CustomFields = new Mongo.Collection('customFields');

/**
 * A custom field on a card in the board
 */
CustomFields.attachSchema(
  new SimpleSchema({
    boardIds: {
      /**
       * the ID of the board
       */
      type: [String],
    },
    name: {
      /**
       * name of the custom field
       */
      type: String,
    },
    type: {
      /**
       * type of the custom field
       */
      type: String,
      allowedValues: [
        'text',
        'number',
        'date',
        'dropdown',
        'checkbox',
        'currency',
        'stringtemplate',
      ],
    },
    settings: {
      /**
       * settings of the custom field
       */
      type: Object,
    },
    'settings.currencyCode': {
      type: String,
      optional: true,
    },
    'settings.dropdownItems': {
      /**
       * list of drop down items objects
       */
      type: [Object],
      optional: true,
    },
    'settings.dropdownItems.$': {
      type: new SimpleSchema({
        _id: {
          /**
           * ID of the drop down item
           */
          type: String,
        },
        name: {
          /**
           * name of the drop down item
           */
          type: String,
        },
      }),
    },
    'settings.stringtemplateFormat': {
      type: String,
      optional: true,
    },
    'settings.stringtemplateSeparator': {
      type: String,
      optional: true,
    },
    showOnCard: {
      /**
       * should we show on the cards this custom field
       */
      type: Boolean,
      defaultValue: false,
    },
    automaticallyOnCard: {
      /**
       * should the custom fields automatically be added on cards?
       */
      type: Boolean,
      defaultValue: false,
    },
    alwaysOnCard: {
      /**
       * should the custom field be automatically added to all cards?
       */
      type: Boolean,
      defaultValue: false,
    },
    showLabelOnMiniCard: {
      /**
       * should the label of the custom field be shown on minicards?
       */
      type: Boolean,
      defaultValue: false,
    },
    showSumAtTopOfList: {
      /**
       * should the sum of the custom fields be shown at top of list?
       */
      type: Boolean,
      defaultValue: false,
    },
    createdAt: {
      type: Date,
      optional: true,
      // eslint-disable-next-line consistent-return
      autoValue() {
        if (this.isInsert) {
          return new Date();
        } else if (this.isUpsert) {
          return { $setOnInsert: new Date() };
        } else {
          this.unset();
        }
      },
    },
    modifiedAt: {
      type: Date,
      denyUpdate: false,
      // eslint-disable-next-line consistent-return
      autoValue() {
        if (this.isInsert || this.isUpsert || this.isUpdate) {
          return new Date();
        } else {
          this.unset();
        }
      },
    },
  }),
);

CustomFields.addToAllCards = cf => {
  Cards.update(
    {
      boardId: { $in: cf.boardIds },
      customFields: { $not: { $elemMatch: { _id: cf._id } } },
    },
    {
      $push: { customFields: { _id: cf._id, value: null } },
    },
    { multi: true },
  );
};

CustomFields.mutations({
  addBoard(boardId) {
    if (boardId) {
      return {
        $push: {
          boardIds: boardId,
        },
      };
    } else {
      return null;
    }
  },
});

CustomFields.allow({
  insert(userId, doc) {
    return allowIsAnyBoardMember(
      userId,
      Boards.find({
        _id: { $in: doc.boardIds },
      }).fetch(),
    );
  },
  update(userId, doc) {
    return allowIsAnyBoardMember(
      userId,
      Boards.find({
        _id: { $in: doc.boardIds },
      }).fetch(),
    );
  },
  remove(userId, doc) {
    return allowIsAnyBoardMember(
      userId,
      Boards.find({
        _id: { $in: doc.boardIds },
      }).fetch(),
    );
  },
  fetch: ['userId', 'boardIds'],
});

