Added FileCoin storage provider for services metadata and files

docs/main/client_lib_generator.md

@@ -6,8 +6,6 @@ Entities:
 1. [ClientLibGenerator](#class-clientlibgenerator)
    - [\_\_init\_\_](#__init__)
    - [generate_client_library](#generate_client_library)
-   - [_get_service_metadata_from_registry](#_get_service_metadata_from_registry)
-   - [_get_service_registration](#_get_service_registration)
 
 ### Class `ClientLibGenerator`
 
@@ -21,8 +19,7 @@ This class is used to generate client library files for a given service.
 
 #### attributes
 
-- `sdk_config` (Config): An instance of the `Config` class
-- `registry_contract` (web3.contract.Contract): An instance of the `Contract` class (from `snet.cli`) for interacting with the Registry contract.
+- `_metadata_provider` (StorageProvider): An instance of the `StorageProvider` class.
 - `org_id` (str): The organization ID of the service.
 - `service_id` (str): The service ID.
 - `language` (str): The language of the client library. Default is `python`.
@@ -36,8 +33,7 @@ Initializes a new instance of the class. Initializes the attributes by arguments
 
 ###### args:
 
-- `sdk_config` (Config): An instance of the `Config` class
-- `registry_contract` (web3.contract.Contract): An instance of the `Contract` class (from `snet.cli`) for interacting with the Registry contract.
+- `metadata_provider` (StorageProvider): An instance of the `StorageProvider` class.
 - `org_id` (str): The organization ID of the service.
 - `service_id` (str): The service ID.
 
@@ -49,27 +45,9 @@ Initializes a new instance of the class. Initializes the attributes by arguments
 
 Generates client library stub files based on specified organization and service ids, including:
 - getting service metadata from Registry
-- getting .proto file from IPFS
+- getting archived proto files from IPFS or FileCoin and extracting them
 - compiling .proto file to stub file and saving it in a given directory
 
-#### `_get_service_metadata_from_registry`
-
-Retrieves service metadata. Fetches the service registration from the Registry contract, extracts the metadata URI, 
-downloads the metadata from IPFS, and parses it into a `MPEServiceMetadata` object.
-
 ###### returns:
 
-- The service metadata. (MPEServiceMetadata)
-
-#### `_get_service_registration`
-
-Retrieves the service registration from the Registry contract using the `getServiceRegistrationById` function of it.
-
-###### returns:
-
-- Dictionary containing the service registration. (dict[str, Any])
-
-###### raises:
-
-- `Exception`: If the service with the specified ID is not found in the organization.
-
+- _None_

docs/main/config.md

@@ -35,6 +35,8 @@ and regenerating them every time.
   - `registry_contract_address` (str): The address of the Registry smart contract.
   - `signer_private_key` (str): The private key of the signer. Used to sign the service call. Equals to `private_key` 
 by default.
+  - `lighthouse_token` (str): The Lighthouse token used to access the Lighthouse storage provider. Defaults to " ". 
+Currently, it can't be changed.
 
 #### methods
 

docs/main/init.md

@@ -30,16 +30,14 @@ It provides methods for creating service clients, managing identities, and confi
 #### attributes
 
 - `_sdk_config` (Config): An instance of the `Config` class.
-- `_metadata_provider` (MetadataProvider): An instance of the `MetadataProvider` class. _Note_: There is currently only 
-one implementation of `MetadataProvider` which is `IPFSMetadataProvider`, so this attribute can only be initialized to 
-`IPFSMetadataProvider` at this time.
+- `_metadata_provider` (StorageProvider): An instance of the `StorageProvider` class for fetching metadata and .proto files.
 - `web3` (Web3): An instance of the `Web3` class for interacting with the Ethereum blockchain.
 - `mpe_contract` (MPEContract): An instance of the `MPEContract` class for interacting with the MultiPartyEscrow contract.
-- `ipfs_client` (ipfshttpclient.Client): An instance of the `ipfshttpclient.Client` class for interacting with the 
-InterPlanetary File System.
-- `registry_contract` (Contract): An instance of the `Contract` class (from `snet.cli`) for interacting with the Registry contract.
+- `registry_contract` (Contract): An instance of the `Contract` class for interacting with the Registry contract.
 - `account` (Account): An instance of the `Account` class for interacting with the MultiPartyEscrow and 
 SingularityNetToken contracts.
+- `payment_channel_provider` (PaymentChannelProvider): An instance of the `PaymentChannelProvider` class for managing 
+payment channels.
 
