chore: modify follow contract, update tests

src/base/constants/types.cairo

@@ -7,13 +7,17 @@ use starknet::ContractAddress;
 // /**
 // * @notice A struct containing token follow-related data.
 // *
-// * @param follower_profile_address The ID of the profile using the token to follow.
+// * @param followed_profile_address The ID of the profile being followed.
+// * @param follower_profile_address The ID of the profile following.
 // * @param followTimestamp The timestamp of the current follow, if a profile is using the token to follow.
+// * @param block_status true if follower is blocked, false otherwise
 // */
 #[derive(Drop, Serde, starknet::Store)]
 pub struct FollowData {
+    followed_profile_address: ContractAddress,
     follower_profile_address: ContractAddress,
-    follow_timestamp: u64
+    follow_timestamp: u64,
+    block_status: bool,
 }
 
 // * @notice A struct containing profile data.

src/follownft/follownft.cairo

@@ -1,3 +1,36 @@
+// *************************************************************************
+//                            OZ ERC721
+// *************************************************************************
+use openzeppelin::{
+    token::erc721::{ERC721Component::{ERC721Metadata, ERC721Mixin, HasComponent}},
+    introspection::src5::SRC5Component,
+};
+
+
+#[starknet::interface]
+trait IERC721Metadata<TState> {
+    fn name(self: @TState) -> ByteArray;
+    fn symbol(self: @TState) -> ByteArray;
+}
+
+#[starknet::embeddable]
+impl IERC721MetadataImpl<
+    TContractState,
+    +HasComponent<TContractState>,
+    +SRC5Component::HasComponent<TContractState>,
+    +Drop<TContractState>
+> of IERC721Metadata<TContractState> {
+    fn name(self: @TContractState) -> ByteArray {
+        let component = HasComponent::get_component(self);
+        ERC721Metadata::name(component)
+    }
+
+    fn symbol(self: @TContractState) -> ByteArray {
+        let component = HasComponent::get_component(self);
+        ERC721Metadata::symbol(component)
+    }
+}
+
 #[starknet::contract]
 mod Follow {
     // *************************************************************************
@@ -12,16 +45,49 @@ mod Follow {
         utils::hubrestricted::HubRestricted::hub_only, token_uris::follow_token_uri::FollowTokenUri,
     };
 
+    use openzeppelin::{
+        account, access::ownable::OwnableComponent,
+        token::erc721::{
+            ERC721Component, erc721::ERC721Component::InternalTrait as ERC721InternalTrait
+        },
+        introspection::{src5::SRC5Component}
+    };
+
+    component!(path: OwnableComponent, storage: ownable, event: OwnableEvent);
+    component!(path: SRC5Component, storage: src5, event: SRC5Event);
+    component!(path: ERC721Component, storage: erc721, event: ERC721Event);
+
+    // allow to check what interface is supported
+    #[abi(embed_v0)]
+    impl SRC5Impl = SRC5Component::SRC5Impl<ContractState>;
+    impl SRC5InternalImpl = SRC5Component::InternalImpl<ContractState>;
+
+    #[abi(embed_v0)]
+    impl ERC721Impl = ERC721Component::ERC721Impl<ContractState>;
+    #[abi(embed_v0)]
+    impl ERC721CamelOnlyImpl = ERC721Component::ERC721CamelOnlyImpl<ContractState>;
+
+    // add an owner
+    #[abi(embed_v0)]
+    impl OwnableImpl = OwnableComponent::OwnableImpl<ContractState>;
+    impl OwnableInternalImpl = OwnableComponent::InternalImpl<ContractState>;
+
     // *************************************************************************
     //                            STORAGE
     // *************************************************************************
     #[storage]
     struct Storage {
+        #[substorage(v0)]
+        erc721: ERC721Component::Storage,
+        #[substorage(v0)]
+        src5: SRC5Component::Storage,
+        #[substorage(v0)]
+        ownable: OwnableComponent::Storage,
+        admin: ContractAddress,
         followed_profile_address: ContractAddress,
         follower_count: u256,
         follow_id_by_follower_profile_address: LegacyMap<ContractAddress, u256>,
         follow_data_by_follow_id: LegacyMap<u256, FollowData>,
-        initialized: bool,
         karst_hub: ContractAddress,
     }
 
@@ -31,9 +97,16 @@ mod Follow {
     #[event]
     #[derive(Drop, starknet::Event)]
     enum Event {
+        #[flat]
+        ERC721Event: ERC721Component::Event,
+        #[flat]
+        SRC5Event: SRC5Component::Event,
+        #[flat]
+        OwnableEvent: OwnableComponent::Event,
         Followed: Followed,
         Unfollowed: Unfollowed,
         FollowerBlocked: FollowerBlocked,
+        FollowerUnblocked: FollowerUnblocked
     }
 
     #[derive(Drop, starknet::Event)]
@@ -60,27 +133,35 @@ mod Follow {
         timestamp: u64,
     }
 
