Rust CPI

# 每個程式選擇兩個 Raydium CPI crate 中的一個 — 參見下面的警告。
[dependencies]
anchor-lang     = "=1.0.2"   # 如果你的目標是 raydium-clmm，則為 =0.32.1
anchor-spl      = "=1.0.2"   # 同樣地
raydium-cp-swap = { git = "https://github.com/raydium-io/raydium-cp-swap", branch = "master", features = ["cpi"] }
# raydium-clmm  = { git = "https://github.com/raydium-io/raydium-clmm",    branch = "master", features = ["cpi"] }
# LaunchLab：程式源代碼不公開（參見 reference/program-addresses）。
# 沒有 git 依賴項可指向。改為從已發佈的 IDL 生成 CPI 綁定。
# 參見下面的「應用模式：LaunchLab」。
# AMM v4 沒有已發佈的 Anchor CPI crate；參見其自己的章節。

use anchor_lang::prelude::*;
use anchor_spl::token::{Token, TokenAccount, Mint};

#[derive(Accounts)]
pub struct MyProxySwap<'info> {
    #[account(mut)]
    pub user: Signer<'info>,

    /// CHECK: 由 CPMM 驗證
    #[account(mut)]
    pub pool_state: UncheckedAccount<'info>,

    /// CHECK: 同上
    pub amm_config: UncheckedAccount<'info>,

    /// CHECK: 同上
    pub pool_authority: UncheckedAccount<'info>,

    #[account(mut)]
    pub input_vault: Account<'info, TokenAccount>,
    #[account(mut)]
    pub output_vault: Account<'info, TokenAccount>,

    pub input_mint: Account<'info, Mint>,
    pub output_mint: Account<'info, Mint>,

    #[account(mut)]
    pub user_input_ata:  Account<'info, TokenAccount>,
    #[account(mut)]
    pub user_output_ata: Account<'info, TokenAccount>,

    /// 型別為 `Program<RaydiumCpSwap>` 而不是 `UncheckedAccount`：此帳戶
    /// 是被呼叫的程式，而不是 Raydium 擁有的資料，因此 Anchor 的 `Program<T>`
    /// 包裝程式會自動檢查其地址，而不是將該檢查留給被呼叫方。
    pub cpmm_program: Program<'info, raydium_cp_swap::program::RaydiumCpSwap>,
    pub token_program: Program<'info, Token>,
    /// CHECK: 觀察 PDA
    #[account(mut)]
    pub observation_state: UncheckedAccount<'info>,
}

use raydium_cp_swap::cpi::{self, accounts::Swap as CpmmSwap};

pub fn my_proxy_swap(
    ctx: Context<MyProxySwap>,
    amount_in: u64,
    minimum_amount_out: u64,
) -> Result<()> {
    let cpi_accounts = CpmmSwap {
        payer:                ctx.accounts.user.to_account_info(),
        authority:            ctx.accounts.user.to_account_info(),
        amm_config:           ctx.accounts.amm_config.to_account_info(),
        pool_state:           ctx.accounts.pool_state.to_account_info(),
        input_token_account:  ctx.accounts.user_input_ata.to_account_info(),
        output_token_account: ctx.accounts.user_output_ata.to_account_info(),
        input_vault:          ctx.accounts.input_vault.to_account_info(),
        output_vault:         ctx.accounts.output_vault.to_account_info(),
        input_token_program:  ctx.accounts.token_program.to_account_info(),
        output_token_program: ctx.accounts.token_program.to_account_info(),
        input_token_mint:     ctx.accounts.input_mint.to_account_info(),
        output_token_mint:    ctx.accounts.output_mint.to_account_info(),
        observation_state:    ctx.accounts.observation_state.to_account_info(),
    };
    // Anchor 1.0：第一個引數是程式的 Pubkey，而不是其 AccountInfo。
    let cpi_ctx = CpiContext::new(
        *ctx.accounts.cpmm_program.key,
        cpi_accounts,
    );

    cpi::swap_base_input(cpi_ctx, amount_in, minimum_amount_out)?;
    Ok(())
}

let bump         = ctx.accounts.my_authority_bump;
let signer_seeds: &[&[&[u8]]] = &[&[b"my_authority", &[bump]]];

let cpi_ctx = CpiContext::new_with_signer(
    *ctx.accounts.cpmm_program.key,
    cpi_accounts,
    signer_seeds,
);

cpi::swap_base_input(cpi_ctx, amount_in, minimum_amount_out)?;

let cpi_ctx = CpiContext::new(program_id, accounts)
    .with_remaining_accounts(ctx.remaining_accounts.to_vec());

use raydium_clmm::cpi::{self, accounts::SwapSingleV2 as ClmmSwap};

