Implement status context

src/controller/api/status.c

@@ -2,6 +2,7 @@
 
 #include "json/json.h"
 #include "json/layout.h"
+#include "collections/array.h"
 
 #include "http/server/request.h"
 #include "model/status.h"
@@ -40,12 +41,49 @@ void show_status( struct http_request* req, struct status* s )
 
 	api_status_write_as_json(s,f);
 }
+
+// Route: /api/v1/statuses/%d{s->id}/context
 void show_status_context( struct http_request* req, struct status* s )
 {
 	http_request_send_headers( req, 200, "application/json", true );
 	FILE* f = http_request_get_response_body( req );
 
-	fprintf( f, "{\"ancestors\":[],\"descendants\":[]}" );
+	struct {
+		struct status** items;
+		int count;
+	} ancestors, replies;
+	status_get_context( s, &ancestors, &replies );
+	/*
+	memset( &ancestors, 0, sizeof(ancestors));
+	memset( &replies, 0, sizeof(replies));
+	struct status* test = status_from_id( 111 );
+	array_append( &ancestors, sizeof(test), &test );
+	*/
+
+	fprintf( f, "{\"ancestors\":[" );
+	for( int i = 0; i < ancestors.count; ++i ) {
+		struct status* s = ancestors.items[i];
+		api_status_write_as_json(s,f);
+		status_free(s);
+
+		if( i != ancestors.count - 1 ) {
+			fprintf( f, "," );
+		}
+	}
+	free(ancestors.items);
+
+	fprintf( f, "],\"descendants\":[" );
+	for( int i = 0; i < replies.count; ++i ) {
+		struct status* s = replies.items[i];
+		api_status_write_as_json(s,f);
+		status_free(s);
+
+		if( i != replies.count - 1 ) {
+			fprintf( f, "," );
+		}
+	}
+	free(replies.items);
+	fprintf( f, "]}" );
 }
 
 void show_statuses( struct http_request* req, struct status** ss, int count )

src/model/status.c

@@ -215,6 +215,37 @@ void status_make_reply_to( struct status* s, int in_reply_to_id )
 		status_save(in_reply_to);
 	}
 }
+void status_get_context( struct status* s, void* ancestors_ptr, void* replies_ptr )
+{
+	struct array_of_status {
+		struct status** items;
+		int count;
+	};
+
+	struct array_of_status* ancestors = ancestors_ptr;
+	struct array_of_status* replies = replies_ptr;
+
+	memset(ancestors,0,sizeof(*ancestors));
+	memset(replies,0,sizeof(*replies));
+
+	struct status* parent = NULL;
+	for( int i = s->in_reply_to; i != 0; i = parent->in_reply_to ) {
+		parent = status_from_id( i );
+		array_append( ancestors, sizeof(parent), &parent );
+	};
+	// reverse ancestors
+	for( int i = 0; i < ancestors->count / 2; ++i ) {
+		struct status* a = ancestors->items[i];
+		struct status* b = ancestors->items[ ancestors->count - i - 1 ];
+		ancestors->items[i] = b;
+		ancestors->items[ ancestors->count - i - 1 ] = a;
+	}
+
+	for( int i = 0; i < s->replies.count; ++i ) {
+		struct status* reply = status_from_id( s->replies.items[i] );
+		array_append( replies, sizeof(reply), &reply );
+	}
+}
 
 void status_add_react( struct status* s, const char* react, struct account* a )
 {

src/model/status.h

@@ -62,6 +62,7 @@ void status_save( struct status* s );
 void status_free( struct status* s );
 
 void status_make_reply_to( struct status* s, int in_reply_to );
+void status_get_context( struct status* s, void* ancestors, void* replies );
 
 void status_add_to_timeline( struct status* s, int timeline_id );