 #### methods
 

docs/main/service_client.md

@@ -57,6 +57,7 @@ the `PaymentStrategy` inheritor classes.
 - `grpc_channel` (grpc.Channel): The gRPC channel with interceptor.
 - `payment_channel_provider` (PaymentChannelProvider): An instance of the `PaymentChannelProvider` class for 
 working with channels and interacting with MPE.
+- `payment_channel_state_service_client` (Any): Stub for interacting with PaymentChannelStateService via gRPC.
 - `service` (Any): The gRPC service stub instance.
 - `pb2_module` (ModuleType): The imported protobuf module.
 - `payment_channels` (list[PaymentChannel]): The list of payment channels.
@@ -85,6 +86,7 @@ Initializes a new instance of the class.
 - `account` (Account): An instance of the `Account` class.
 - `sdk_web3` (Web3): The `Web3` instance.
 - `pb2_module` (str | ModuleType): The module containing the gRPC message definitions.
+- `payment_channel_provider` (PaymentChannelProvider): The payment channel provider instance.
 
 ###### returns:
 

docs/mpe/mpe_contract.md

@@ -31,8 +31,6 @@ funds into the contract, opening a channel, adding funds to a channel, extending
 - `web3` (Web3): An instance of the Web3 class for interacting with the Ethereum blockchain.
 - `contract` (Contract): An instance of the `Contract` class from the `web3` library for interacting 
 with the MultiPartyEscrow contract.
-- `event_topics` (list): A list of event topics for the MultiPartyEscrow contract.
-- `deployment_block` (int | BlockNumber): The block number at which the MultiPartyEscrow contract was deployed.
 
 #### methods
 
@@ -44,7 +42,7 @@ If no contract address is provided, it uses the default MultiPartyEscrow contrac
 ###### args:
 
 - `w3` (Web3): An instance of the `Web3` class.
-- `address` (str): The address of the MultiPartyEscrow contract. Defaults to None.
+- `address` (str): The address of the MultiPartyEscrow contract. Defaults to _None_.
 
 ###### returns:
 

docs/mpe/payment_channel_provider.md

@@ -5,6 +5,10 @@
 Entities:
 1. [PaymentChannelProvider](#class-paymentchannelprovider)
    - [\_\_init\_\_](#__init__)
+   - [update_cache](#update_cache)
+   - [_event_data_args_to_dict](#_event_data_args_to_dict)
+   - [_get_all_channels_from_blockchain_logs_to_dicts](#_get_all_channels_from_blockchain_logs_to_dicts)
+   - [_get_channels_from_cache](#_get_channels_from_cache)
    - [get_past_open_channels](#get_past_open_channels)
    - [open_channel](#open_channel)
    - [deposit_and_open_channel](#deposit_and_open_channel)
@@ -27,7 +31,9 @@ A class for managing payment channels.
 with the MultiPartyEscrow contract.
 - `event_topics` (list): A list of event topics for the MultiPartyEscrow contract.
 - `deployment_block` (int | BlockNumber): The block number at which the MultiPartyEscrow contract was deployed.
-- `payment_channel_state_service_client` (ServiceStub): A stub for interacting with PaymentChannelStateService via gRPC.
+- `mpe_address` (ChecksumAddress): The address of the MultiPartyEscrow contract.
+- `channels_file` (Path): The path to the cache file for payment channels. 
+Equals to `~/.snet/cache/mpe/MPE_ADDRESS/channels.pickle`.
 
