gigentic-frontend

use crate::states::{service_registry::ServiceRegistry, Service};use crate::ErrorCode;use anchor_lang::prelude::*;use anchor_spl::token_interface::{Mint, TokenInterface}; #[derive(Accounts)]#[instruction(_unique_id: String)]pub struct InitializeService<'info> {    // The provider who is initializing the service    #[account(mut)]    provider: Signer<'info>,     // The service registry where the service will be registered    #[account(mut)]    service_registry: Account<'info, ServiceRegistry>,     // The service account being initialized    #[account(        init,        space = 8+Service::INIT_SPACE,        payer = provider,        seeds = [b"service", _unique_id.as_bytes(), provider.key().as_ref() ],        bump    )]

1. Line 11 provider: Signer<'info>,: Requires this account to have signed the transaction.
2. Line 19 init,: Creates and pays for a new account. Space and payer must be specified.
3. Line 22 seeds = [b"service", _unique_id.as_bytes(), provider.key().as_ref() ],: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
4. Line 23 bump: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.

use crate::states::{Escrow, Service};use crate::ErrorCode;use anchor_lang::prelude::*; #[derive(Accounts)]pub struct SignService<'info> {    #[account(mut)]    pub signer: Signer<'info>,     #[account(mut)]    pub service: Account<'info, Service>,     #[account(        mut,        close = signer, // Transfer remaining lamports to the customer when the account is closed        seeds = [b"escrow", service.key().as_ref(), service.provider.key().as_ref(), signer.key().as_ref()],        bump,    )]    pub escrow: Account<'info, Escrow>,     /// CHECK : This is an account info, not an account    #[account(mut, constraint = service_provider.key() == escrow.service_provider.key() && service_provider.key() == service.provider.key())]    pub service_provider: AccountInfo<'info>,

1. Line 8 pub signer: Signer<'info>,: Requires this account to have signed the transaction.
2. Line 15 close = signer, // Transfer remaining lamports to the customer when the account is closed: Closes the account at the end of the instruction and refunds its lamports.
3. Line 16 seeds = [b"escrow", service.key().as_ref(), service.provider.key().as_ref(), signer.key().: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
4. Line 17 bump,: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.

use crate::states::review::Review;use crate::states::service_registry::ServiceRegistry;use crate::states::{Escrow, Service};use crate::ErrorCode;use anchor_lang::prelude::*;#[derive(Accounts)]#[instruction(review_id: String)]pub struct PayService<'info> {    #[account(mut)]    pub customer: Signer<'info>,     #[account(mut)]    pub service: Account<'info, Service>,     #[account(mut)]    service_registry: Account<'info, ServiceRegistry>,     #[account(        init,        payer = customer,        space = 8+ Escrow::INIT_SPACE,        seeds = [b"escrow", service.key().as_ref(), service.provider.key().as_ref(), customer.key().as_ref()],        bump    )]

1. Line 10 pub customer: Signer<'info>,: Requires this account to have signed the transaction.
2. Line 19 init,: Creates and pays for a new account. Space and payer must be specified.
3. Line 22 seeds = [b"escrow", service.key().as_ref(), service.provider.key().as_ref(), customer.key(: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
4. Line 23 bump: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.

use crate::states::review::Review;use crate::ErrorCode;use anchor_lang::prelude::*; #[derive(Accounts)]pub struct ReviewCustomerToProviderService<'info> {    // The account of the user deploying and paying for the initialization.    // Marked as `mut` because it will be charged for rent.    #[account(mut)]    pub signer: Signer<'info>,     #[account(mut, constraint = review.customer == signer.key())]    pub review: Account<'info, Review>,     pub system_program: Program<'info, System>,} impl<'info> ReviewCustomerToProviderService<'info> {    pub fn handler(&mut self, rating: u8, review: String) -> Result<()> {        require!(rating <= 5, ErrorCode::InvalidRating);        self.review.customer_to_provider_rating = rating;        self.review.customer_to_provider_review = review;        Ok(())    }

1. Line 10 pub signer: Signer<'info>,: Requires this account to have signed the transaction.
2. Line 20 require!(rating <= 5, ErrorCode::InvalidRating);: An explicit validation that aborts the instruction with an error.