ICP integration

[danielabrahamx]

No description provided.

[danielabrahamx]

@greptile

[greptile-apps]

Greptile Overview

Summary

This PR represents a comprehensive integration of the Internet Computer Protocol (ICP) into the Paramify flood insurance platform. The changes migrate the system from an Ethereum-only architecture to a hybrid approach that includes ICP canisters alongside the existing Ethereum smart contracts.

The ICP integration introduces four main canisters: paramify_insurance (core insurance logic), flood_data_storage (USGS flood data persistence), oracle (external data fetching and caching), and frontend (asset serving). These canisters provide the same flood insurance functionality as the Ethereum contracts but leverage ICP's unique features like cycles for gas, stable memory for persistence, and inter-canister communication.

Key architectural changes include:

• A complete Rust-based insurance canister with policy creation, flood level monitoring, and automated payout functionality
• A Motoko-based flood data storage system that persists USGS water level data on-chain
• A comprehensive oracle service with authorization controls, caching mechanisms, and batch operations
• Integration with Internet Identity for decentralized authentication
• Development environment standardization through Docker containers and devcontainer configuration

The changes also establish proper TypeScript bindings and JavaScript interfaces for all canisters, enabling type-safe frontend integration. The dual data structures (Policy vs MirrorPolicy) suggest the system can maintain compatibility with existing Ethereum-based admin dashboards while transitioning to ICP.

Important Files Changed

Changed Files

Filename	Score	Overview
.dfx/local/canisters/paramify_insurance/service.did	1/5	Critical mismatch between Candid interface and Rust implementation, missing fields and incompatible function signatures
.dfx/network/local/state/replicated_state/17ee969f4d56997f3cb9c0221c0f3f903d631a7c1a552782824808c315d8356a/checkpoints/00000000000016a8/canister_states/ffffffffff9000020101/canister.pbuf	1/5	Binary protocol buffer file containing local development state that should not be in version control
.dfx/network/local/state/replicated_state/17ee969f4d56997f3cb9c0221c0f3f903d631a7c1a552782824808c315d8356a/tip/canister_states/ffffffffff9000050101/software.wasm	0/5	Empty WASM file indicating compilation failure or corrupted canister code that would prevent proper functionality
.dfx/local/canisters/oracle/service.did.d.ts	3/5	Oracle TypeScript definitions without corresponding dfx.json configuration, suggesting incomplete canister setup
.devcontainer/post-create.sh	3/5	Setup script with path mismatches and missing error handling that could fail during container initialization
.dfx/local/canisters/paramify_insurance/constructor.did	2/5	Missing expiration_time field in Candid interface that exists in Rust implementation, causing serialization issues
.dfx/local/canisters/flood_data_storage/service.did	4/5	Well-structured Candid interface for flood data storage with proper type definitions and error handling
.devcontainer/devcontainer.json	4/5	Comprehensive development environment configuration with proper tooling for ICP development
.dfx/local/canister_ids.json	5/5	Standard canister ID mapping file essential for ICP development and inter-canister communication
.dfx/local/canisters/internet_identity/service.did	5/5	Complete Internet Identity interface definition enabling proper ICP authentication integration
.dfx/local/canisters/frontend/service.did	5/5	Standard ICP asset canister interface for decentralized frontend hosting with comprehensive functionality

Confidence score: 2/5

• This PR requires extensive review and testing due to critical interface mismatches and empty WASM files that would prevent the system from functioning
• Score lowered due to fundamental issues including missing implementation fields, corrupted binaries, and extensive commit of local development state
• Pay close attention to the paramify_insurance canister interface definitions, WASM compilation outputs, and clean up the committed .dfx state files

Sequence Diagram

sequenceDiagram
    participant User
    participant DevContainer as "Dev Container"
    participant DockerCompose as "Docker Compose"
    participant DockerFile as "Dockerfile"
    participant DFX as "DFX Service"
    participant ICPCanister as "ICP Canister"
    participant OracleCanister as "Oracle Canister"
    participant FloodDataStorage as "Flood Data Storage"
    participant InternetIdentity as "Internet Identity"
    participant Frontend as "Frontend Canister"

