import { ConditionParam, Constructable, TableType } from "../util.ts";
import { ChainModifyReturning } from "./_modify.ts";
/** @public */
export interface UpdateOption {
    as?: string;
}
/**
 * @public
 * @example
 * ```ts
 *  update("table1 AS t").where("t.id = b.id") // UPDATE table1 AS t WHERE t.id = b.id
 *  update("table1",{ as: "t" }).set({ k:"'v'"}) // UPDATE table1 AS t SET t.k = 'v'
 *  update("table1").where("id = 1") // UPDATE table1 AS t WHERE id = 1
 * ```
 */
export interface UpdateSqlGenerator {
    <T extends TableType>(table: string, options?: UpdateOption): ChainUpdate<T>;
}
/** @public */
export interface ChainUpdate<T extends TableType = TableType> {
    set(value: Constructable<{
        [key in keyof T]?: string;
    } | string>): ChainUpdateAfterSet;
}
/** @public */
export interface ChainUpdateAfterSet extends ChainUpdateAfterForm {
    /**
     * @example
     * ```ts
     *
     * update({age: "3", name: "'hi'", count:"b.count"}, "a")
     *  .from("table1 AS b", "(SELECT k FROM table2) AS c")
     *  .where(...)
     * // UPDATE table AS a
     * // FROM table1 AS b, (SELECT k FROM table2) AS c
     * // SET a.age=3, a.name='hi', a.count=b.count
     * // WHERE ...
     * ```
     */
    from(...table: (Constructable<string> | {
        selectable: Constructable<string>;
        as: string;
    })[]): ChainUpdateAfterForm;
}
/** @public */
export interface ChainUpdateAfterForm extends ChainUpdateReturning {
    where(where: Constructable<ConditionParam | void>): ChainUpdateReturning;
}
/** @public */
export interface ChainUpdateReturning extends ChainModifyReturning {
}