# Data Structure

## Clmm

### 1. Position

```rust
/// The Cetus clmmpool's position NFT.
struct Position has key, store {
    id: UID,
    pool: ID,
    index: u64,
    coin_type_a: TypeName,
    coin_type_b: TypeName,
    name: String,
    description: String,
    url: String,
    tick_lower_index: I32,
    tick_upper_index: I32,
    liquidity: u128,
}
```

### 2. Rewarder

```rust
struct Rewarder has copy, drop, store {
    reward_coin: TypeName,
    emissions_per_second: u128,
    growth_global: u128,
}
```

### 3. Pool

```rust
/// The clmmpool
struct Pool<phantom CoinTypeA, phantom CoinTypeB> has key, store {
    id: UID,

    coin_a: Balance<CoinTypeA>,
    coin_b: Balance<CoinTypeB>,

    /// The tick spacing
    tick_spacing: u32,

    /// The numerator of fee rate, the denominator is 1_000_000.
    fee_rate: u64,

    /// The liquidity of current tick index
    liquidity: u128,

    /// The current sqrt price
    current_sqrt_price: u128,

    /// The current tick index
    current_tick_index: I32,

    /// The global fee growth of coin a,b as Q64.64
    fee_growth_global_a: u128,
    fee_growth_global_b: u128,

    /// The amounts of coin a,b owend to protocol
    fee_protocol_coin_a: u64,
    fee_protocol_coin_b: u64,

    /// The tick manager
    tick_manager: TickManager,

    /// The rewarder manager
    rewarder_manager: RewarderManager,

    /// The position manager
    position_manager: PositionManager,

    /// is the pool pause
    is_pause: bool,

    /// The pool index
    index: u64,

    /// The url for pool and postion
    url: String,

}
```

### 4. AddLiquidityReceipt

```rust
/// Flash loan resource for add_liquidity
struct AddLiquidityReceipt<phantom CoinTypeA, phantom CoinTypeB> {
    pool_id: ID,
    amount_a: u64,
    amount_b: u64
}
```

## 5. FlashSwapReceipt

```rust
/// Flash loan resource for swap.
/// There is no way in Move to pass calldata and make dynamic calls, but a resource can be used for this purpose.
/// To make the execution into a single transaction, the flash loan function must return a resource
/// that cannot be copied, cannot be saved, cannot be dropped, or cloned.
struct FlashSwapReceipt<phantom CoinTypeA, phantom CoinTypeB> {
    pool_id: ID,
    a2b: bool,
    partner_id: ID,
    pay_amount: u64,
    ref_fee_amount: u64
}
```


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