// ===== dot/mod.rs =====

pub mod program;

// ===== dot/program.rs =====

#![allow(unused_imports)]
#![allow(unused_variables)]
#![allow(unused_mut)]
use crate::{id, seahorse_util::*};
use anchor_lang::{prelude::*, solana_program};
use anchor_spl::token::{self, Mint, Token, TokenAccount};
use std::{cell::RefCell, rc::Rc};

pub fn use_sol_usd_price_handler<'info>(mut price_account: UncheckedAccount<'info>) -> () {
    let mut price_feed = {
        if price_account.key()
            != Pubkey::new_from_array([
                254u8, 101u8, 15u8, 3u8, 103u8, 212u8, 167u8, 239u8, 152u8, 21u8, 165u8, 147u8,
                234u8, 21u8, 211u8, 101u8, 147u8, 240u8, 100u8, 58u8, 170u8, 240u8, 20u8, 155u8,
                176u8, 75u8, 230u8, 122u8, 184u8, 81u8, 222u8, 205u8,
            ])
        {
            panic!("Pyth PriceAccount validation failed: expected devnet-SOL/USD")
        }

        load_price_feed_from_account_info(&price_account).unwrap()
    };

    let mut price = price_feed.get_price_unchecked();
    let mut price = {
        let price = price;

        (price.price as f64) * 10f64.powf(price.expo as f64)
    };

    solana_program::msg!("{}", price);
}

// ===== lib.rs =====

#![allow(unused_imports)]
#![allow(unused_variables)]
#![allow(unused_mut)]

pub mod dot;

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

use dot::program::*;
use std::{cell::RefCell, rc::Rc};

declare_id!("EkY7qZD2RCr1LpUzADJkzbjGaWfbvGYB9eJe7DYCgGF8");

pub mod seahorse_util {
    use super::*;

    pub use pyth_sdk_solana::{load_price_feed_from_account_info, PriceFeed};
    use std::{
        collections::HashMap,
        fmt::Debug,
        ops::{Deref, Index, IndexMut},
    };

    pub struct Mutable<T>(Rc<RefCell<T>>);

    impl<T> Mutable<T> {
        pub fn new(obj: T) -> Self {
            Self(Rc::new(RefCell::new(obj)))
        }
    }

    impl<T> Clone for Mutable<T> {
        fn clone(&self) -> Self {
            Self(self.0.clone())
        }
    }

    impl<T> Deref for Mutable<T> {
        type Target = Rc<RefCell<T>>;

        fn deref(&self) -> &Self::Target {
            &self.0
        }
    }

    impl<T: Debug> Debug for Mutable<T> {
        fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
            write!(f, "{:?}", self.0)
        }
    }

    impl<T: Default> Default for Mutable<T> {
        fn default() -> Self {
            Self::new(T::default())
        }
    }

    pub trait IndexWrapped {
        type Output;

        fn index_wrapped(&self, index: i128) -> &Self::Output;
    }

    pub trait IndexWrappedMut: IndexWrapped {
        fn index_wrapped_mut(&mut self, index: i128) -> &mut <Self as IndexWrapped>::Output;
    }

    impl<T> IndexWrapped for Vec<T> {
        type Output = T;

        fn index_wrapped(&self, mut index: i128) -> &Self::Output {
            if index < 0 {
                index += self.len() as i128;
            }

            let index: usize = index.try_into().unwrap();

            self.index(index)
        }
    }

    impl<T> IndexWrappedMut for Vec<T> {
        fn index_wrapped_mut(&mut self, mut index: i128) -> &mut <Self as IndexWrapped>::Output {
            if index < 0 {
                index += self.len() as i128;
            }

            let index: usize = index.try_into().unwrap();

            self.index_mut(index)
        }
    }

    impl<T, const N: usize> IndexWrapped for [T; N] {
        type Output = T;

        fn index_wrapped(&self, mut index: i128) -> &Self::Output {
            if index < 0 {
                index += N as i128;
            }

            let index: usize = index.try_into().unwrap();

            self.index(index)
        }
    }

    impl<T, const N: usize> IndexWrappedMut for [T; N] {
        fn index_wrapped_mut(&mut self, mut index: i128) -> &mut <Self as IndexWrapped>::Output {
            if index < 0 {
                index += N as i128;
            }

            let index: usize = index.try_into().unwrap();

            self.index_mut(index)
        }
    }

    #[derive(Clone)]
    pub struct Empty<T: Clone> {
        pub account: T,
        pub bump: Option<u8>,
    }

    #[derive(Clone, Debug)]
    pub struct ProgramsMap<'info>(pub HashMap<&'static str, AccountInfo<'info>>);

    impl<'info> ProgramsMap<'info> {
        pub fn get(&self, name: &'static str) -> AccountInfo<'info> {
            self.0.get(name).unwrap().clone()
        }
    }

    #[derive(Clone, Debug)]
    pub struct WithPrograms<'info, 'entrypoint, A> {
        pub account: &'entrypoint A,
        pub programs: &'entrypoint ProgramsMap<'info>,
    }

    impl<'info, 'entrypoint, A> Deref for WithPrograms<'info, 'entrypoint, A> {
        type Target = A;

        fn deref(&self) -> &Self::Target {
            &self.account
        }
    }

    pub type SeahorseAccount<'info, 'entrypoint, A> =
        WithPrograms<'info, 'entrypoint, Box<Account<'info, A>>>;

    pub type SeahorseSigner<'info, 'entrypoint> = WithPrograms<'info, 'entrypoint, Signer<'info>>;

    #[derive(Clone, Debug)]
    pub struct CpiAccount<'info> {
        #[doc = "CHECK: CpiAccounts temporarily store AccountInfos."]
        pub account_info: AccountInfo<'info>,
        pub is_writable: bool,
        pub is_signer: bool,
        pub seeds: Option<Vec<Vec<u8>>>,
    }

    #[macro_export]
    macro_rules! seahorse_const {
        ($ name : ident , $ value : expr) => {
            macro_rules! $name {
                () => {
                    $value
                };
            }

            pub(crate) use $name;
        };
    }

    pub trait Loadable {
        type Loaded;

        fn load(stored: Self) -> Self::Loaded;

        fn store(loaded: Self::Loaded) -> Self;
    }

    macro_rules! Loaded {
        ($ name : ty) => {
            <$name as Loadable>::Loaded
        };
    }

    pub(crate) use Loaded;

    #[macro_export]
    macro_rules! assign {
        ($ lval : expr , $ rval : expr) => {{
            let temp = $rval;

            $lval = temp;
        }};
    }

    #[macro_export]
    macro_rules! index_assign {
        ($ lval : expr , $ idx : expr , $ rval : expr) => {
            let temp_rval = $rval;
            let temp_idx = $idx;

            $lval[temp_idx] = temp_rval;
        };
    }

    pub(crate) use assign;

    pub(crate) use index_assign;

    pub(crate) use seahorse_const;
}

#[program]
mod pyth {
    use super::*;
    use seahorse_util::*;
    use std::collections::HashMap;

    #[derive(Accounts)]
    pub struct UseSolUsdPrice<'info> {
        #[account()]
        #[doc = "CHECK: This account is unchecked."]
        pub price_account: UncheckedAccount<'info>,
    }

    pub fn use_sol_usd_price(ctx: Context<UseSolUsdPrice>) -> Result<()> {
        let mut programs = HashMap::new();
        let programs_map = ProgramsMap(programs);
        let price_account = &ctx.accounts.price_account.clone();

        use_sol_usd_price_handler(price_account.clone());

        return Ok(());
    }
}