A0-1238: Marketplace for auctioning tickets (#613)

* Prototype dummy marketplace

* Implement selling tickets

* Emit events from marketplace

* Add docs

* Deploy markets for all games

* Improve cosmetics

* Wrap original errors where possible

* Add max_price to buy()

Author: obrok

.gitignore

@@ -1,5 +1,5 @@
 # IDEs
-/.idea
+**/.idea
 /.vscode
 .projectile
 
@@ -14,7 +14,7 @@
 *.out
 
 # docker
-docker/data/
+**/docker/data/
 db/
 keystore/
 chainspec.json

contracts/button/lib.rs

@@ -10,7 +10,7 @@ mod button_game {
     use game_token::MINT_TO_SELECTOR;
     use ink_env::{
         call::{build_call, Call, ExecutionInput, Selector},
-        DefaultEnvironment, Error as InkEnvError,
+        CallFlags, DefaultEnvironment, Error as InkEnvError,
     };
     use ink_lang::{codegen::EmitEvent, reflect::ContractEventBase};
     use ink_prelude::{format, vec};
@@ -341,6 +341,7 @@ mod button_game {
                         .push_arg(value)
                         .push_arg(vec![0x0]),
                 )
+                .call_flags(CallFlags::default().set_allow_reentry(true))
                 .returns::<Result<(), PSP22Error>>()
                 .fire()
         }

contracts/game_token/lib.rs

@@ -1,7 +1,9 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 #![feature(min_specialization)]
 
-pub use crate::game_token::{BALANCE_OF_SELECTOR, MINT_TO_SELECTOR, TRANSFER_SELECTOR};
+pub use crate::game_token::{
+    BALANCE_OF_SELECTOR, MINT_TO_SELECTOR, TRANSFER_FROM_SELECTOR, TRANSFER_SELECTOR,
+};
 
 #[openbrush::contract]
 pub mod game_token {
@@ -20,6 +22,7 @@ pub mod game_token {
 
     pub const BALANCE_OF_SELECTOR: [u8; 4] = [0x65, 0x68, 0x38, 0x2f];
     pub const TRANSFER_SELECTOR: [u8; 4] = [0xdb, 0x20, 0xf9, 0xf5];
+    pub const TRANSFER_FROM_SELECTOR: [u8; 4] = [0x54, 0xb3, 0xc7, 0x6e];
     // TODO : use correct selector when mint/burn is implemented
     pub const MINT_TO_SELECTOR: [u8; 4] = [0x0, 0x0, 0x0, 0x0];