// Finance Rhai Script Example

print("--- Starting Finance Rhai Script ---");

// 1. Create an Account using the builder pattern
let user1_id = 1; // Assuming this user_id is a separate concept, e.g. from an auth system
let acc1 = new_account()
    .set_name("User1 Main Account")
    .set_user_id(user1_id) // user_id is i64 in Rhai, u32 in Rust. Conversion handled by setter.
    .set_description("Primary account for User 1")
    .set_ledger("LedgerX")
    .set_address("0x123MainSt")
    .set_pubkey("pubkeyUser1");
print(`Created account (pre-save): ${acc1.name} with temp ID ${acc1.id}`);

// 2. Save Account to Mock DB and get the version with DB-assigned ID
let acc1 = set_account(acc1); // Shadowing acc1 with the returned instance
print(`Account ${acc1.name} saved to DB with ID ${acc1.id}.`);

// 3. Retrieve Account from Mock DB (using the new ID)
let fetched_acc1 = get_account_by_id(acc1.id); // Use the ID from the saved acc1
print(`Fetched account from DB: ${fetched_acc1.name}, User ID: ${fetched_acc1.user_id}`);

// 4. Create an Asset using the builder pattern
let asset1 = new_asset()
    .set_name("HeroCoin")
    .set_description("Utility token for Hero Platform")
    .set_amount(1000.0)
    .set_address("0xTokenContract")
    .set_asset_type("Erc20") // Setter handles string to enum
    .set_decimals(18);
print(`Created asset (pre-save): ${asset1.name} (temp ID: ${asset1.id}), Amount: ${asset1.amount}, Type: ${asset1.asset_type_str}`);

// 5. Save Asset to Mock DB and get the version with DB-assigned ID
let asset1 = set_asset(asset1); // Shadowing asset1
print(`Asset ${asset1.name} (ID: ${asset1.id}) saved to DB.`);

// 6. Retrieve Asset from Mock DB (using the new ID)
let fetched_asset1 = get_asset_by_id(asset1.id); // Use the ID from the saved asset1
print(`Fetched asset from DB: ${fetched_asset1.name}, Address: ${fetched_asset1.address}`);

// 7. Add Asset to Account
// We have 'acc1' and 'asset1' from previous steps, both saved to DB and have their IDs.
print(`Attempting to add asset ${asset1.id} to account ${acc1.id}`);

// Fetch the latest version of the account before modifying
// let mut acc1_for_update = get_account_by_id(acc1.get_id());
// // Fetch the asset to add (or use fetched_asset1 if it's the correct one)
// let asset_to_add = get_asset_by_id(asset1.get_id());
// 
// try {
//     acc1_for_update = acc1_for_update.add_asset(asset_to_add); // add_asset returns the modified account
//     acc1_for_update = set_account(acc1_for_update); // Save the account with the new asset
//     print(`Asset '${asset_to_add.name}' added to account '${acc1_for_update.name}'.`);
//     print(`Account now has ${acc1_for_update.get_assets_cloned().len()} assets.`);
//     // Verify the asset is there
//     if (acc1_for_update.get_assets_cloned().len() > 0) {
//         let first_asset_in_account = acc1_for_update.get_assets_cloned()[0];
//         print(`First asset in account: ${first_asset_in_account.name} (ID: ${first_asset_in_account.id})`);
//     }
// } catch (err) {
//     print(`Error adding asset to account: ${err}`);
// }

// 8. Create a Listing for the Asset using the builder pattern
let current_timestamp = timestamp(); // Rhai's built-in for current unix timestamp (seconds)
let expires_at_ts = current_timestamp + (24 * 60 * 60 * 7); // Expires in 7 days

let listing1 = new_listing()
    .set_title("Rare HeroCoin Batch")
    .set_description("100 HeroCoins for sale")
    .set_asset_id(asset1.id.to_string()) // Use ID from the saved asset1
    .set_asset_type_str("Erc20")               // asset_type as string
    .set_seller_id(user1_id.to_string())  // seller_id as string (using the predefined user1_id)
    .set_price(50.0)                  // price
    .set_currency("USD")                 // currency
    .set_listing_type("FixedPrice")    // listing_type as string
    .set_tags(["token", "herocoin", "sale"]); // tags as array of strings
    // image_url is None by default from new_listing(), so no need to call set_image_url_opt for None

print(`Created listing (pre-save): ${listing1.title} (temp ID: ${listing1.id}), Price: ${listing1.price} ${listing1.currency}`);
print(`Listing type: ${listing1.listing_type}, Status: ${listing1.status}`);
print(`Listing expires_at_ts_opt: ${listing1.expires_at_ts_opt}`);