+    #[derive(Drop, starknet::Event)]
+    struct FollowerUnblocked {
+        followed_address: ContractAddress,
+        unblocked_follower: ContractAddress,
+        follow_id: u256,
+        timestamp: u64,
+    }
+
     // *************************************************************************
     //                            CONSTRUCTOR
     // *************************************************************************
     #[constructor]
-    fn constructor(ref self: ContractState, hub: ContractAddress) {
+    fn constructor(
+        ref self: ContractState,
+        hub: ContractAddress,
+        profile_address: ContractAddress,
+        admin: ContractAddress
+    ) {
+        self.admin.write(admin);
+        self.erc721.initializer("KARST:FOLLOWER", "KFL", "");
         self.karst_hub.write(hub);
+        self.followed_profile_address.write(profile_address);
     }
 
     // *************************************************************************
     //                            EXTERNAL FUNCTIONS
     // *************************************************************************
     #[abi(embed_v0)]
     impl FollowImpl of IFollowNFT<ContractState> {
-        /// @notice initialize follow contract
-        /// @param profile_address address of profile to initialize contract for
-        fn initialize(ref self: ContractState, profile_address: ContractAddress) {
-            assert(!self.initialized.read(), Errors::INITIALIZED);
-            self.initialized.write(true);
-            self.followed_profile_address.write(profile_address);
-        }
-
         /// @notice performs the follow action
         /// @param follower_profile_address address of the user trying to perform the follow action
         fn follow(ref self: ContractState, follower_profile_address: ContractAddress) -> u256 {
@@ -103,7 +184,7 @@ mod Follow {
             self._unfollow(unfollower_profile_address, follow_id);
         }
 
-        /// @notice performs the block action
+        /// @notice performs the blocking action
         /// @param follower_profile_address address of the user to be blocked
         fn process_block(
             ref self: ContractState, follower_profile_address: ContractAddress
@@ -113,7 +194,18 @@ mod Follow {
                 .follow_id_by_follower_profile_address
                 .read(follower_profile_address);
             assert(follow_id.is_non_zero(), Errors::NOT_FOLLOWING);
-            self._unfollow(follower_profile_address, follow_id);
+            let follow_data = self.follow_data_by_follow_id.read(follow_id);
+            self
+                .follow_data_by_follow_id
+                .write(
+                    follow_id,
+                    FollowData {
+                        followed_profile_address: follow_data.followed_profile_address,
+                        follower_profile_address: follow_data.follower_profile_address,
+                        follow_timestamp: follow_data.follow_timestamp,
+                        block_status: true,
+                    }
+                );
             self
                 .emit(
                     FollowerBlocked {
@@ -126,6 +218,40 @@ mod Follow {
             return true;
         }
 
+        /// @notice performs the unblocking action
+        /// @param follower_profile_address address of the user to be blocked
+        fn process_unblock(
+            ref self: ContractState, follower_profile_address: ContractAddress
+        ) -> bool {
+            hub_only(self.karst_hub.read());
+            let follow_id = self
+                .follow_id_by_follower_profile_address
+                .read(follower_profile_address);
+            assert(follow_id.is_non_zero(), Errors::NOT_FOLLOWING);
+            let follow_data = self.follow_data_by_follow_id.read(follow_id);
+            self
+                .follow_data_by_follow_id
+                .write(
+                    follow_id,
+                    FollowData {
+                        followed_profile_address: follow_data.followed_profile_address,
+                        follower_profile_address: follow_data.follower_profile_address,
+                        follow_timestamp: follow_data.follow_timestamp,
+                        block_status: false,
+                    }
+                );
+            self
+                .emit(
+                    FollowerUnblocked {
+                        followed_address: self.followed_profile_address.read(),
+                        unblocked_follower: follower_profile_address,
+                        follow_id: follow_id,
+                        timestamp: get_block_timestamp()
+                    }
+                );
+            return true;
+        }
+
         // *************************************************************************
         //                            GETTERS
         // *************************************************************************
@@ -170,12 +296,18 @@ mod Follow {
         // *************************************************************************
         //                            METADATA
         // *************************************************************************
+        /// @notice returns the collection name
         fn name(self: @ContractState) -> ByteArray {
             return "KARST:FOLLOWER";
         }
+
+        /// @notice returns the collection symbol
         fn symbol(self: @ContractState) -> ByteArray {
             return "KFL";
         }
+
+        /// @notice returns the token URI of a particular follow NFT
+        /// @param follow_id ID of NFT to be queried
         fn token_uri(self: @ContractState, follow_id: u256) -> ByteArray {
             let follow_data = self.follow_data_by_follow_id.read(follow_id);
             let timestamp = follow_data.follow_timestamp;
@@ -195,8 +327,10 @@ mod Follow {
             let new_follower_id = self.follower_count.read() + 1;
             let follow_timestamp: u64 = get_block_timestamp();
             let follow_data = FollowData {
+                followed_profile_address: self.followed_profile_address.read(),
                 follower_profile_address: follower_profile_address,
-                follow_timestamp: follow_timestamp
+                follow_timestamp: follow_timestamp,
+                block_status: false,
             };
 
