ERC-7425: Tokenized Reserve

// SPDX-License-Identifier: CC0-1.0

pragma solidity ^0.8.0;
import "./ERC4626.sol";
    
interface TokenReserve is ERC4626{
	/**
	* @dev Event emitted after a new proposal is created
	*/
	event proposals(
	    	address indexed token,
	    	uint256 indexed proposalNum,
	    	uint256 indexed amount,
		address recipient
	);
	/**
	* @dev Event emitted after a new deposit is made by the owner
	*/
	event depositR(
		address indexed token,
	    	uint256 indexed amount,
	    	uint256 indexed time,
	    	uint256 count
	);
	/** 
	* @dev Get time of a deposit made to reserve with depositReserve()
	* @param count Number matching deposit
	* @return block.timestamp format
	*/
	function depositTime(uint256 count) external view returns (uint256);
	/** 
	* @dev Get amount deposited to reserve with depositReserve() 
	* @param count Number of deposit
	* @return uint256 number of any asset that were deposited
	*/
	function ownerDeposit(uint256 count) external view returns(uint256);
	/**
	* @dev Token type deposited to reserve with depositReserve()
	* - MUST be an address of ERC20 token
	* @param count Number of deposit
	*/
	function tokenDeposit(uint256 count) external view returns(address);
	/**
	* @dev Amount deposited for shares of proposal by the user
	* - MUST be an ERC20 address
	* @param user address of user
	* @param proposal number of the proposal the user deposited
	*/
	function userDeposit(address user, uint256 proposal) external view returns(uint256);
	/**
	* @dev Token used for given proposal
	* - MUST be ERC20 address
	* @param proposal number for requested token
	* @return token address
	*/
	function proposalToken(uint256 proposal) external view returns(address);
	/**
	* @dev Amount withdrawn for given opened proposal
	*/
	function proposalWithdrew(uint256 proposal) external view returns(uint256);
	/**
	* @dev Amount received for given closed proposal
	*/
	function proposalDeposited(uint256 proposal) external view returns(uint256);
	/**
	* @dev Make a deposit to a proposal creating new shares with deposit function from ERC-4626
	* - MUST be opened proposal
	* - MUST NOT be opened proposal that was closed
	* NOTE: using the deposit() will cause assets to not be accounted for in a proposal
	* @param assets Amount being deposited
	* @param receiver Address of depositor
	* @param proposal Number associated proposal
	*/
	function proposalDeposit(uint256 assets, address receiver, uint256 proposal) external virtual returns(uint256);
	/**
	* @dev Burn shares, receive 1 to 1 value of shares
	* - MUST have closed proposalNumber
	* - MUST have userDeposit greater than or equal to userWithdrawal
	* @param assets Amount being deposited
	* @param receiver Address of receiver
	* @param owner Address of token owner
	* @param proposal Number associated proposal
	*/
	function proposalWithdraw(uint256 assets, address receiver, address owner, uint256 proposal)external virtual returns(uint256);
	/**
	* @dev Issue new proposal
	* - MUST create new proposal number
	* - MUST account for amount withdrawn
	* - MUST emit proposals event
	* @param token Address of ERC-20 token
	* @param amount Token amount being withdrawn
	* @param receiver Address of token recipient
	*/
	function proposalOpen(address token, uint256 amount, address receiver) external virtual returns (uint256);
	/**
	* @dev Make deposit and/or choose to close an opened proposal
	* - MUST account for amount received
	* - MUST be a proposal that is less than or equal to current proposal
	* - MUST emit proposals event
	* @param token Address of ERC-20 token
	* @param proposal Number of desired proposal
	* @param amount Token amount being deposited to the reserve
	* @param close Choose to close the proposal
	*/
	function proposalClose(address token, uint256 proposal, uint256 amount, bool close) external virtual returns (bool);
	/**
	* @dev Optional accounting for tokens deposited by owner
	* - MUST be reserve owner
	* - MUST emit depositR event
	* NOTE: No shares are issued, funds can not be redeemed. Only withdrawn from proposalOpen
	* @param token Address of ERC-20 token
	* @param sender Address of where tokens from
	* @param amount Token amount being deposited
	*/
	function depositReserve(address token, address sender, uint256 amount) external virtual;
}