// 9. Save Listing to Mock DB and get the version with DB-assigned ID
let listing1 = set_listing(listing1); // Shadowing listing1
print(`Listing ${listing1.get_title()} (ID: ${listing1.get_id()}) saved to DB.`);

// 10. Retrieve Listing from Mock DB (using the new ID)
let fetched_listing1 = get_listing_by_id(listing1.get_id()); // Use the ID from the saved listing1
print(`Fetched listing from DB: ${fetched_listing1.get_title()}, Seller ID: ${fetched_listing1.get_seller_id()}`);
print(`Fetched listing asset_id: ${fetched_listing1.get_asset_id()}, asset_type: ${fetched_listing1.get_asset_type_str()}`);

// 11. Demonstrate an auction listing using the builder pattern
let auction_listing = new_listing()
    .set_title("Vintage Hero Figurine")
    .set_description("Rare collectible, starting bid low!")
    .set_asset_id("asset_nft_123") // Mock asset ID for an NFT - this asset isn't created/saved in script
    .set_asset_type("Erc721")
    .set_seller_id(user1_id.to_string()) // Using the predefined user1_id
    .set_price(10.0) // Starting price
    .set_currency("USD")
    .set_listing_type("Auction")
    // expires_at_ts_opt is None by default
    .set_tags(["collectible", "rare", "auction"])
    .set_image_url_opt("http://example.com/figurine.png");

// Save Auction Listing to Mock DB and get the version with DB-assigned ID
let auction_listing = set_listing(auction_listing); // Shadowing auction_listing
print(`Created auction listing: ${auction_listing.get_title()} (ID: ${auction_listing.get_id()})`);

// 12. Create a Bid for the auction listing (Bid model not using builder pattern in this refactor)
let bid1 = new_bid(auction_listing.get_id().to_string(), 2, 12.0, "USD"); // User 2 bids 12 USD
print(`Created bid for listing ${bid1.listing_id} by bidder ${bid1.bidder_id} for ${bid1.amount} ${bid1.currency}`);
print(`Bid status: ${bid1.status_str}, Created at: ${bid1.created_at_ts}`);

// 13. Add bid to listing
let auction_listing_for_bid = get_listing_by_id(auction_listing.get_id());
// print(`Listing '${auction_listing_for_bid.get_title()}' fetched for bidding. Current price: ${auction_listing_for_bid.get_price()}, Bids: ${auction_listing_for_bid.get_bids_cloned().len()}`);

try {
    let updated_listing_after_bid = auction_listing_for_bid.add_listing_bid(bid1);
    print(`Bid added to '${updated_listing_after_bid.get_title()}'. New bid count: ${updated_listing_after_bid.get_bids_cloned().len()}, New price: ${updated_listing_after_bid.get_price()};`);
    set_listing(updated_listing_after_bid); // Save updated listing to DB
    print("Auction listing with new bid saved to DB;");
} catch (err) {
    print(`Error adding bid: ${err}`);
}

// 14. Try to complete sale for the fixed price listing
let listing_to_sell = get_listing_by_id(listing1.id); 
let buyer_user_id = 3;
print(`Attempting to complete sale for listing: ${listing_to_sell.title} by buyer ${buyer_user_id}`);
try {
    let sold_listing = listing_to_sell.complete_listing_sale(buyer_user_id.to_string(), listing_to_sell.price);
    print(`Sale completed for listing ${sold_listing.id}. New status: ${sold_listing.status}`);
    print(`Buyer ID: ${sold_listing.buyer_id_opt}, Sale Price: ${sold_listing.sale_price_opt}`);
    set_listing(sold_listing); // Save updated listing
} catch (err) {
    print(`Error completing sale: ${err}`);
}

print("--- Finance Rhai Script Finished ---");