const db = require('../models');
const FileDBApi = require('./file');
const crypto = require('crypto');
const Utils = require('../utils');

const Sequelize = db.Sequelize;
const Op = Sequelize.Op;

module.exports = class ReservationsDBApi {
  static async create(data, options) {
    const currentUser = (options && options.currentUser) || { id: null };
    const transaction = (options && options.transaction) || undefined;

    const reservations = await db.reservations.create(
      {
        id: data.id || undefined,

        start_date: data.start_date || null,
        end_date: data.end_date || null,
        status: data.status || null,
        source: data.source || null,
        currency: data.currency || null,
        total_amount: data.total_amount || null,
        importHash: data.importHash || null,
        createdById: currentUser.id,
        updatedById: currentUser.id,
      },
      { transaction },
    );

    await reservations.setGuest(data.guest || null, {
      transaction,
    });

    await reservations.setContract(data.contract || null, {
      transaction,
    });

    await reservations.setPayment(data.payment || null, {
      transaction,
    });

    return reservations;
  }

  static async bulkImport(data, options) {
    const currentUser = (options && options.currentUser) || { id: null };
    const transaction = (options && options.transaction) || undefined;

    // Prepare data - wrapping individual data transformations in a map() method
    const reservationsData = data.map((item, index) => ({
      id: item.id || undefined,

      start_date: item.start_date || null,
      end_date: item.end_date || null,
      status: item.status || null,
      source: item.source || null,
      currency: item.currency || null,
      total_amount: item.total_amount || null,
      importHash: item.importHash || null,
      createdById: currentUser.id,
      updatedById: currentUser.id,
      createdAt: new Date(Date.now() + index * 1000),
    }));

    // Bulk create items
    const reservations = await db.reservations.bulkCreate(reservationsData, {
      transaction,
    });

    // For each item created, replace relation files

    return reservations;
  }

  static async update(id, data, options) {
    const currentUser = (options && options.currentUser) || { id: null };
    const transaction = (options && options.transaction) || undefined;

    const reservations = await db.reservations.findByPk(
      id,
      {},
      { transaction },
    );

    const updatePayload = {};

    if (data.start_date !== undefined)
      updatePayload.start_date = data.start_date;

    if (data.end_date !== undefined) updatePayload.end_date = data.end_date;

    if (data.status !== undefined) updatePayload.status = data.status;

    if (data.source !== undefined) updatePayload.source = data.source;

    if (data.currency !== undefined) updatePayload.currency = data.currency;

    if (data.total_amount !== undefined)
      updatePayload.total_amount = data.total_amount;

    updatePayload.updatedById = currentUser.id;

    await reservations.update(updatePayload, { transaction });

    if (data.guest !== undefined) {
      await reservations.setGuest(
        data.guest,

        { transaction },
      );
    }

    if (data.contract !== undefined) {
      await reservations.setContract(
        data.contract,

        { transaction },
      );
    }

    if (data.payment !== undefined) {
      await reservations.setPayment(
        data.payment,

        { transaction },
      );
    }

    return reservations;
  }

  static async deleteByIds(ids, options) {
    const currentUser = (options && options.currentUser) || { id: null };
    const transaction = (options && options.transaction) || undefined;

    const reservations = await db.reservations.findAll({
      where: {
        id: {
          [Op.in]: ids,
        },
      },
      transaction,
    });

    await db.sequelize.transaction(async (transaction) => {
      for (const record of reservations) {
        await record.update({ deletedBy: currentUser.id }, { transaction });
      }
      for (const record of reservations) {
        await record.destroy({ transaction });
      }
    });

    return reservations;
  }

  static async remove(id, options) {
    const currentUser = (options && options.currentUser) || { id: null };
    const transaction = (options && options.transaction) || undefined;

    const reservations = await db.reservations.findByPk(id, options);

    await reservations.update(
      {
        deletedBy: currentUser.id,
      },
      {
        transaction,
      },
    );

    await reservations.destroy({
      transaction,
    });

    return reservations;
  }

  static async findBy(where, options) {
    const transaction = (options && options.transaction) || undefined;

    const reservations = await db.reservations.findOne(
      { where },
      { transaction },
    );

    if (!reservations) {
      return reservations;
    }

    const output = reservations.get({ plain: true });

    output.contracts_reservation = await reservations.getContracts_reservation({
      transaction,
    });

    output.payments_reservation = await reservations.getPayments_reservation({
      transaction,
    });

    output.guest = await reservations.getGuest({
      transaction,
    });

    output.contract = await reservations.getContract({
      transaction,
    });

    output.payment = await reservations.getPayment({
      transaction,
    });

    return output;
  }

  static async findAll(filter, options) {
    const limit = filter.limit || 0;
    let offset = 0;
    let where = {};
    const currentPage = +filter.page;

    offset = currentPage * limit;

    const orderBy = null;

    const transaction = (options && options.transaction) || undefined;

    let include = [
      {
        model: db.users,
        as: 'guest',

        where: filter.guest
          ? {
              [Op.or]: [
                {
                  id: {
                    [Op.in]: filter.guest
                      .split('|')
                      .map((term) => Utils.uuid(term)),
                  },
                },
                {
                  firstName: {
                    [Op.or]: filter.guest
                      .split('|')
                      .map((term) => ({ [Op.iLike]: `%${term}%` })),
                  },
                },
              ],
            }
          : {},
      },