    User->>DevContainer: "Initialize development environment"
    DevContainer->>DockerCompose: "Start services"
    DockerCompose->>DockerFile: "Build development image"
    DockerFile->>DockerFile: "Install system dependencies"
    DockerFile->>DockerFile: "Install DFX, Rust, Node.js"
    DockerFile->>DockerFile: "Install IC-specific tools"
    DockerFile->>DevContainer: "Container ready"
    
    DevContainer->>DFX: "dfx start --clean"
    DFX->>DFX: "Initialize local replica"
    DFX->>DevContainer: "Replica running on port 4943"
    
    DevContainer->>DFX: "Deploy canisters"
    DFX->>ICPCanister: "Deploy paramify_insurance canister"
    ICPCanister->>ICPCanister: "Initialize with admin principal"
    ICPCanister->>DevContainer: "Policy management ready"
    
    DFX->>OracleCanister: "Deploy oracle canister"
    OracleCanister->>OracleCanister: "Setup flood data monitoring"
    OracleCanister->>DevContainer: "Oracle service ready"
    
    DFX->>FloodDataStorage: "Deploy flood_data_storage canister"
    FloodDataStorage->>FloodDataStorage: "Initialize data storage"
    FloodDataStorage->>DevContainer: "Storage ready"
    
    DFX->>InternetIdentity: "Deploy internet_identity canister"
    InternetIdentity->>InternetIdentity: "Setup authentication"
    InternetIdentity->>DevContainer: "Identity service ready"
    
    DFX->>Frontend: "Deploy frontend canister"
    Frontend->>Frontend: "Serve static assets"
    Frontend->>DevContainer: "Frontend available on port 3000"
    
    User->>ICPCanister: "Create insurance policy"
    ICPCanister->>ICPCanister: "Validate policy parameters"
    ICPCanister->>ICPCanister: "Store policy data"
    ICPCanister->>User: "Policy created successfully"
    
    OracleCanister->>OracleCanister: "Update flood levels"
    OracleCanister->>ICPCanister: "Send flood level data"
    ICPCanister->>ICPCanister: "Check payout conditions"
    ICPCanister->>ICPCanister: "Trigger payout if conditions met"
    ICPCanister->>User: "Payout processed"

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_{85 files reviewed, 36 comments}

_{Edit Code Review Bot Settings | Greptile}

[greptile-apps]

logic: Binary state files from .dfx directory should not be committed. Add .dfx/ to .gitignore to prevent these files from being tracked

[greptile-apps]

style: This PID file should not be committed to version control. It's auto-generated by DFX and is environment-specific. Add .dfx/network/local/pid to .gitignore.

[greptile-apps]

style: Missing newline at end of file - add a trailing newline for consistency

[greptile-apps]

syntax: The parameter name "principal" should not be quoted in Candid interface definitions

Suggested change

	setAdmin: ("principal": principal) -> ();
	setAdmin: (principal: principal) -> ();

[greptile-apps]

logic: npm is not installed yet - Node.js installation is missing from this Dockerfile

Suggested change

	RUN npm install -g vessel@0.7.0
	# Install Node.js and npm
	RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | bash - \
	&& apt-get install -y nodejs
	# Install Vessel (Motoko package manager)
	RUN npm install -g vessel@0.7.0

[greptile-apps]

logic: Oracle functions use int64/nat64 types but implementation uses f64 for flood levels and thresholds

[greptile-apps]

logic: Mirror storage APIs (mirror_upsert_policy, mirror_batch_upsert_policies, etc.) have no implementation in lib.rs

[greptile-apps]

logic: health_check returns (bool, text, nat64, int64, nat64) but no such function exists in implementation

[greptile-apps]

style: Parameter name "principal" is unnecessarily quoted in function signature

[greptile-apps]

logic: DFX is installed as root but PATH is set for root user - this may cause issues since the container switches to vscode user at line 62