/* eslint-disable @typescript-eslint/no-unused-vars */
import {
  Address,
  isSome,
  IAccountMeta,
  IAccountSignerMeta,
  IInstruction,
  Option,
  TransactionSigner,
} from "@solana/kit"
/* eslint-enable @typescript-eslint/no-unused-vars */
import BN from "bn.js" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as borsh from "@coral-xyz/borsh" // eslint-disable-line @typescript-eslint/no-unused-vars
import { borshAddress } from "../utils" // eslint-disable-line @typescript-eslint/no-unused-vars
import * as types from "../types" // eslint-disable-line @typescript-eslint/no-unused-vars
import { PROGRAM_ID } from "../programId"

export interface InitializePositionPdaArgs {
  lowerBinId: number
  width: number
}

export interface InitializePositionPdaAccounts {
  payer: TransactionSigner
  base: TransactionSigner
  position: Address
  lbPair: Address
  /** owner */
  owner: TransactionSigner
  systemProgram: Address
  rent: Address
  eventAuthority: Address
  program: Address
}

export const layout = borsh.struct([
  borsh.i32("lowerBinId"),
  borsh.i32("width"),
])

export function initializePositionPda(
  args: InitializePositionPdaArgs,
  accounts: InitializePositionPdaAccounts,
  programAddress: Address = PROGRAM_ID
) {
  const keys: Array<IAccountMeta | IAccountSignerMeta> = [
    { address: accounts.payer.address, role: 3, signer: accounts.payer },
    { address: accounts.base.address, role: 2, signer: accounts.base },
    { address: accounts.position, role: 1 },
    { address: accounts.lbPair, role: 0 },
    { address: accounts.owner.address, role: 2, signer: accounts.owner },
    { address: accounts.systemProgram, role: 0 },
    { address: accounts.rent, role: 0 },
    { address: accounts.eventAuthority, role: 0 },
    { address: accounts.program, role: 0 },
  ]
  const identifier = Buffer.from([46, 82, 125, 146, 85, 141, 228, 153])
  const buffer = Buffer.alloc(1000)
  const len = layout.encode(
    {
      lowerBinId: args.lowerBinId,
      width: args.width,
    },
    buffer
  )
  const data = Buffer.concat([identifier, buffer]).slice(0, 8 + len)
  const ix: IInstruction = { accounts: keys, programAddress, data }
  return ix
}