      {
        model: db.contracts,
        as: 'contract',

        where: filter.contract
          ? {
              [Op.or]: [
                {
                  id: {
                    [Op.in]: filter.contract
                      .split('|')
                      .map((term) => Utils.uuid(term)),
                  },
                },
                {
                  status: {
                    [Op.or]: filter.contract
                      .split('|')
                      .map((term) => ({ [Op.iLike]: `%${term}%` })),
                  },
                },
              ],
            }
          : {},
      },

      {
        model: db.payments,
        as: 'payment',

        where: filter.payment
          ? {
              [Op.or]: [
                {
                  id: {
                    [Op.in]: filter.payment
                      .split('|')
                      .map((term) => Utils.uuid(term)),
                  },
                },
                {
                  method: {
                    [Op.or]: filter.payment
                      .split('|')
                      .map((term) => ({ [Op.iLike]: `%${term}%` })),
                  },
                },
              ],
            }
          : {},
      },
    ];

    if (filter) {
      if (filter.id) {
        where = {
          ...where,
          ['id']: Utils.uuid(filter.id),
        };
      }

      if (filter.source) {
        where = {
          ...where,
          [Op.and]: Utils.ilike('reservations', 'source', filter.source),
        };
      }

      if (filter.currency) {
        where = {
          ...where,
          [Op.and]: Utils.ilike('reservations', 'currency', filter.currency),
        };
      }

      if (filter.calendarStart && filter.calendarEnd) {
        where = {
          ...where,
          [Op.or]: [
            {
              start_date: {
                [Op.between]: [filter.calendarStart, filter.calendarEnd],
              },
            },
            {
              end_date: {
                [Op.between]: [filter.calendarStart, filter.calendarEnd],
              },
            },
          ],
        };
      }

      if (filter.start_dateRange) {
        const [start, end] = filter.start_dateRange;

        if (start !== undefined && start !== null && start !== '') {
          where = {
            ...where,
            start_date: {
              ...where.start_date,
              [Op.gte]: start,
            },
          };
        }

        if (end !== undefined && end !== null && end !== '') {
          where = {
            ...where,
            start_date: {
              ...where.start_date,
              [Op.lte]: end,
            },
          };
        }
      }

      if (filter.end_dateRange) {
        const [start, end] = filter.end_dateRange;

        if (start !== undefined && start !== null && start !== '') {
          where = {
            ...where,
            end_date: {
              ...where.end_date,
              [Op.gte]: start,
            },
          };
        }

        if (end !== undefined && end !== null && end !== '') {
          where = {
            ...where,
            end_date: {
              ...where.end_date,
              [Op.lte]: end,
            },
          };
        }
      }

      if (filter.total_amountRange) {
        const [start, end] = filter.total_amountRange;

        if (start !== undefined && start !== null && start !== '') {
          where = {
            ...where,
            total_amount: {
              ...where.total_amount,
              [Op.gte]: start,
            },
          };
        }

        if (end !== undefined && end !== null && end !== '') {
          where = {
            ...where,
            total_amount: {
              ...where.total_amount,
              [Op.lte]: end,
            },
          };
        }
      }

      if (filter.active !== undefined) {
        where = {
          ...where,
          active: filter.active === true || filter.active === 'true',
        };
      }

      if (filter.status) {
        where = {
          ...where,
          status: filter.status,
        };
      }

      if (filter.createdAtRange) {
        const [start, end] = filter.createdAtRange;

        if (start !== undefined && start !== null && start !== '') {
          where = {
            ...where,
            ['createdAt']: {
              ...where.createdAt,
              [Op.gte]: start,
            },
          };
        }

        if (end !== undefined && end !== null && end !== '') {
          where = {
            ...where,
            ['createdAt']: {
              ...where.createdAt,
              [Op.lte]: end,
            },
          };
        }
      }
    }

    const queryOptions = {
      where,
      include,
      distinct: true,
      order:
        filter.field && filter.sort
          ? [[filter.field, filter.sort]]
          : [['createdAt', 'desc']],
      transaction: options?.transaction,
      logging: console.log,
    };

    if (!options?.countOnly) {
      queryOptions.limit = limit ? Number(limit) : undefined;
      queryOptions.offset = offset ? Number(offset) : undefined;
    }

    try {
      const { rows, count } = await db.reservations.findAndCountAll(
        queryOptions,
      );

      return {
        rows: options?.countOnly ? [] : rows,
        count: count,
      };
    } catch (error) {
      console.error('Error executing query:', error);
      throw error;
    }
  }

  static async findAllAutocomplete(query, limit, offset) {
    let where = {};

    if (query) {
      where = {
        [Op.or]: [
          { ['id']: Utils.uuid(query) },
          Utils.ilike('reservations', 'status', query),
        ],
      };
    }

    const records = await db.reservations.findAll({
      attributes: ['id', 'status'],
      where,
      limit: limit ? Number(limit) : undefined,
      offset: offset ? Number(offset) : undefined,
      orderBy: [['status', 'ASC']],
    });

    return records.map((record) => ({
      id: record.id,
      label: record.status,
    }));
  }
};