅   |   ✅   |    ❌    |    ✅     |
 | Firebase    |   ✅   |   ❌   |   ❌   |   ❌   |    ❌    |    ❌     |

wasm-wrappers/fdw/cal_fdw/src/lib.rs

@@ -260,20 +260,50 @@ impl Guest for CalFdw {
         Ok(())
     }
 
-    fn begin_modify(_ctx: &Context) -> FdwResult {
-        Err("modify on foreign table is not supported".to_owned())
+    fn begin_modify(ctx: &Context) -> FdwResult {
+        let this = Self::this_mut();
+        let opts = ctx.get_options(OptionsType::Table);
+        let object = opts.require("object")?;
+        if object != "bookings" {
+            return Err("only insert on foreign table 'bookings' is supported".to_owned());
+        }
+        this.object = object;
+        Ok(())
     }
 
-    fn insert(_ctx: &Context, _row: &Row) -> FdwResult {
+    fn insert(_ctx: &Context, row: &Row) -> FdwResult {
+        let this = Self::this_mut();
+        if let Some(cell) = &row.cells()[0] {
+            match cell {
+                Cell::Json(body) => {
+                    let url = format!("{}/{}", this.base_url, this.object);
+                    let mut headers = this.headers.clone();
+                    headers.push(("cal-api-version".to_owned(), "2024-08-13".to_owned()));
+                    let req = http::Request {
+                        method: http::Method::Post,
+                        url,
+                        headers,
+                        body: body.to_owned(),
+                    };
+                    let resp = http::post(&req)?;
+                    http::error_for_status(&resp)
+                        .map_err(|err| format!("{}: {}", err, resp.body))?;
+                    stats::inc_stats(FDW_NAME, stats::Metric::RowsOut, 1);
+                }
+                _ => {
+                    return Err("column type other than JSON is not supported".to_owned());
+                }
+            }
+        }
         Ok(())
     }
 
     fn update(_ctx: &Context, _rowid: Cell, _row: &Row) -> FdwResult {
-        Ok(())
+        Err("update on foreign table is not supported".to_owned())
     }
 
     fn delete(_ctx: &Context, _rowid: Cell) -> FdwResult {
-        Ok(())
+        Err("delete on foreign table is not supported".to_owned())
     }
 
     fn end_modify(_ctx: &Context) -> FdwResult {