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

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

        first_name: data.first_name || null,
        last_name: data.last_name || null,
        birth_number: data.birth_number || null,
        insurance_number: data.insurance_number || null,
        zp_code: data.zp_code || null,
        child_mobile: data.child_mobile || null,
        insurance_expiry: data.insurance_expiry || null,
        allergies: data.allergies || null,
        internal_notes: data.internal_notes || null,
        birth_date: data.birth_date || null,
        importHash: data.importHash || null,
        createdById: currentUser.id,
        updatedById: currentUser.id,
      },
      { transaction },
    );

    await children.setGuardian(data.guardian || null, {
      transaction,
    });

    return children;
  }

  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 childrenData = data.map((item, index) => ({
      id: item.id || undefined,

      first_name: item.first_name || null,
      last_name: item.last_name || null,
      birth_number: item.birth_number || null,
      insurance_number: item.insurance_number || null,
      zp_code: item.zp_code || null,
      child_mobile: item.child_mobile || null,
      insurance_expiry: item.insurance_expiry || null,
      allergies: item.allergies || null,
      internal_notes: item.internal_notes || null,
      birth_date: item.birth_date || null,
      importHash: item.importHash || null,
      createdById: currentUser.id,
      updatedById: currentUser.id,
      createdAt: new Date(Date.now() + index * 1000),
    }));

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

    // For each item created, replace relation files

    return children;
  }

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

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

    const updatePayload = {};

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

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

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

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

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

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

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

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

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

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

    updatePayload.updatedById = currentUser.id;

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

    if (data.guardian !== undefined) {
      await children.setGuardian(
        data.guardian,

        { transaction },
      );
    }

    return children;
  }

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

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

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

    return children;
  }

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

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

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

    await children.destroy({
      transaction,
    });

    return children;
  }

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

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

    if (!children) {
      return children;
    }

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

    output.presence_child = await children.getPresence_child({
      transaction,
    });

    output.rfid_cards_child = await children.getRfid_cards_child({
      transaction,
    });

    output.guardian = await children.getGuardian({
      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.guardians,
        as: 'guardian',

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

      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.children.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('children', 'first_name', query),
        ],
      };
    }

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

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