// not sure if we need this?
//CustomFields.hookOptions.after.update = { fetchPrevious: false };

function customFieldCreation(userId, doc) {
  Activities.insert({
    userId,
    activityType: 'createCustomField',
    boardId: doc.boardIds[0], // We are creating a customField, it has only one boardId
    customFieldId: doc._id,
  });
}

function customFieldDeletion(userId, doc) {
  Activities.insert({
    userId,
    activityType: 'deleteCustomField',
    boardId: doc.boardIds[0], // We are creating a customField, it has only one boardId
    customFieldId: doc._id,
  });
}

// This has some bug, it does not show edited customField value at Outgoing Webhook,
// instead it shows undefined, and no listId and swimlaneId.
function customFieldEdit(userId, doc) {
  const card = Cards.findOne(doc.cardId);
  const customFieldValue = Activities.findOne({ customFieldId: doc._id }).value;
  Activities.insert({
    userId,
    activityType: 'setCustomField',
    boardId: doc.boardIds[0], // We are creating a customField, it has only one boardId
    customFieldId: doc._id,
    customFieldValue,
    listId: doc.listId,
    swimlaneId: doc.swimlaneId,
  });
}

if (Meteor.isServer) {
  Meteor.startup(() => {
    CustomFields._collection._ensureIndex({ modifiedAt: -1 });
    CustomFields._collection._ensureIndex({ boardIds: 1 });
  });

  CustomFields.after.insert((userId, doc) => {
    customFieldCreation(userId, doc);

    if (doc.alwaysOnCard) {
      CustomFields.addToAllCards(doc);
    }
  });

  CustomFields.before.update((userId, doc, fieldNames, modifier) => {
    if (_.contains(fieldNames, 'boardIds') && modifier.$pull) {
      Cards.update(
        { boardId: modifier.$pull.boardIds, 'customFields._id': doc._id },
        { $pull: { customFields: { _id: doc._id } } },
        { multi: true },
      );
      customFieldEdit(userId, doc);
      Activities.remove({
        customFieldId: doc._id,
        boardId: modifier.$pull.boardIds,
        listId: doc.listId,
        swimlaneId: doc.swimlaneId,
      });
    } else if (_.contains(fieldNames, 'boardIds') && modifier.$push) {
      Activities.insert({
        userId,
        activityType: 'createCustomField',
        boardId: modifier.$push.boardIds,
        customFieldId: doc._id,
      });
    }
  });

  CustomFields.after.update((userId, doc) => {
    if (doc.alwaysOnCard) {
      CustomFields.addToAllCards(doc);
    }
  });
  CustomFields.before.remove((userId, doc) => {
    customFieldDeletion(userId, doc);
    Activities.remove({
      customFieldId: doc._id,
    });

    Cards.update(
      { boardId: { $in: doc.boardIds }, 'customFields._id': doc._id },
      { $pull: { customFields: { _id: doc._id } } },
      { multi: true },
    );
  });
}

//CUSTOM FIELD REST API
if (Meteor.isServer) {
  /**
   * @operation get_all_custom_fields
   * @summary Get the list of Custom Fields attached to a board
   *
   * @param {string} boardID the ID of the board
   * @return_type [{_id: string,
   *                name: string,
   *                type: string}]
   */
  JsonRoutes.add('GET', '/api/boards/:boardId/custom-fields', function(
    req,
    res,
  ) {
    Authentication.checkUserId(req.userId);
    const paramBoardId = req.params.boardId;
    JsonRoutes.sendResult(res, {
      code: 200,
      data: CustomFields.find({ boardIds: { $in: [paramBoardId] } }).map(
        function(cf) {
          return {
            _id: cf._id,
            name: cf.name,
            type: cf.type,
          };
        },
      ),
    });
  });

  /**
   * @operation get_custom_field
   * @summary Get a Custom Fields attached to a board
   *
   * @param {string} boardID the ID of the board
   * @param {string} customFieldId the ID of the custom field
   * @return_type [{_id: string,
   *                boardIds: string}]
   */
  JsonRoutes.add(
    'GET',
    '/api/boards/:boardId/custom-fields/:customFieldId',
    function(req, res) {
      Authentication.checkUserId(req.userId);
      const paramBoardId = req.params.boardId;
      const paramCustomFieldId = req.params.customFieldId;
      JsonRoutes.sendResult(res, {
        code: 200,
        data: CustomFields.findOne({
          _id: paramCustomFieldId,
          boardIds: { $in: [paramBoardId] },
        }),
      });
    },
  );

