// Example 12: Legal Contract with Signatures

print("=== Legal Contract Example ===\n");

// Get a context to work with
print("1. Getting context...");
let ctx = get_context(["alice", "bob", "charlie"]);
print("   ✓ Context created: " + ctx.context_id());

// Create a contract
print("\n2. Creating a new contract...");
let contract = new_contract(1)
    .title("Service Agreement")
    .content("This agreement is made between Party A and Party B for the provision of software development services...")
    .creator_id(101);

print("   ✓ Contract created");
print("   Title: " + contract.title());
print("   Status: " + contract.status());
print("   Creator ID: " + contract.creator_id());

// Add signature IDs to contract (signatures would be created separately)
print("\n3. Adding signature IDs to contract...");
print("   (In practice, signatures would be created separately and their IDs referenced here)");

contract = contract
    .add_signature(1001)  // Alice's signature ID
    .add_signature(1002);  // Bob's signature ID

print("   ✓ Signature IDs added");
print("   Total signatures: " + contract.signature_count());

// Check if contract is fully signed
print("\n4. Checking signature status...");
let required_signatures = 2;
if contract.is_fully_signed(required_signatures) {
    print("   ✓ Contract is fully signed!");
    print("   Activating contract...");
    contract = contract.activate();
    print("   ✓ Contract status: " + contract.status());
} else {
    print("   ⚠ Contract needs more signatures");
    print("   Current: " + contract.signature_count() + " / Required: " + required_signatures);
}

// Store the contract
print("\n5. Storing contract in context...");
ctx.save(contract);
print("   ✓ Contract stored");

// Simulate contract completion
print("\n6. Completing contract...");
contract = contract.complete();
print("   ✓ Contract status: " + contract.status());

// Example: Contract cancellation (alternative flow)
print("\n7. Example: Creating a contract that gets cancelled...");
let cancelled_contract = new_contract(2)
    .title("Cancelled Agreement")
    .content("This contract was cancelled before completion")
    .creator_id(101);

print("   ✓ Contract created");
cancelled_contract = cancelled_contract.cancel();
print("   ✓ Contract cancelled");
print("   Status: " + cancelled_contract.status());

// Example: Removing a signature
print("\n8. Example: Removing a signature...");
let test_contract = new_contract(3)
    .title("Test Contract")
    .add_signature(2001)
    .add_signature(2002)
    .add_signature(2003);

print("   ✓ Contract with 3 signatures created");
print("   Signatures before removal: " + test_contract.signature_count());

test_contract = test_contract.remove_signature(2002);
print("   ✓ Signature 2002 removed");
print("   Signatures after removal: " + test_contract.signature_count());

print("\n=== Legal Contract Example Complete ===");
print("\nContract Workflow:");
print("1. Create contract with title, content, and metadata");
print("2. Parties create signatures for the contract");
print("3. Add signatures to contract using signature IDs");
print("4. Check if contract is fully signed");
print("5. Activate contract when all signatures are collected");
print("6. Complete or cancel contract based on outcome");
print("\nContract Statuses:");
print("- Draft: Initial state, collecting signatures");
print("- Active: Fully signed and in effect");
print("- Completed: Successfully fulfilled");
print("- Cancelled: Terminated before completion");