import Joi from 'joi';
import swaggerFixArrayObject from '../../helper/common.js';

export const formatTime = (time) => {
  const date = new Date(`1970-01-01T${time}:00Z`);
  return date.toISOString().split('T')[1].slice(0, 8); // Returns "HH:mm:ss"
};

// Validate the event ID parameter
export const validateEventId = async (req, res, next) => {
  const schema = Joi.object({
    id: Joi.string().required().description('The ID of the event to edit'),
  });

  req.params = await schema.validateAsync(req.params, {
    abortEarly: false,
  });

  next();
};

// Validate the event ID parameter
export const validateEventQuery = async (req, res, next) => {
  const schema = Joi.object({
    type: Joi.string().required().description('Type'),
  });

  req.query = await schema.validateAsync(req.query, {
    abortEarly: false,
  });

  next();
};

// Validator for creating an event
export const createEventValidator = async (req, res, next) => {
  // req.body.start_time = formatTime(req.body.start_time);
  // req.body.end_time = formatTime(req.body.end_time);

  const schema = Joi.object({
    event_title: Joi.string().required(),
    event_description: Joi.string().allow(''),
    // event_name: Joi.string().optional(),
    date: Joi.date().iso().required(),
    start_time: Joi.string()
      // .regex(/^([0-1]?[0-9]|2[0-3]):([0-5][0-9])$/) // HH:mm format
      .required(),
    end_time: Joi.string()
      // .regex(/^([0-1]?[0-9]|2[0-3]):([0-5][0-9])$/) // HH:mm format
      .required(),
    category: Joi.string().required(),
    subCategory: Joi.string().allow(''),
  }).options({ stripUnknown: true });

  req.body = await schema.validateAsync(req.body, {
    abortEarly: false,
  });
  next();
};

// Validator for editing an event
export const editEventValidator = async (req, res, next) => {
  // req.body.start_time = formatTime(req.body.start_time);
  // req.body.end_time = formatTime(req.body.end_time);
  if (req.body.conflict !== undefined) {
    req.body.conflict = req.body.conflict === 'false';
  }

  if (
    req.body.overlapping_events !== '' &&
    req.body.overlapping_events !== undefined &&
    req.body.overlapping_events !== null
  ) {
    const parsedData = JSON.parse(req.body.overlapping_events);

    req.body.overlapping_events = swaggerFixArrayObject(parsedData);
  } else {
    req.body.overlapping_events = [];
  }

  const schema = Joi.object({
    event_title: Joi.string().optional(),
    event_description: Joi.string().allow('').optional(),
    // event_name: Joi.string().optional(),
    date: Joi.date().iso().optional(),
    start_time: Joi.string()
      // .regex(/^([0-1]?[0-9]|2[0-3]):([0-5][0-9])$/) // HH:mm format
      .optional(),
    end_time: Joi.string()
      // .regex(/^([0-1]?[0-9]|2[0-3]):([0-5][0-9])$/) // HH:mm format
      .optional(),
    category: Joi.string().optional(),
    subCategory: Joi.string().allow('').optional(),
    conflict: Joi.bool().optional(),
    overlapping_events: Joi.array().optional(),
  }).options({ stripUnknown: true });

  req.body = await schema.validateAsync(req.body, {
    abortEarly: false,
  });
  next();
};