  /**
   * @operation new_custom_field
   * @summary Create a Custom Field
   *
   * @param {string} boardID the ID of the board
   * @param {string} name the name of the custom field
   * @param {string} type the type of the custom field
   * @param {string} settings the settings object of the custom field
   * @param {boolean} showOnCard should we show the custom field on cards?
   * @param {boolean} automaticallyOnCard should the custom fields automatically be added on cards?
   * @param {boolean} showLabelOnMiniCard should the label of the custom field be shown on minicards?
   * @param {boolean} showSumAtTopOfList should the sum of the custom fields be shown at top of list?
   * @return_type {_id: string}
   */
  JsonRoutes.add('POST', '/api/boards/:boardId/custom-fields', function(
    req,
    res,
  ) {
    Authentication.checkUserId(req.userId);
    const paramBoardId = req.params.boardId;
    const board = Boards.findOne({ _id: paramBoardId });
    const id = CustomFields.direct.insert({
      name: req.body.name,
      type: req.body.type,
      settings: req.body.settings,
      showOnCard: req.body.showOnCard,
      automaticallyOnCard: req.body.automaticallyOnCard,
      showLabelOnMiniCard: req.body.showLabelOnMiniCard,
      showSumAtTopOfList: req.body.showSumAtTopOfList,
      boardIds: [board._id],
    });

    const customField = CustomFields.findOne({
      _id: id,
      boardIds: { $in: [paramBoardId] },
    });
    customFieldCreation(req.body.authorId, customField);

    JsonRoutes.sendResult(res, {
      code: 200,
      data: {
        _id: id,
      },
    });
  });

  /**
   * @operation edit_custom_field
   * @summary Update a Custom Field
   *
   * @param {string} name the name of the custom field
   * @param {string} type the type of the custom field
   * @param {string} settings the settings object of the custom field
   * @param {boolean} showOnCard should we show the custom field on cards
   * @param {boolean} automaticallyOnCard should the custom fields automatically be added on cards
   * @param {boolean} showLabelOnMiniCard should the label of the custom field be shown on minicards
   * @param {boolean} showSumAtTopOfList should the sum of the custom fields be shown at top of list
   * @return_type {_id: string}
   */
  JsonRoutes.add(
    'PUT',
    '/api/boards/:boardId/custom-fields/:customFieldId',
    (req, res) => {
      Authentication.checkUserId(req.userId);
      const paramBoardId = req.params.boardId;
      const paramFieldId = req.params.customFieldId;

      if (req.body.hasOwnProperty('name')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { name: req.body.name } },
        );
      }
      if (req.body.hasOwnProperty('type')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { type: req.body.type } },
        );
      }
      if (req.body.hasOwnProperty('settings')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { settings: req.body.settings } },
        );
      }
      if (req.body.hasOwnProperty('showOnCard')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { showOnCard: req.body.showOnCard } },
        );
      }
      if (req.body.hasOwnProperty('automaticallyOnCard')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { automaticallyOnCard: req.body.automaticallyOnCard } },
        );
      }
      if (req.body.hasOwnProperty('alwaysOnCard')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { alwaysOnCard: req.body.alwaysOnCard } },
        );
      }
      if (req.body.hasOwnProperty('showLabelOnMiniCard')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { showLabelOnMiniCard: req.body.showLabelOnMiniCard } },
        );
      }

      if (req.body.hasOwnProperty('showSumAtTopOfList')) {
        CustomFields.direct.update(
          { _id: paramFieldId },
          { $set: { showSumAtTopOfList: req.body.showSumAtTopOfList } },
        );
      }


      JsonRoutes.sendResult(res, {
        code: 200,
        data: { _id: paramFieldId },
      });
    },
  );

