The Agri Insurance System is a Rust-based implementation designed for the Internet Computer (IC) environment. This system manages agricultural-related financial transactions, including debts, escrows, crop insurance, and insurance claims. Leveraging the IC framework, it utilizes stable storage structures and memory management to ensure persistent and secure data storage.

• serde: A serialization/deserialization library for Rust.
• candid: A library for Candid serialization used in IC.
• ic_cdk: The Internet Computer's Candid Development Kit, providing access to IC-specific functionality.
• ic_stable_structures: A library for stable storage structures and memory management in IC.

• Represents a financial obligation related to agricultural activities.
• Fields:
  • id: Unique identifier for the debt.
  • debtor: String representing the party responsible for the debt.
  • creditor: String representing the party owed the debt.
  • amount: The financial amount associated with the debt.
  • created_at: Timestamp indicating when the debt was created.

• Represents an amount of money held in trust for agricultural transactions.
• Fields:
  • debt_id: Identifier linking the escrow to a specific debt.
  • amount: The amount held in escrow.
  • created_at: Timestamp indicating when the escrow was created.

• Represents an insurance policy for agricultural crops.
• Fields:
  • id: Unique identifier for the insurance.
  • farmer: String representing the farmer who owns the insured crop.
  • crop_type: String representing the type of the insured crop.
  • coverage_amount: The coverage amount provided by the insurance.
  • coverage_start_date: Timestamp indicating when the insurance coverage starts.
  • coverage_end_date: Timestamp indicating when the insurance coverage ends.

• Represents a claim made against an agricultural insurance policy.
• Fields:
  • insurance_id: Identifier linking the claim to a specific crop insurance.
  • claim_amount: The amount claimed.
  • claim_date: Timestamp indicating when the claim was submitted.

• The system uses a thread-local memory manager (MEMORY_MANAGER) for handling virtual memory.
• Unique identifiers (ID_COUNTER) generate sequential IDs for debts, escrows, insurance, and claims.
• Stable BTreeMaps (DEBT_STORAGE, ESCROW_STORAGE, CROP_INSURANCE_STORAGE, INSURANCE_CLAIM_STORAGE) store and manage data persistently.

1. get_debt(id: u64) -> Result<Debt, Error>: Retrieve details of a debt by its ID.
2. get_escrow(debt_id: u64) -> Result<Escrow, Error>: Retrieve details of an escrow by the associated debt ID.
3. get_crop_insurance(id: u64) -> Result<CropInsurance, Error>: Retrieve details of crop insurance by its ID.
4. get_insurance_claim(claim_id: u64) -> Result<InsuranceClaim, Error>: Retrieve details of an insurance claim by its ID.

1. add_debt(debt: DebtPayload) -> Option<Debt>: Add a new debt with the provided payload.
2. update_debt(id: u64, payload: DebtPayload) -> Result<Debt, Error>: Update details of an existing debt.
3. create_escrow(payload: EscrowPayload) -> Result<Escrow, Error>: Create an escrow for a specified debt.
4. purchase_crop_insurance(payload: CropInsurancePayload) -> Option<CropInsurance>: Purchase crop insurance with the provided details.
5. submit_insurance_claim(payload: InsuranceClaimPayload) -> Result<InsuranceClaim, Error>: Submit an insurance claim for a specified crop insurance.

• do_insert_debt(debt: &Debt): Helper function to insert a debt into the stable storage.
• do_insert_escrow(escrow: &Escrow): Helper function to insert an escrow into the stable storage.
• _get_debt(id: &u64) -> Option<Debt>: Helper function to retrieve a debt by its ID.
• _get_escrow(debt_id: &u64) -> Option<Escrow>: Helper function to retrieve an escrow by the associated debt ID.
• _get_crop_insurance(id: &u64) -> Option<CropInsurance>: Helper function to retrieve crop insurance by its ID.
• _get_insurance_claim(claim_id: &u64) -> Option<InsuranceClaim>: Helper function to retrieve an insurance claim by its ID.

• The system includes a macro (ic_cdk::export_candid!()) for exporting the Candid interface.

1. Clone the Repository:

   git clone https://github.com/ken-dev001/agri-insurance-system.git
   cd  agri-insurance-system

2. Install Dependencies:

   npm install

3. Run the Code:

   dfx start

4. Deploy the Code:

   dfx deploy

• The Agri Insurance System is intended for use within the Internet Computer environment, where it can be deployed as a canister.