import { AdapterFlags } from "@decaf-ts/core";
/**
 * @description Response from a CouchDB Mango query
 * @summary Contains the matching documents and additional metadata about the query execution
 * @interface MangoResponse
 * @template D - The document type
 * @memberOf module:for-couchdb
 * @see Docs: {@link https://docs.couchdb.org/en/latest/api/database/find.html#db-find}
 */
export interface MangoResponse<D> {
    /** Array of documents matching the search.
     *
     * In each matching document, the fields specified in the fields part of the request body are listed, along with
     * their values. */
    docs: (D & {
        _id: string;
        _rev: string;
    })[];
    /** A string that enables you to specify which page of results you require.
     *
     * Used for paging through result sets. */
    bookmark?: string;
    /** Execution warnings */
    warning?: string;
    /** Basic execution statistics for a specific request. */
    execution_stats?: MangoExecutionStats;
}
/**
 * @description Statistics about the execution of a Mango query
 * @summary Provides detailed metrics about query execution including document and key examination counts
 * @interface MangoExecutionStats
 * @memberOf module:for-couchdb
 * @see Docs: {@link http://docs.couchdb.org/en/latest/api/database/find.html#execution-statistics}
 */
export interface MangoExecutionStats {
    /** Number of index keys examined. Currently always 0. */
    total_keys_examined: number;
    /** Number of documents fetched from the database / index.
     *
     * Equivalent to using include_docs = true in a view. */
    total_docs_examined: number;
    /** Number of documents fetched from the database using an out-of-band document fetch.
     *
     * This is only non-zero when read quorum > 1 is specified in the query parameters. */
    total_quorum_docs_examined: number;
    /** Number of results returned from the query. */
    results_returned: number;
    /** Total execution time in milliseconds as measured by the database. */
    execution_time_ms: number;
}
/**
 * @description Parameters for creating a CouchDB Mango index
 * @summary Defines the structure and configuration for a new Mango index
 * @interface CreateIndexRequest
 * @memberOf module:for-couchdb
 * @see Docs: {@link http://docs.couchdb.org/en/latest/api/database/find.html#db-index}
 */
export interface CreateIndexRequest {
    /** JSON object describing the index to create */
    index: {
        /** Array of field names following the sort syntax. */
        fields: SortOrder[];
        /** A selector to apply to documents at indexing time, creating a partial index. */
        partial_filter_selector?: MangoSelector;
    };
    /** Name of the design document in which the index will be created. */
    ddoc?: string;
    /** Name of the index. If no name is provided, a name will be generated automatically. */
    name?: string;
    /** Can be "json" or "text".
     *
     * @default "json" */
    type?: "json" | "text";
    /** This field sets whether the created index will be a partitioned or global index. */
    partitioned?: boolean;
}
/**
 * @description Represents the possible value types in a Mango query
 * @summary Union type of all possible value types that can be used in Mango queries
 * @typedef {(number|string|Date|boolean|object|null)} MangoValue
 * @memberOf module:for-couchdb
 */
export type MangoValue = number | string | Date | boolean | object | null;
/**
 * @description Operators available in Mango queries
 * @summary Union type of all possible operators that can be used in Mango queries
 * @typedef {string} MangoOperator
 * @memberOf module:for-couchdb
 */
export type MangoOperator = "$lt" | "$lte" | "$eq" | "$ne" | "$gte" | "$gt" | "$exists" | "$type" | "$in" | "$nin" | "$size" | "$mod" | "$regex" | "$or" | "$and" | "$nor" | "$not" | "$all" | "$allMatch" | "$elemMatch";
/**
 * @description Represents a CouchDB Mango query selector
 * @summary Type for defining query conditions in Mango queries
 * @typedef {Object} MangoSelector
 * @memberOf module:for-couchdb
 * @see Docs: {@link http://docs.couchdb.org/en/latest/api/database/find.html#selector-syntax}
 */
export type MangoSelector = {
    [K in MangoOperator | string]: MangoSelector | MangoSelector[] | MangoValue | MangoValue[];
};
/**
 * @description Represents a sort order specification in Mango queries
 * @summary Type for defining sort order in Mango queries
 * @typedef {(string|string[]|Object)} SortOrder
 * @memberOf module:for-couchdb
 * @see Docs: {@link http://docs.couchdb.org/en/latest/api/database/find.html#sort-syntax}
 */
export type SortOrder = string | string[] | {
    [key: string]: "asc" | "desc";
};
/**
 * @description Represents a CouchDB Mango query
 * @summary Interface for defining complete Mango queries with selectors, sorting, pagination, and other options
 * @interface MangoQuery
 * @memberOf module:for-couchdb
 * @see Docs: {@link https://docs.couchdb.org/en/latest/api/database/find.html#db-find}
 */
export interface MangoQuery {
    /** JSON object describing criteria used to select documents. */
    selector: MangoSelector;
    /** Maximum number of results returned. @default 25 */
    limit?: number;
    /** Skip the first 'n' results, where 'n' is the value specified. */
    skip?: number;
    /** JSON array following sort syntax. */
    sort?: SortOrder[];
    /** JSON array specifying which fields of each object should be returned.
     *
     * If it is omitted, the entire object is returned.
     *
     * @see Docs: {@link http://docs.couchdb.org/en/latest/api/database/find.html#filtering-fields} */
    fields?: string[];
    use_index?: string | [string, string];
    /** Read quorum needed for the result.
     *
     * @default 1 */
    r?: number;
    /** A string that enables you to specify which page of results you require.
     *
     * Used for paging through result sets. */
    bookmark?: string;
    /** Whether to update the index prior to returning the result.
     *
     * @default true */
    update?: boolean;
    /** Whether or not the view results should be returned from a “stable” set of shards. */
    stable?: boolean;
    /** Combination of update = false and stable = true options.
     *
     * Possible options: "ok", false (default). */
    stale?: "ok" | false;
    /** Include execution statistics in the query response.
     *
     * Optional, default: false. */
    execution_stats?: boolean;
}
export interface ViewRow<D = any> {
    id?: string;
    key?: any;
    value?: any;
    doc?: D;
}
export interface ViewResponse<D = any> {
    total_rows?: number;
    offset?: number;
    rows: ViewRow<D>[];
}
export interface CouchDBFlags extends Partial<AdapterFlags> {
    /**
     * When true, non-default Mango queries try to attach a generated named index.
     * Default-query index selection remains unchanged.
     */
    forceNamedIndexes?: boolean;
}