import { Sequelize } from 'sequelize-typescript' type SortType = { sortModel: any, sortValue: string } // Translate for example "-name" to [ [ 'name', 'DESC' ], [ 'id', 'ASC' ] ] function getSort (value: string, lastSort: string[] = [ 'id', 'ASC' ]) { let { direction, field } = buildDirectionAndField(value) if (field.toLowerCase() === 'match') { // Search field = Sequelize.col('similarity') } return [ [ field, direction ], lastSort ] } function getVideoSort (value: string, lastSort: string[] = [ 'id', 'ASC' ]) { let { direction, field } = buildDirectionAndField(value) // Alias if (field.toLowerCase() === 'match') { // Search field = Sequelize.col('similarity') } else if (field.toLowerCase() === 'trending') { // Sort by aggregation return [ [ Sequelize.fn('COALESCE', Sequelize.fn('SUM', Sequelize.col('VideoViews.views')), '0'), direction ], [ Sequelize.col('VideoModel.views'), direction ], lastSort ] } return [ [ field, direction ], lastSort ] } function getSortOnModel (model: any, value: string, lastSort: string[] = [ 'id', 'ASC' ]) { let [ firstSort ] = getSort(value) if (model) return [ [ model, firstSort[0], firstSort[1] ], lastSort ] return [ firstSort, lastSort ] } function throwIfNotValid (value: any, validator: (value: any) => boolean, fieldName = 'value') { if (validator(value) === false) { throw new Error(`"${value}" is not a valid ${fieldName}.`) } } function buildTrigramSearchIndex (indexName: string, attribute: string) { return { name: indexName, fields: [ Sequelize.literal('lower(immutable_unaccent(' + attribute + '))') as any ], using: 'gin', operator: 'gin_trgm_ops' } } function createSimilarityAttribute (col: string, value: string) { return Sequelize.fn( 'similarity', searchTrigramNormalizeCol(col), searchTrigramNormalizeValue(value) ) } function buildBlockedAccountSQL (serverAccountId: number, userAccountId?: number) { const blockerIds = [ serverAccountId ] if (userAccountId) blockerIds.push(userAccountId) const blockerIdsString = blockerIds.join(', ') const query = 'SELECT "targetAccountId" AS "id" FROM "accountBlocklist" WHERE "accountId" IN (' + blockerIdsString + ')' + ' UNION ALL ' + 'SELECT "account"."id" AS "id" FROM account INNER JOIN "actor" ON account."actorId" = actor.id ' + 'INNER JOIN "serverBlocklist" ON "actor"."serverId" = "serverBlocklist"."targetServerId" ' + 'WHERE "serverBlocklist"."accountId" IN (' + blockerIdsString + ')' return query } // --------------------------------------------------------------------------- export { buildBlockedAccountSQL, SortType, getSort, getVideoSort, getSortOnModel, createSimilarityAttribute, throwIfNotValid, buildTrigramSearchIndex } // --------------------------------------------------------------------------- function searchTrigramNormalizeValue (value: string) { return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', value)) } function searchTrigramNormalizeCol (col: string) { return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', Sequelize.col(col))) } function buildDirectionAndField (value: string) { let field: any let direction: 'ASC' | 'DESC' if (value.substring(0, 1) === '-') { direction = 'DESC' field = value.substring(1) } else { direction = 'ASC' field = value } return { direction, field } }