directus

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import type { Knex } from 'knex';
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import type { FnHelperOptions } from '../types.js';
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import { FnHelper } from '../types.js';
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const parseLocaltime = (columnType?: string) => {
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	if (columnType === 'timestamp') {
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		return ` AT TIME ZONE 'UTC'`;
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	}
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	return '';
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};
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export class FnHelperMSSQL extends FnHelper {
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	year(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(year, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	month(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(month, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	week(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(week, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	day(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(day, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	weekday(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(weekday, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	hour(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(hour, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	minute(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(minute, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	second(table: string, column: string, options: FnHelperOptions): Knex.Raw {
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		return this.knex.raw(`DATEPART(second, ??.??${parseLocaltime(options?.type)})`, [table, column]);
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	}
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	count(table: string, column: string, options?: FnHelperOptions): Knex.Raw<any> {
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		const collectionName = options?.originalCollectionName || table;
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		const type = this.schema.collections?.[collectionName]?.fields?.[column]?.type ?? 'unknown';
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		if (type === 'json') {
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			return this.knex.raw(`(SELECT COUNT(*) FROM OPENJSON(??.??, '$'))`, [table, column]);
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		}
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		if (type === 'alias') {
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			return this._relationalCount(table, column, options);
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		}
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		throw new Error(`Couldn't extract type from ${table}.${column}`);
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	}
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}
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