#[derive(Accounts)]
pub struct MyProxyClmmSwap<'info> {
    #[account(mut)]
    pub payer: Signer<'info>,

    /// CHECK: 由 CLMM 驗證
    pub amm_config: UncheckedAccount<'info>,
    /// CHECK: 同上
    #[account(mut)]
    pub pool_state: UncheckedAccount<'info>,

    #[account(mut)]
    pub input_token_account: Account<'info, TokenAccount>,
    #[account(mut)]
    pub output_token_account: Account<'info, TokenAccount>,
    #[account(mut)]
    pub input_vault: Account<'info, TokenAccount>,
    #[account(mut)]
    pub output_vault: Account<'info, TokenAccount>,

    /// CHECK: 觀察 PDA
    #[account(mut)]
    pub observation_state: UncheckedAccount<'info>,

    pub token_program: Program<'info, Token>,
    pub token_program_2022: Program<'info, anchor_spl::token_2022::Token2022>,
    /// CHECK: SPL memo 程式，某些 Token-2022 路徑需要
    pub memo_program: UncheckedAccount<'info>,

    pub input_vault_mint: Account<'info, Mint>,
    pub output_vault_mint: Account<'info, Mint>,

    /// 型別為 `Program<T>` 而不是 `UncheckedAccount`，原因與上面一般模式中 CPMM 的
    /// `cpmm_program` 相同：它是被呼叫的程式，`Program<T>` 自動檢查其地址。
    pub clmm_program: Program<'info, raydium_clmm::program::RaydiumClmm>,
    // remaining_accounts：tick_array_bitmap_extension（如果遊走需要它），然後
    // 是交換預期價格範圍跨越的盡可能多的 tick_array 帳戶。
}

use anchor_lang::prelude::*;
use anchor_spl::token::{Token, TokenAccount, Mint};
use raydium_launchpad::cpi::{self, accounts::BuyExactIn};

#[derive(Accounts)]
pub struct MyProxyBuy<'info> {
    #[account(mut)]
    pub payer: Signer<'info>,

    /// CHECK: PDA，種子 = [b"vault_auth_seed"]，由程式驗證
    pub authority: UncheckedAccount<'info>,

    /// CHECK: 由程式驗證
    pub global_config: UncheckedAccount<'info>,
    /// CHECK: 由程式驗證
    pub platform_config: UncheckedAccount<'info>,

    /// CHECK: 由程式驗證
    #[account(mut)]
    pub pool_state: UncheckedAccount<'info>,

    #[account(mut)]
    pub user_base_token: Account<'info, TokenAccount>,
    #[account(mut)]
    pub user_quote_token: Account<'info, TokenAccount>,
    #[account(mut)]
    pub base_vault: Account<'info, TokenAccount>,
    #[account(mut)]
    pub quote_vault: Account<'info, TokenAccount>,

    pub base_token_mint: Account<'info, Mint>,
    pub quote_token_mint: Account<'info, Mint>,

    /// CHECK: base mint 的 token 程式（SPL Token 或 Token-2022，取決於 mint）
    pub base_token_program: UncheckedAccount<'info>,
    /// 型別為 `Program<Token>` 而不是 `UncheckedAccount`：IDL 將其固定為
    /// 經典 SPL Token 特別是（與上面的 base_token_program 不同），因此 Anchor 的
    /// 內建 `Program<Token>` 地址檢查本身就足夠了。
    pub quote_token_program: Program<'info, Token>,

