import type { TypesaurusUtils as Utils } from "./utils.js";
import type { TypesaurusCore as Core } from "./core.js";
import type { TypesaurusUpdate as Update } from "./update.js";
export declare const transaction: TypesaurusTransaction.Function;
export declare namespace TypesaurusTransaction {
    interface Function {
        <Schema extends Core.PlainSchema, Environment extends Core.RuntimeEnvironment, Props extends Core.DocProps & {
            environment: Environment;
        }>(db: Core.DB<Schema>, options?: Core.OperationOptions<Environment>): ReadChain<Schema, Props>;
    }
    /**
     * The document reference type.
     */
    interface ReadRef<Def extends Core.DocDef, Props extends Core.DocProps> {
        type: "ref";
        collection: ReadCollection<Def, Props>;
        id: Def["Id"];
    }
    /**
     * The document reference type.
     */
    interface WriteRef<Def extends Core.DocDef, Props extends Core.DocProps> extends DocAPI<Def, Props> {
        type: "ref";
        collection: WriteCollection<Def, Props>;
        id: Def["Id"];
    }
    interface DocAPI<Def extends Core.DocDef, Props extends Core.DocProps> {
        set(data: Core.AssignArg<Core.IntersectVariableModelType<Def["Model"]>, Props>): void;
        update(data: Update.Arg<Def, Props>): void;
        upset(data: Core.AssignArg<Core.IntersectVariableModelType<Def["Model"]>, Props>): void;
        remove(): void;
    }
    /**
     * The document type. It contains the reference in the DB and the model data.
     */
    interface ReadDoc<Def extends Core.DocDef, Props extends Core.DocProps> {
        type: "doc";
        ref: ReadRef<Def, Props>;
        data: Props["environment"] extends "server" ? Core.ServerData<Core.IntersectVariableModelType<Def["Model"]>> : Core.Data<Core.IntersectVariableModelType<Def["Model"]>, "present">;
        props: Props;
    }
    /**
     * The document type. It contains the reference in the DB and the model data.
     */
    interface WriteDoc<Def extends Core.DocDef, Props extends Core.DocProps> extends DocAPI<Def, Props> {
        type: "doc";
        ref: WriteRef<Def, Props>;
        data: Props["environment"] extends "server" ? Core.ServerData<Core.IntersectVariableModelType<Def["Model"]>> : Core.Data<Core.IntersectVariableModelType<Def["Model"]>, "present">;
        props: Props;
        narrow<NarrowToModel extends Core.ModelType>(fn: Core.DocNarrowFunction<Core.IntersectVariableModelType<Def["WideModel"]>, NarrowToModel>): WriteDoc<{
            Model: NarrowToModel;
            Name: Def["Name"];
            Id: Def["Id"];
            WideModel: Def["WideModel"];
            Flags: Def["Flags"] & {
                Reduced: true;
            };
        }, Props> | undefined;
    }
    type AnyWriteCollection<Def extends Core.DocDef, Props extends Core.DocProps> = WriteCollection<Def, Props> | NestedWriteCollection<Def, Props, WriteSchema<Props>>;
    interface WriteSchema<Props extends Core.DocProps> {
        [CollectionPath: string]: AnyWriteCollection<Core.DocDef, Props>;
    }
    interface NestedWriteCollection<Def extends Core.DocDef, Props extends Core.DocProps, NestedSchema extends WriteSchema<Props>> extends WriteCollection<Def, Props> {
        (id: Def["Id"]): NestedSchema;
    }
    /**
     *
     */
    interface WriteCollection<Def extends Core.DocDef, Props extends Core.DocProps> {
        /** The Firestore path */
        path: string;
        set(id: Def["Id"], data: Core.AssignArg<Core.IntersectVariableModelType<Def["Model"]>, Props>): void;
        upset(id: Def["Id"], data: Core.AssignArg<Core.IntersectVariableModelType<Def["Model"]>, Props>): void;
        update(id: Def["Id"], data: Update.Arg<Def, Props>): void;
        remove(id: Def["Id"]): void;
    }
    type AnyReadCollection<Def extends Core.DocDef, Props extends Core.DocProps> = ReadCollection<Def, Props> | NestedReadCollection<Def, Props, ReadSchema<Props>>;
    interface ReadSchema<Props extends Core.DocProps> {
        [CollectionPath: string]: AnyReadCollection<Core.DocDef, Props>;
    }
    interface NestedReadCollection<Def extends Core.DocDef, Props extends Core.DocProps, NestedSchema extends ReadSchema<Props>> extends ReadCollection<Def, Props> {
        (id: Def["Id"]): NestedSchema;
    }
    interface ReadCollection<Def extends Core.DocDef, Props extends Core.DocProps> extends Core.PlainCollection<Def> {
        /** The Firestore path */
        path: string;
        get(id: Def["Id"]): Promise<ReadDoc<Def, Props> | null>;
    }
    /**
     * The transaction read API object. It contains {@link ReadHelpers.get|get}
     * the function that allows reading documents from the database.
