#set($inputRoot = $input.path('$'))
#set($context.responseOverride.status = $inputRoot.statusCode)
$input.json('$')

#set($inputRoot = $input.path('$'))
#set($context.responseOverride.status = $inputRoot.statusCode)
$input.json('$')

export const handler = async (event) => {
    try {
        console.log("Event: ", JSON.stringify(event, null, 2));

        // Extract variables from the event object
        const httpMethod = event.httpMethod;
        const cognitoEmail = event.cognitoEmail;
        const cognitoGroups = event.cognitoGroups;
        const body = event.body;

        // Initialize response structure
        const response = {
            "statusCode": 200,
            "data": ""
        };

        // Handle GET method
        if (httpMethod === "GET") {
            // Check if necessary variables are available
            if (!cognitoEmail) {
                response.statusCode = 400;
                response.data = {
                    error: "Missing required cognitoEmail."
                };
                return response;
            }

            // Mock data processing for GET
            const data = {
                message: `Will send the user-email (${cognitoEmail}) to volunteer microservice and get the user skills data`,
                groups: `You belong to groups: ${cognitoGroups}`
            };

            // Return success response
            response.data = data;
            return response;
        }
        // Handle POST method
        else if (httpMethod === "POST") {
            if (!body || !cognitoEmail) {
                response.statusCode = 400;
                response.data = {
                    error: "Missing request body or cognitoEmail."
                };
                return response;
            }

            if (!body.hasOwnProperty("notify")) {
                response.statusCode = 400;
                response.data = {
                    error: "Missing the notify field"
                };
                return response;
            }

            // Mock data processing for POST
            const result = {
                requestBody: body,
                message: `Will send the user-email (${cognitoEmail}) and above requestBody to volunteer microservice to update the user skills data`,
                groups: `You belong to groups: ${cognitoGroups}`
            };

            // Return success response
            response.data = result;
            return response;
        }
        // Handle unsupported methods
        else {
            response.statusCode = 405;
            response.data = {
                error: `Method ${httpMethod} not allowed.`
            };
            return response;
        }
    }
    // General error handling
    catch (error) {
        console.error("Error processing request: ", error);
        return {
            "statusCode": 500,
            "data": {
                error: "Internal server error."
            }
        };
    }
};