This is PR for initial implementation of the NFT marketplace contract with the following features:

• factory - creates a new instance of Shiden34 contract and registers the instance to the Marketplace. Caller needs to provide link to IPFS metadata file for NFT and some NFT details. Prerequisite for the factory is that Shiden34 contract is deployed to a network and the contract hash is provided to the Marketplace via set_nft_contract_hash call.
• register - registers an existing contract to the Marketplace. This operation can be performed by contract or marketplace owner.
• list - Lists a NFT for sale on the marketplace. This operation can be performed by a token owner.
• unlist - Un-lists a NFT from the marketplace. This operation can be performed by a token owner.
• buy - Transfers a token ownership to the caller. Also pays royalties and marketplace fees predefined receivers.

The exported data told me there is no event emitted for the whole marketplace.

The minimum I have out of my head

    /// should be also emitted for unlist
    #[ink(event)]
    pub struct TokenListed {
        #[ink(topic)]
        contract: AccountId,
        #[ink(topic)]
        id: Id,
        #[ink(topic)]
        price: Option<Balance>,
    }
    
    /// price 'cause user can send more
    #[ink(event)]
    pub struct TokenBought {
        #[ink(topic)]
        contract: AccountId,
        #[ink(topic)]
        id: Id,
        #[ink(topic)]
        price: Balance,
    }
    
    /// can be also emitted for factory
     #[ink(event)]
     pub struct CollectionRegistered {
        #[ink(topic)]
        contract: AccountId,
        metadada: Bytes
    }

export type Event = never

export type Message = Message_MarketplaceSale_unlist | Message_MarketplaceSale_register | Message_MarketplaceSale_buy | Message_MarketplaceSale_set_marketplace_fee | Message_MarketplaceSale_set_fee_recipient | Message_MarketplaceSale_get_price | Message_MarketplaceSale_list | Message_MarketplaceSale_factory | Message_MarketplaceSale_get_max_fee | Message_MarketplaceSale_get_registered_collection | Message_MarketplaceSale_get_marketplace_fee | Message_MarketplaceSale_set_nft_contract_hash | Message_MarketplaceSale_get_fee_recipient | Message_MarketplaceSale_set_contract_metadata | Message_MarketplaceSale_nft_contract_hash

I was trying to build the project #5

but seems like some dependency is missing

2023-01-22T19:20:30.472966Z  INFO cargo_contract::util: Invoking cargo: "/Users/vikival/.rustup/toolchains/nightly-2022-08-15-aarch64-apple-darwin/bin/cargo" "build" "--target=wasm32-unknown-unknown" "-Zbuild-std" "--no-default-features" "--release" "--target-dir=/Users/vikival/Documents/Work/KodaDot/marketplace/target/ink/marketplace" "--features=ink_env/ink-debug"
    Updating crates.io index
    Updating git repository `https://github.com/Supercolony-net/openbrush-contracts`
    Updating git repository `https://github.com/Supercolony-net/pallet-assets-chain-extension`
    Updating git repository `https://github.com/swanky-dapps/nft`
error: no matching package named `pallet_payable_mint` found
location searched: https://github.com/swanky-dapps/nft
required by package `shiden34 v0.2.0 (/private/var/folders/tw/g2bzmzdn51q9v0z03y3nb9fr0000gn/T/cargo-contract_YmbDpK/contracts/shiden34)`
    ... which satisfies path dependency `shiden34` of package `pallet_marketplace v0.2.0 (/private/var/folders/tw/g2bzmzdn51q9v0z03y3nb9fr0000gn/T/cargo-contract_YmbDpK/logics)`
    ... which satisfies path dependency `pallet_marketplace` of package `marketplace v0.2.0 (/private/var/folders/tw/g2bzmzdn51q9v0z03y3nb9fr0000gn/T/cargo-contract_YmbDpK/contracts/marketplace)`
ERROR: `"/Users/vikival/.rustup/toolchains/nightly-2022-08-15-aarch64-apple-darwin/bin/cargo" "build" "--target=wasm32-unknown-unknown" "-Zbuild-std" "--no-default-features" "--release" "--target-dir=~/marketplace/target/ink/marketplace" "--features=ink_env/ink-debug"` failed with exit code: Some(101)

I have problems with calling factory function on the marketplace contract.

I though first time that I did not set contract hash but the error is still there.

Built with latest main at hash 0xedf9dde8b7c52a23ef3972268217a92f3c356707388aaa68a3952e31973797c3

Failed Txs https://shibuya.subscan.io/account/Z7rYZFFCFt9B2cv692TSWnxTKM1CYnoukBhxUd39ajsYWTe

Example of call:

The supplied hash of RMRK smart contract

0xd22f1aabf3d04bfba1ef5d0b5a5e1fa4764df7224afd1ee1422a8344a54b490f