import type { OnNext, OnBack, GetState, SetState } from "../controls";
/**
 * Defines the structure and behavior of a multi-step form.
 */
export type Schema<T = unknown> = ListSchema<T>;
/**
 * Defines the structure and behavior of any element in a multi-step form.
 */
export type ItemSchema<T = unknown> = FlowSchema<T> | FormSchema<T> | YieldSchema | ReturnSchema | VariablesSchema;
/**
 * Defines the structure and behavior of any flow element in a multi-step form.
 */
export type FlowSchema<T = unknown> = ListSchema<T> | CondSchema<T> | LoopSchema<T> | SwitchSchema<T>;
/**
 * Defines the structure and behavior of a list element in a multi-step form.
 */
export type ListSchema<T = unknown> = ItemSchema<T>[];
/**
 * Defines the structure and behavior of a condition element in a multi-step form.
 */
export type CondSchema<T = unknown> = {
    cond: {
        if: (inputs: Record<string, unknown>) => boolean;
        then: ListSchema<T>;
        else: ListSchema<T>;
    };
};
/**
 * Defines the structure and behavior of a loop element in a multi-step form.
 */
export type LoopSchema<T = unknown> = {
    loop: {
        while: (inputs: Record<string, unknown>) => boolean;
        do: ListSchema<T>;
    };
};
/**
 * Defines the structure and behavior of a switch element in a multi-step form.
 */
export type SwitchSchema<T = unknown> = {
    switch: {
        branches: {
            case: (inputs: Record<string, unknown>) => boolean;
            then: ListSchema<T>;
        }[];
        default: ListSchema<T>;
    };
};
/**
 * Defines the structure and behavior of a form element in a multi-step form.
 */
export type FormSchema<T = unknown> = {
    form: {
        values: (inputs: Record<string, unknown>) => Record<string, [unknown, PropertyKey[]]>;
        render: (args: {
            inputs: Record<string, unknown>;
            values: Record<string, unknown>;
            params: Record<string, unknown>;
            onNext: OnNext<Record<string, unknown>>;
            onBack: OnBack<Record<string, unknown>>;
            getState: GetState<Record<string, unknown>>;
            setState: SetState;
        }) => T;
    };
};
/**
 * Defines the structure and behavior of a yield element in a multi-step form.
 */
export type YieldSchema = {
    yield: {
        next: (inputs: Record<string, unknown>) => unknown[];
        back: (inputs: Record<string, unknown>) => unknown[];
    };
};
/**
 * Defines the structure and behavior of a return element in a multi-step form.
 */
export type ReturnSchema = {
    return: (inputs: Record<string, unknown>) => unknown;
};
/**
 * Defines the structure and behavior of a variables element in a multi-step form.
 */
export type VariablesSchema = {
    variables: (inputs: Record<string, unknown>) => Record<string, unknown>;
};
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