  /**
   * @operation add_custom_field_dropdown_items
   * @summary Update a Custom Field's dropdown items
   *
   * @param {string} [items] names of the custom field
   * @return_type {_id: string}
   */
  JsonRoutes.add(
    'POST',
    '/api/boards/:boardId/custom-fields/:customFieldId/dropdown-items',
    (req, res) => {
      Authentication.checkUserId(req.userId);
      const paramBoardId = req.params.boardId;
      const paramCustomFieldId = req.params.customFieldId;
      const paramItems = req.body.items;

      if (req.body.hasOwnProperty('items')) {
        if (Array.isArray(paramItems)) {
          CustomFields.direct.update(
            { _id: paramCustomFieldId },
            {
              $push: {
                'settings.dropdownItems': {
                  $each: paramItems
                    .filter(name => typeof name === 'string')
                    .map(name => ({
                      _id: Random.id(6),
                      name,
                    })),
                },
              },
            },
          );
        }
      }

      JsonRoutes.sendResult(res, {
        code: 200,
        data: { _id: paramCustomFieldId },
      });
    },
  );

  /**
   * @operation edit_custom_field_dropdown_item
   * @summary Update a Custom Field's dropdown item
   *
   * @param {string} name names of the custom field
   * @return_type {_id: string}
   */
  JsonRoutes.add(
    'PUT',
    '/api/boards/:boardId/custom-fields/:customFieldId/dropdown-items/:dropdownItemId',
    (req, res) => {
      Authentication.checkUserId(req.userId);
      const paramBoardId = req.params.boardId;
      const paramDropdownItemId = req.params.dropdownItemId;
      const paramCustomFieldId = req.params.customFieldId;
      const paramName = req.body.name;

      if (req.body.hasOwnProperty('name')) {
        CustomFields.direct.update(
          {
            _id: paramCustomFieldId,
            'settings.dropdownItems._id': paramDropdownItemId,
          },
          {
            $set: {
              'settings.dropdownItems.$': {
                _id: paramDropdownItemId,
                name: paramName,
              },
            },
          },
        );
      }

      JsonRoutes.sendResult(res, {
        code: 200,
        data: { _id: customFieldId },
      });
    },
  );

  /**
   * @operation delete_custom_field_dropdown_item
   * @summary Update a Custom Field's dropdown items
   *
   * @param {string} itemId ID of the dropdown item
   * @return_type {_id: string}
   */
  JsonRoutes.add(
    'DELETE',
    '/api/boards/:boardId/custom-fields/:customFieldId/dropdown-items/:dropdownItemId',
    (req, res) => {
      Authentication.checkUserId(req.userId);
      const paramBoardId = req.params.boardId;
      paramCustomFieldId = req.params.customFieldId;
      paramDropdownItemId = req.params.dropdownItemId;

      CustomFields.direct.update(
        { _id: paramCustomFieldId },
        {
          $pull: {
            'settings.dropdownItems': { _id: paramDropdownItemId },
          },
        },
      );

      JsonRoutes.sendResult(res, {
        code: 200,
        data: { _id: paramCustomFieldId },
      });
    },
  );

  /**
   * @operation delete_custom_field
   * @summary Delete a Custom Fields attached to a board
   *
   * @description The Custom Field can't be retrieved after this operation
   *
   * @param {string} boardID the ID of the board
   * @param {string} customFieldId the ID of the custom field
   * @return_type {_id: string}
   */
  JsonRoutes.add(
    'DELETE',
    '/api/boards/:boardId/custom-fields/:customFieldId',
    function(req, res) {
      Authentication.checkUserId(req.userId);
      const paramBoardId = req.params.boardId;
      const id = req.params.customFieldId;
      CustomFields.remove({ _id: id, boardIds: { $in: [paramBoardId] } });
      JsonRoutes.sendResult(res, {
        code: 200,
        data: {
          _id: id,
        },
      });
    },
  );
}

export default CustomFields;