 #### methods
 
@@ -45,18 +51,62 @@ Initializes a new instance of the class.
 
 - _None_
 
+#### `update_cache`
+
+Updates the cache with channels from blockchain logs for the MPE contract. Cache is stored as a pickle file.
+It stores the list of payment channels and last read block number. If there is no cache, logs are retrieved starting 
+from the deployment block up to the current block, and the following times, starting from the last read block.
+
+###### returns:
+
+- _None_
+
+#### `_event_data_args_to_dict`
+
+Converts event data into a dictionary, keeping only the required fields.
+
+###### args:
+
+- `event_data` (dict[str, Any]): The event to convert to a dictionary.
+
+###### returns:
+
+- A dictionary containing the event data. (dict[str, Any])
+
+#### `_get_all_channels_from_blockchain_logs_to_dicts`
+
+Retrieves all payment channels from the blockchain logs with a given block range and returns them as a list 
+of dictionaries.
+
+###### args:
+
+- `starting_block_number` (int): The starting block number of the block range.
+- `to_block_number` (int): The ending block number of the block range.
+
+###### returns:
+
+- A list of payment channel dictionaries. (list[dict[str, Any]])
+
+#### `_get_channels_from_cache`
+
+Updates cache with using `update_cache` and retrieves all payment channels from the cache.
+
+###### returns:
+
+- A list of payment channel dictionaries. (list[dict[str, Any]])
+
 #### `get_past_open_channels`
 
-Extracts a list of all past open payment channels from the blockchain, filters it by account and payment group, 
+Extracts a list of all past open payment channels from the cache, filters it by account and payment group, 
 and returns it.
 
 ###### args:
 
 - `account` (Account): The account object to filter the channels by its address and signer address.
 - `payment_address` (str): The payment address to filter the channels by.
 - `group_id` (str): The group ID to filter the channels by.
-- `starting_block_number` (int): The starting block number of the block range. Defaults to 0.
-- `to_block_number` (int): The ending block number of the block range. Defauls to _None_.
+- `payment_channel_state_service_client` (Any): Stub for interacting with PaymentChannelStateService via gRPC to 
+pass it to PaymentChannel instances.
 
 ###### returns:
 
@@ -74,6 +124,8 @@ And then returns it.
 - `expiration` (int): The expiration time of the payment channel in blocks.
 - `payment_address` (str): The address of the payment recipient.
 - `group_id` (str): The ID of the payment group.
+- `payment_channel_state_service_client` (Any): Stub for interacting with PaymentChannelStateService via gRPC to 
+pass it to PaymentChannel instances.
 
 ###### returns:
 
@@ -91,21 +143,25 @@ and expiration time. And then returns it.
 - `expiration` (int): The expiration time of the payment channel in blocks.
 - `payment_address` (str): The address of the payment recipient.
 - `group_id` (str): The ID of the payment group.
+- `payment_channel_state_service_client` (Any): Stub for interacting with PaymentChannelStateService via gRPC to 
+pass it to PaymentChannel instances.
 
 ###### returns:
 
 - The newly opened payment channel. (PaymentChannel)
 
 #### `_get_newly_opened_channel`
 
-Retrieves the newly opened payment channel from blockchain based on the given data.
+Retrieves the newly opened payment channel from cache (which is previously updated) based on the given data.
 
 ###### args:
 
 - `receipt` (dict): The receipt of the transaction that opened the payment channel.
 - `account` (Account): The account object associated with the payment channel.
 - `payment_address` (str): The payment address of the payment channel.
 - `group_id` (str): The ID of the payment group.
+- `payment_channel_state_service_client` (Any): Stub for interacting with PaymentChannelStateService via gRPC to 
+pass it to PaymentChannel instances.
 
 ###### returns: