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use alloc::{string::ToString, vec};
use casper_contract::contract_api::storage;
use casper_types::{
    contracts::{NamedKeys, Parameters},
    EntryPoint, EntryPoints, Group, Parameter, PublicKey,
};

pub const RUNTIME_ARG_PRODUCER_ACCOUNT_HASH: &str = "producer-account";
pub const NAMED_KEY_DICT_APPROVED_NAME: &str = "approved";
pub const NAMED_KEY_DICT_HOLDERS_NAME: &str = "holders";
pub const NAMED_KEY_DICT_OWNERS_NAME: &str = "owners";
pub const NAMED_KEY_DICT_PUBAPPROVED_NAME: &str = "publishers_approved";
pub const NAMED_KEY_DICT_PRODAPPROVED_NAME: &str = "producers_approved";
pub const NAMED_KEY_DICT_METADATAS_NAME: &str = "metadatas";
pub const NAMED_KEY_DICT_TOKEN_ID_BY_HASH_NAME: &str = "token_id_by_hash";
pub const NAMED_KEY_TOKENSCNT: &str = "tokens_cnt";
pub const NAMED_KEY_HOLDERSCNT: &str = "holders_cnt";
pub const NAMED_KEY_APPROVED_CNT: &str = "approved_cnt";
pub const NAMED_KEY_REQ_CNT: &str = "request_cnt";
pub const NAMED_KEY_DICT_REQ_OBJ: &str = "request_objects";
pub const NAMED_KEY_DICT_PROD_REQS: &str = "producer_requests";
pub const NAMED_KEY_DICT_PUB_REQS: &str = "publiser_requests";
pub const NAMED_KEY_DICT_TOTAL_SUPPLY: &str = "total_supply";
pub const NAMED_KEY_RATIO_VERIFIER: &str = "ratio_verifier";
pub const RUNTIME_ARG_METADATA: &str = "metadata";
pub const RUNTIME_ARG_AMOUNT: &str = "amount";
pub const RUNTIME_ARG_RECIPIENT: &str = "recipient";
pub const RUNTIME_ARG_HOLDER_ID: &str = "holder_id";
pub const RUNTIME_ARG_SPENDER: &str = "publisher-account";
pub const RUNTIME_ARG_APPROVED_ID: &str = "approved_id";
pub const RUNTIME_ARG_COMISSION: &str = "comission";
pub const RUNTIME_ARG_REQUEST_ID: &str = "request_id";
pub const RUNTIME_ARG_CURRENT_PRICE_TIMESTAMP: &str = "current_price_timestamp";
pub const RUNTIME_ARG_SIGNATURE: &str = "signature";
pub const RUNTIME_ARG_PURSE_ADDR: &str = "purse_addr";
pub const RUNTIME_ARG_PRICE: &str = "price";
pub const RUNTIME_ARG_SHIPPING_PRICE: &str = "shipping_price";
pub const RUNTIME_ARG_TAX_PRICE: &str = "tax_price";
pub const RUNTIME_PRODUCT_PRICE: &str = "product_price";
pub const RUNTIME_FEE: &str = "fee";
pub const CONTRACTPACKAGEHASH: &str = "droplinked_package_hash";

/// Returns all the entrypoints that the contract has
/// 
/// # Entrypoints : 
/// 1. mint 
///     Gets : `metadata` : `String` , `amount` : `u64`, `recipient` : `Key`, `price` : `u64` , `comission` : `u8`
///     Returns : `holder_id` : `u64` 
/// 2. approve
/// 3. disapprove
/// 4. buy
/// 5. init
/// 6. publish_request
/// 7. cancel_request
/// 8. direct_pay
pub fn get_entrypoints() -> EntryPoints {
    let mut result = EntryPoints::new();
    let mint_parameters: Parameters = vec![
        Parameter::new(
            RUNTIME_ARG_METADATA.to_string(),
            casper_types::CLType::String,
        ),
        Parameter::new(RUNTIME_ARG_AMOUNT.to_string(), casper_types::CLType::U64),
        Parameter::new(RUNTIME_ARG_RECIPIENT.to_string(), casper_types::CLType::Key),
        Parameter::new(RUNTIME_ARG_PRICE.to_string(), casper_types::CLType::U64),
        Parameter::new(RUNTIME_ARG_COMISSION.to_string(), casper_types::CLType::U8),
    ];
    let approve_parameters: Parameters = vec![Parameter::new(
        RUNTIME_ARG_REQUEST_ID,
        casper_types::CLType::U64,
    )];
    let disapprove_paramters: Parameters = vec![
        Parameter::new(RUNTIME_ARG_AMOUNT, casper_types::CLType::U64),
        Parameter::new(RUNTIME_ARG_APPROVED_ID, casper_types::CLType::U64),
        Parameter::new(RUNTIME_ARG_SPENDER, casper_types::CLType::Key),
    ];
    let buy_parameters: Parameters = vec![
        Parameter::new(RUNTIME_ARG_AMOUNT, casper_types::CLType::U64),
        Parameter::new(RUNTIME_ARG_PURSE_ADDR, casper_types::CLType::Key),
        Parameter::new(RUNTIME_ARG_APPROVED_ID, casper_types::CLType::U64),
        Parameter::new(
            RUNTIME_ARG_CURRENT_PRICE_TIMESTAMP,
            casper_types::CLType::String,
        ),
        Parameter::new(RUNTIME_ARG_SIGNATURE, casper_types::CLType::String),
        Parameter::new(RUNTIME_ARG_SHIPPING_PRICE, casper_types::CLType::U512),
        Parameter::new(RUNTIME_ARG_TAX_PRICE, casper_types::CLType::U512),
    ];

    let publish_request_parameters: Parameters = vec![
        Parameter::new(RUNTIME_ARG_PRODUCER_ACCOUNT_HASH, casper_types::CLType::Key),
        Parameter::new(RUNTIME_ARG_AMOUNT, casper_types::CLType::U64),
        Parameter::new(RUNTIME_ARG_HOLDER_ID, casper_types::CLType::U64),
    ];
    let cancel_request_parameters: Parameters = vec![Parameter::new(
        RUNTIME_ARG_REQUEST_ID,
        casper_types::CLType::U64,
    )];

    let direct_pay_parameters: Parameters = vec![
        Parameter::new(RUNTIME_PRODUCT_PRICE, casper_types::CLType::U512),
        Parameter::new(RUNTIME_ARG_SHIPPING_PRICE, casper_types::CLType::U512),
        Parameter::new(RUNTIME_ARG_TAX_PRICE, casper_types::CLType::U512),
        Parameter::new(RUNTIME_ARG_RECIPIENT, casper_types::CLType::String),
        Parameter::new(RUNTIME_ARG_PURSE_ADDR, casper_types::CLType::Key),
    ];

    let entry_point_mint = EntryPoint::new(
        "mint",
        mint_parameters,
        casper_types::CLType::U64,
        casper_types::EntryPointAccess::Public,
        casper_types::EntryPointType::Contract,
    );
    let entry_point_approve = EntryPoint::new(
        "approve",
        approve_parameters,
        casper_types::CLType::U64,
        casper_types::EntryPointAccess::Public,
        casper_types::EntryPointType::Contract,
    );
    let entry_point_disapprove = EntryPoint::new(
        "disapprove",
        disapprove_paramters,
        casper_types::CLType::Unit,
        casper_types::EntryPointAccess::Public,
        casper_types::EntryPointType::Contract,
    );
    let entry_point_buy = EntryPoint::new(
        "buy",
        buy_parameters,
        casper_types::CLType::Unit,
        casper_types::EntryPointAccess::Public,
        casper_types::EntryPointType::Contract,
    );

    let entry_point_init = EntryPoint::new(
        "init",
        Parameters::new(),
        casper_types::CLType::Unit,
        casper_types::EntryPointAccess::Groups(vec![Group::new("constructor")]),
        casper_types::EntryPointType::Contract,
    );
    let entry_point_publish_request = EntryPoint::new(
        "publish_request",
        publish_request_parameters,
        casper_types::CLType::U64,
        casper_types::EntryPointAccess::Public,
        casper_types::EntryPointType::Contract,
    );
    let entry_point_cancel_request = EntryPoint::new(
        "cancel_request",
        cancel_request_parameters,
        casper_types::CLType::Unit,
        casper_types::EntryPointAccess::Public,
        casper_types::EntryPointType::Contract,
    );
    let entry_point_direct_pay = EntryPoint::new(
        "direct_pay",
        direct_pay_parameters,
        casper_types::CLType::Unit,
        casper_types::EntryPointAccess::Public,
        casper_types::EntryPointType::Contract,
    );

    result.add_entry_point(entry_point_mint);
    result.add_entry_point(entry_point_approve);
    result.add_entry_point(entry_point_disapprove);
    result.add_entry_point(entry_point_buy);
    result.add_entry_point(entry_point_init);
    result.add_entry_point(entry_point_publish_request);
    result.add_entry_point(entry_point_cancel_request);
    result.add_entry_point(entry_point_direct_pay);
    result
}

/// Gets the namedkeys of the contract and returns them as a BTreeMap<String,Key>
/// 
/// It contains NamedKeys for : `NAMED_KEY_APPROVED_CNT`, `NAMED_KEY_HOLDERSCNT`, `NAMED_KEY_TOKENSCNT`, `NAMED_KEY_REQ_CNT`, `NAMED_KEY_RATIO_VERIFIER`, `RUNTIME_FEE` 
pub fn get_named_keys(
    ratio_verifier: PublicKey,
    fee: u64,
) -> alloc::collections::BTreeMap<alloc::string::String, casper_types::Key> {
    let mut named_keys: NamedKeys = NamedKeys::new();
    named_keys.insert(
        NAMED_KEY_APPROVED_CNT.to_string(),
        storage::new_uref(0u64).into(),
    );
    named_keys.insert(
        NAMED_KEY_HOLDERSCNT.to_string(),
        storage::new_uref(0u64).into(),
    );
    named_keys.insert(
        NAMED_KEY_TOKENSCNT.to_string(),
        storage::new_uref(0u64).into(),
    );
    named_keys.insert(
        NAMED_KEY_REQ_CNT.to_string(),
        storage::new_uref(0u64).into(),
    );
    named_keys.insert(
        NAMED_KEY_RATIO_VERIFIER.to_string(),
        storage::new_uref(ratio_verifier).into(),
    );
    named_keys.insert(RUNTIME_FEE.to_string(), storage::new_uref(fee).into());

    named_keys
}