#include "mastodon_api.h"
#include "http_server/http_request.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "form.h"
#include "model/client_app.h"
#include "model/status.h"

bool handle_mastodon_api_apps( struct http_request* req )
{
	FILE* data = http_request_get_request_data( req );

	struct form_parser* fp = form_pull_parser_new( data );
	if( !fp ) { return false; }

	char* client_name = NULL;
	char* redirect_uris = NULL;

	char* key;
	while( key = form_pull_parser_read_key( fp ) ) {
		if( 0 == strcmp( "client_name", key ) ) {
			client_name = strdup( form_pull_parser_read_value(fp) );
		} else if( 0 == strcmp( "redirect_uris", key ) ) {
			redirect_uris = strdup( form_pull_parser_read_value(fp) );
		} else {
			printf( "key: %s\n", key );
			printf( "value: %s\n", form_pull_parser_read_value(fp) );
		}
	}

	form_pull_parser_release(fp);

	struct client_app* app = client_app_new( client_name );

	http_request_send_headers( req, 200, "application/json", true );
	FILE* f = http_request_get_response_body( req );

	#define RENDER
		#include "controller/mastodon_api/apps.json.inc"
	#undef RENDER

	free(client_name);
	free(redirect_uris);

	return true;
}

bool check_bearer_token( struct http_request* req )
{
	// Check bearer token
	const char* auth_token = http_request_get_header( req, "Authorization" );
	if( !auth_token ) { return false; }
	if( 0 != strncmp( auth_token, "Bearer ", 7 ) ) { return false; }

	char* client_id = strndup( &auth_token[7], 32 );
	struct client_app* app = client_app_from_id( client_id );
	free(client_id);
	if( !app ) { return false; }
	if( 0 != strcmp( &auth_token[7], app->access_token ) ) { return false; }
	client_app_free(app);

	return true;
}

bool handle_timeline( struct http_request* req, const char* which )
{
	// "GET /api/v1/timelines/home?with_muted=true&limit=31"
	bool with_muted = false;
	unsigned int limit = 100;

	http_request_send_headers( req, 200, "application/json", true );
	FILE* f = http_request_get_response_body( req );

	struct status s = {
		.id = 1,
	};

	fprintf( f, "[" );
		status_write_as_json(&s,f);
	fprintf( f, "]" );

	return true;
}

bool route_mastodon_api( struct http_request* req )
{
	if( http_request_route( req, "apps" ) ) {
		if( http_request_route_method( req, "POST" ) ) {
			return handle_mastodon_api_apps(req);
		}
	}

	if( !check_bearer_token(req) ) { return false; }
	printf( "authorization still valid\n" );

	if( http_request_route( req, "timelines/home" ) ) {
		return handle_timeline( req, "home" );
	} else if( http_request_route( req, "accounts/verify_credentials" ) ) {
		return true;
	}

	return false;
}