Deployer API

event CryptoPoolDeployed:
    token: address
    coins: address[2]
    A: uint256
    gamma: uint256
    mid_fee: uint256
    out_fee: uint256
    allowed_extra_profit: uint256
    fee_gamma: uint256
    adjustment_step: uint256
    admin_fee: uint256
    ma_half_time: uint256
    initial_price: uint256
    deployer: address

N_COINS: constant(int128) = 2
A_MULTIPLIER: constant(uint256) = 10000

# Limits
MAX_ADMIN_FEE: constant(uint256) = 10 * 10 ** 9
MIN_FEE: constant(uint256) = 5 * 10 ** 5  # 0.5 bps
MAX_FEE: constant(uint256) = 10 * 10 ** 9

MIN_GAMMA: constant(uint256) = 10 ** 10
MAX_GAMMA: constant(uint256) = 2 * 10 ** 16

MIN_A: constant(uint256) = N_COINS ** N_COINS * A_MULTIPLIER / 10
MAX_A: constant(uint256) = N_COINS ** N_COINS * A_MULTIPLIER * 100000

@external
def deploy_pool(
    _name: String[32],
    _symbol: String[10],
    _coins: address[2],
    A: uint256,
    gamma: uint256,
    mid_fee: uint256,
    out_fee: uint256,
    allowed_extra_profit: uint256,
    fee_gamma: uint256,
    adjustment_step: uint256,
    admin_fee: uint256,
    ma_half_time: uint256,
    initial_price: uint256
) -> address:
    """
    @notice Deploy a new pool
    @param _name Name of the new plain pool
    @param _symbol Symbol for the new plain pool - will be concatenated with factory symbol
    Other parameters need some description
    @return Address of the deployed pool
    """
    # Validate parameters
    assert A > MIN_A-1
    assert A < MAX_A+1
    assert gamma > MIN_GAMMA-1
    assert gamma < MAX_GAMMA+1
    assert mid_fee > MIN_FEE-1
    assert mid_fee < MAX_FEE-1
    assert out_fee >= mid_fee
    assert out_fee < MAX_FEE-1
    assert admin_fee < 10**18+1
    assert allowed_extra_profit < 10**16+1
    assert fee_gamma < 10**18+1
    assert fee_gamma > 0
    assert adjustment_step < 10**18+1
    assert adjustment_step > 0
    assert ma_half_time < 7 * 86400
    assert ma_half_time > 0
    assert initial_price > 10**6
    assert initial_price < 10**30
    assert _coins[0] != _coins[1], "Duplicate coins"

    decimals: uint256[2] = empty(uint256[2])
    for i in range(2):
        d: uint256 = ERC20(_coins[i]).decimals()
        assert d < 19, "Max 18 decimals for coins"
        decimals[i] = d
    precisions: uint256 = (18 - decimals[0]) + shift(18 - decimals[1], 8)


    name: String[64] = concat("Curve.fi Factory Crypto Pool: ", _name)
    symbol: String[32] = concat(_symbol, "-f")

    token: address = create_forwarder_to(self.token_implementation)
    pool: address = create_forwarder_to(self.pool_implementation)

    Token(token).initialize(name, symbol, pool)
    CryptoPool(pool).initialize(
        A, gamma, mid_fee, out_fee, allowed_extra_profit, fee_gamma,
        adjustment_step, admin_fee, ma_half_time, initial_price,
        token, _coins, precisions)

    length: uint256 = self.pool_count
    self.pool_list[length] = pool
    self.pool_count = length + 1
    self.pool_data[pool].token = token
    self.pool_data[pool].decimals = shift(decimals[0], 8) + decimals[1]
    self.pool_data[pool].coins = _coins

    key: uint256 = bitwise_xor(convert(_coins[0], uint256), convert(_coins[1], uint256))
    length = self.market_counts[key]
    self.markets[key][length] = pool
    self.market_counts[key] = length + 1

    log CryptoPoolDeployed(
        token, _coins,
        A, gamma, mid_fee, out_fee, allowed_extra_profit, fee_gamma,
        adjustment_step, admin_fee, ma_half_time, initial_price,
        msg.sender)
    return pool

event LiquidityGaugeDeployed:
    pool: address
    token: address
    gauge: address

@external
def deploy_gauge(_pool: address) -> address:
    """
    @notice Deploy a liquidity gauge for a factory pool
    @param _pool Factory pool address to deploy a gauge for
    @return Address of the deployed gauge
    """
    assert self.pool_data[_pool].coins[0] != ZERO_ADDRESS, "Unknown pool"
    assert self.pool_data[_pool].liquidity_gauge == ZERO_ADDRESS, "Gauge already deployed"

    gauge: address = create_forwarder_to(self.gauge_implementation)
    token: address = self.pool_data[_pool].token
    LiquidityGauge(gauge).initialize(token)
    self.pool_data[_pool].liquidity_gauge = gauge

    log LiquidityGaugeDeployed(_pool, token, gauge)
    return gauge