    /// CHECK: PDA，種子 = [b"__event_authority"]，程式的 emit_cpi! 模式需要
    pub event_authority: UncheckedAccount<'info>,
    /// CHECK: 程式自己的帳戶，與 event_authority 一起需要
    pub program: UncheckedAccount<'info>,
}

pub fn my_proxy_buy(
    ctx: Context<MyProxyBuy>,
    amount_in: u64,
    minimum_amount_out: u64,
    share_fee_rate: u64,
) -> Result<()> {
    let cpi_accounts = BuyExactIn {
        payer:               ctx.accounts.payer.to_account_info(),
        authority:           ctx.accounts.authority.to_account_info(),
        global_config:       ctx.accounts.global_config.to_account_info(),
        platform_config:     ctx.accounts.platform_config.to_account_info(),
        pool_state:          ctx.accounts.pool_state.to_account_info(),
        user_base_token:     ctx.accounts.user_base_token.to_account_info(),
        user_quote_token:    ctx.accounts.user_quote_token.to_account_info(),
        base_vault:          ctx.accounts.base_vault.to_account_info(),
        quote_vault:         ctx.accounts.quote_vault.to_account_info(),
        base_token_mint:     ctx.accounts.base_token_mint.to_account_info(),
        quote_token_mint:    ctx.accounts.quote_token_mint.to_account_info(),
        base_token_program:  ctx.accounts.base_token_program.to_account_info(),
        quote_token_program: ctx.accounts.quote_token_program.to_account_info(),
        event_authority:     ctx.accounts.event_authority.to_account_info(),
        program:             ctx.accounts.program.to_account_info(),
    };
    // `program` 在這裡兼作 CPI 目標：LaunchLab 自己的帳戶既是其指令的必需帳戶之一
    // （用於其 emit_cpi! 模式），也是 CpiContext::new 呼叫的程式。
    let cpi_ctx = CpiContext::new(
        *ctx.accounts.program.key,
        cpi_accounts,
    );

    cpi::buy_exact_in(cpi_ctx, amount_in, minimum_amount_out, share_fee_rate)?;
    Ok(())
}

use raydium_cp_swap::error::ErrorCode as CpmmErr;

match cpi::swap_base_input(cpi_ctx, amount_in, minimum_amount_out) {
    Ok(_) => Ok(()),
    Err(e) => {
        msg!("CPMM swap failed: {:?}", e);
        // 重新拋出，或轉換為你自己的錯誤型別。
        Err(e)
    }
}

use anchor_lang::prelude::*;
use anchor_lang::solana_program::program::invoke_signed;
use anchor_lang::solana_program::instruction::{Instruction, AccountMeta};

const AMM_V4_PROGRAM_ID: Pubkey = pubkey!("675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8");

// SwapBaseIn 判別器是 9。
let mut data = vec![9u8];
data.extend_from_slice(&amount_in.to_le_bytes());
data.extend_from_slice(&minimum_amount_out.to_le_bytes());

let ix = Instruction {
    program_id: AMM_V4_PROGRAM_ID,
    accounts: vec![
        AccountMeta::new_readonly(token_program_id, false),
        AccountMeta::new(amm_id, false),
        AccountMeta::new_readonly(amm_authority, false),
        // ... 根據 products/amm-v4/instructions 的剩餘帳戶 ...
    ],
    data,
};
invoke_signed(&ix, &account_infos, signer_seeds)?;

[test]
# 預設值（5 秒）一旦你複製多個帳戶就不夠了，因為每個都是
# 驗證器啟動期間的順序主網 RPC 往返。
startup_wait = 60000

[test.validator]
url = "https://api.mainnet-beta.solana.com"

[[test.validator.clone]]
address = "CAMMCzo5YL8w4VFF8KVHrK22GGUsp5VTaW7grrKgrWqK"  # CLMM

[[test.validator.clone]]
address = "CPMMoo8L3F4NbTegBCKVNunggL7H1ZpdTHKxQB5qKP1C"  # CPMM

[[test.validator.clone]]
address = "LanMV9sAd7wArD4vJFi2qDdfnVhFxYSUg6eADduJ3uj"   # LaunchLab

[[test.validator.clone]]
address = "FarmqiPv5eAj3j1GMdMCMUGXqPUvmquZtMy86QH6rzhG"  # Farm v6