import type { Address } from 'abitype'

import type { OneOf } from '../../../types/utils.js'
import type { Policy } from './policy.js'

/** @internal */
export type CustomPermission<data = unknown, type = { custom: string }> = {
  data: data
  type: type
}

/** @internal */
export type NativeTokenTransferPermission = {
  type: 'native-token-transfer'
  data: {
    /** Native token ticker (e.g. ETH). */
    ticker: string
  }
}

/** @internal */
export type Erc20TokenTransferPermission = {
  type: 'erc20-token-transfer'
  data: {
    /** ERC20 address. */
    address: Address
    /** Native token ticker (e.g. ETH). */
    ticker: string
  }
}

/** @internal */
export type ContractCallPermission = {
  type: 'contract-call'
  data: {
    /** Contract address. */
    address: Address
    /** Set of contract signatures to permit. */
    calls: string[]
  }
}

export type Permission<uint256 = bigint> = OneOf<
  | NativeTokenTransferPermission
  | Erc20TokenTransferPermission
  | ContractCallPermission
  | CustomPermission
> & {
  /** Set of policies for the permission. */
  policies: readonly Policy<uint256>[]
  /** Whether or not the wallet must grant the permission. */
  required?: boolean | undefined
}