             self
@@ -226,7 +360,10 @@ mod Follow {
                 .write(
                     follow_id,
                     FollowData {
-                        follower_profile_address: 0.try_into().unwrap(), follow_timestamp: 0
+                        followed_profile_address: 0.try_into().unwrap(),
+                        follower_profile_address: 0.try_into().unwrap(),
+                        follow_timestamp: 0,
+                        block_status: false,
                     }
                 );
             self.follower_count.write(self.follower_count.read() - 1);

src/interfaces/IFollowNFT.cairo

@@ -9,10 +9,10 @@ pub trait IFollowNFT<TState> {
     // *************************************************************************
     //                              EXTERNALS
     // *************************************************************************
-    fn initialize(ref self: TState, profile_address: ContractAddress);
     fn follow(ref self: TState, follower_profile_address: ContractAddress) -> u256;
     fn unfollow(ref self: TState, unfollower_profile_address: ContractAddress);
     fn process_block(ref self: TState, follower_profile_address: ContractAddress) -> bool;
+    fn process_unblock(ref self: TState, follower_profile_address: ContractAddress) -> bool;
     // *************************************************************************
     //                            GETTERS
     // *************************************************************************

src/interfaces/IHandle.cairo

@@ -19,5 +19,10 @@ pub trait IHandle<TState> {
     fn exists(self: @TState, token_id: u256) -> bool;
     fn total_supply(self: @TState) -> u256;
     fn get_token_id(self: @TState, local_name: felt252) -> u256;
-    fn get_handle_token_uri(self: @TState, token_id: u256, local_name: felt252) -> ByteArray;
+    // *************************************************************************
+    //                              METADATA 
+    // *************************************************************************
+    fn name(self: @TState) -> ByteArray;
+    fn symbol(self: @TState) -> ByteArray;
+    fn token_uri(self: @TState, token_id: u256, local_name: felt252) -> ByteArray;
 }

src/interfaces/IHub.cairo

@@ -52,7 +52,31 @@ pub trait IHub<TState> {
     fn get_publication_content_uri(
         self: @TState, profile_address: ContractAddress, pub_id: u256
     ) -> ByteArray;
-// *************************************************************************
-//                            PROFILE INTERACTIONS
-// *************************************************************************
+
+    // *************************************************************************
+    //                            FOLLOW INTERACTIONS
+    // *************************************************************************
+    fn follow(
+        ref self: TState, follower_profile_address: u256, address_of_profiles_to_follow: Array<u256>
+    );
+
+    fn unfollow(ref self: TState, address_of_profiles_to_unfollow: Array<u256>);
+
+    fn set_block_status(
+        ref self: TState,
+        blocker_profile_address: ContractAddress,
+        address_of_profiles_to_block: Array<u256>,
+        block_status: bool
+    );
+
+    fn is_following(
+        self: @TState, followed_profile_address: ContractAddress, follower_address: ContractAddress
+    ) -> bool;
+
+    // *************************************************************************
+    //                            HANDLES
+    // *************************************************************************
+    fn get_handle_id(self: @TState, profile_address: ContractAddress) -> u256;
+
+    fn get_handle(self: @TState, handle_id: u256) -> ByteArray;
 }

src/namespaces/handle_registry.cairo

@@ -10,15 +10,14 @@ mod HandleRegistry {
     };
     use karst::interfaces::IHandleRegistry::IHandleRegistry;
     use karst::interfaces::IERC721::{IERC721Dispatcher, IERC721DispatcherTrait};
-    use karst::base::{utils::hubrestricted::HubRestricted::hub_only, constants::errors::Errors};
+    use karst::base::{constants::errors::Errors};
     use karst::interfaces::IHandle::{IHandleDispatcher, IHandleDispatcherTrait};
 
     // *************************************************************************
     //                            STORAGE
     // *************************************************************************
     #[storage]
     struct Storage {
-        karst_hub: ContractAddress,
         handle_address: ContractAddress,
         handle_to_profile_address: LegacyMap::<u256, ContractAddress>,
         profile_address_to_handle: LegacyMap::<ContractAddress, u256>,
@@ -54,10 +53,7 @@ mod HandleRegistry {
     //                            CONSTRUCTOR
     // *************************************************************************
     #[constructor]
-    fn constructor(
-        ref self: ContractState, hub_address: ContractAddress, handle_address: ContractAddress
-    ) {
-        self.karst_hub.write(hub_address);
+    fn constructor(ref self: ContractState, handle_address: ContractAddress) {
         self.handle_address.write(handle_address);
     }
 
@@ -70,7 +66,6 @@ mod HandleRegistry {
         /// @param handle_id ID of handle to be linked
         /// @param profile_address address of profile to be linked
         fn link(ref self: ContractState, handle_id: u256, profile_address: ContractAddress) {
-            hub_only(self.karst_hub.read());
             self._link(handle_id, profile_address);
         }