     */
    interface ReadHelpers<Schema extends Core.PlainSchema, Props extends Core.DocProps> {
        db: ReadDB<Schema, Props>;
    }
    /**
     * The transaction write API object. It unions a set of functions ({@link WriteHelpers.set|set},
     * {@link WriteHelpers.update|update} and {@link WriteHelpers.remove|remove})
     * that are similar to regular set, update and remove with the only
     * difference that the transaction counterparts will retry writes if
     * the state of data received with {@link ReadHelpers.get|get} would change.
     */
    interface WriteHelpers<Schema extends Core.PlainSchema, ReadResult, Props extends Core.DocProps> {
        /** The result of the read function. */
        result: ReadDocsToWriteDocs<ReadResult, Props>;
        db: WriteDB<Schema, Props>;
    }
    type ReadDocsToWriteDocs<Result, Props extends Core.DocProps> = Result extends ReadDoc<infer Def, Props> ? WriteDoc<Def, Props> : Result extends ReadRef<infer Def, Props> ? WriteRef<Def, Props> : Result extends object ? {
        [Key in keyof Result]: ReadDocsToWriteDocs<Result[Key], Props>;
    } : Result;
    interface ReadChain<Schema extends Core.PlainSchema, Props extends Core.DocProps> {
        read: <ReadResult>(callback: ReadFunction<Schema, ReadResult, Props>) => WriteChain<Schema, ReadResult, Props>;
    }
    /**
     * The transaction body function type.
     */
    type ReadFunction<Schema extends Core.PlainSchema, ReadResult, Props extends Core.DocProps> = ($: ReadHelpers<Schema, Props>) => Promise<ReadResult>;
    interface WriteChain<Schema extends Core.PlainSchema, ReadResult, Props extends Core.DocProps> {
        write: <WriteResult>(callback: WriteFunction<Schema, ReadResult, WriteResult, Props>) => WriteDocsToDocs<WriteResult, Props>;
    }
    /**
     * The transaction body function type.
     */
    type WriteFunction<Schema extends Core.PlainSchema, ReadResult, WriteResult, Props extends Core.DocProps> = ($: WriteHelpers<Schema, ReadResult, Props>) => WriteResult;
    type ReadDB<Schema extends Core.PlainSchema, Props extends Core.DocProps, BasePath extends string | false = false> = {
        [Name in keyof Schema]: Name extends string ? Schema[Name] extends Core.NestedPlainCollection<infer Model, infer Schema, infer CustomId, infer CustomName> ? NestedReadCollection<{
            Model: Model;
            Name: CustomName extends string ? CustomName : Name;
            Id: CustomId extends Core.Id<any> | string ? CustomId : Core.Id<Utils.ComposePath<BasePath, Name>>;
            WideModel: Model;
            Flags: Core.DocDefFlags;
        }, Props, ReadDB<Schema, Props, Utils.ComposePath<BasePath, Name>>> : Schema[Name] extends Core.PlainCollection<infer Model, infer CustomId, infer CustomName> ? ReadCollection<{
            Model: Model;
            Name: CustomName extends string ? CustomName : Name;
            Id: CustomId extends Core.Id<any> | string ? CustomId : Core.Id<Utils.ComposePath<BasePath, Name>>;
            WideModel: Model;
            Flags: Core.DocDefFlags;
        }, Props> : never : never;
    };
    type WriteDocsToDocs<Result, Props extends Core.DocProps> = Result extends WriteDoc<infer Def, Props> ? Core.Doc<Def, Props> : Result extends WriteRef<infer Def, Props> ? Core.Ref<Def> : Result extends object ? {
        [Key in keyof Result]: WriteDocsToDocs<Result[Key], Props>;
    } : Result;
    type WriteDB<Schema extends Core.PlainSchema, Props extends Core.DocProps, BasePath extends string | false = false> = {
        [Name in keyof Schema]: Name extends string ? Schema[Name] extends Core.NestedPlainCollection<infer Model, infer Schema, infer CustomId, infer CustomName> ? NestedWriteCollection<{
            Model: Model;
            Name: CustomName extends string ? CustomName : Name;
            Id: CustomId extends Core.Id<any> | string ? CustomId : Core.Id<Utils.ComposePath<BasePath, Name>>;
            WideModel: Model;
            Flags: Core.DocDefFlags;
        }, Props, WriteDB<Schema, Props, Utils.ComposePath<BasePath, Name>>> : Schema[Name] extends Core.PlainCollection<infer Model, infer CustomId, infer CustomName> ? WriteCollection<{
            Model: Model;
            Name: CustomName extends string ? CustomName : Name;
            Id: CustomId extends Core.Id<any> | string ? CustomId : Core.Id<Utils.ComposePath<BasePath, Name>>;
            WideModel: Model;
            Flags: Core.DocDefFlags;
        }, Props> : never : never;
    };
}