import type { WalletName } from '@solana/wallet-adapter-base';
import {
    BaseMessageSignerWalletAdapter,
    scopePollingDetectionStrategy,
    WalletAccountError,
    WalletNotConnectedError,
    WalletNotReadyError,
    WalletPublicKeyError,
    WalletReadyState,
    WalletSignMessageError,
    WalletSignTransactionError,
} from '@solana/wallet-adapter-base';
import type { Transaction } from '@solana/web3.js';
import { PublicKey } from '@solana/web3.js';

interface CloverWallet {
    isCloverWallet?: boolean;
    getAccount(): Promise<string>;
    signTransaction(transaction: Transaction): Promise<Transaction>;
    signAllTransactions(transactions: Transaction[]): Promise<Transaction[]>;
    signMessage(message: Uint8Array): Promise<{ signature: Uint8Array }>;
}

interface CloverWalletWindow extends Window {
    clover_solana?: CloverWallet;
}

declare const window: CloverWalletWindow;

export interface CloverWalletAdapterConfig {}

export const CloverWalletName = 'Clover' as WalletName<'Clover'>;

export class CloverWalletAdapter extends BaseMessageSignerWalletAdapter {
    name = CloverWalletName;
    url = 'https://clover.finance';
    icon =
        'data:image/svg+xml;base64,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';
    readonly supportedTransactionVersions = null;

    private _connecting: boolean;
    private _wallet: CloverWallet | null;
    private _publicKey: PublicKey | null;
    private _readyState: WalletReadyState =
        typeof window === 'undefined' || typeof document === 'undefined'
            ? WalletReadyState.Unsupported
            : WalletReadyState.NotDetected;

    constructor(config: CloverWalletAdapterConfig = {}) {
        super();
        this._connecting = false;
        this._wallet = null;
        this._publicKey = null;

        if (this._readyState !== WalletReadyState.Unsupported) {
            scopePollingDetectionStrategy(() => {
                if (window.clover_solana?.isCloverWallet) {
                    this._readyState = WalletReadyState.Installed;
                    this.emit('readyStateChange', this._readyState);
                    return true;
                }
                return false;
            });
        }
    }

    get publicKey() {
        return this._publicKey;
    }

    get connecting() {
        return this._connecting;
    }

    get readyState() {
        return this._readyState;
    }

    async connect(): Promise<void> {
        try {
            if (this.connected || this.connecting) return;
            if (this._readyState !== WalletReadyState.Installed) throw new WalletNotReadyError();

            this._connecting = true;

            // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
            const wallet = window.clover_solana!;

            let account: string;
            try {
                account = await wallet.getAccount();
            } catch (error: any) {
                throw new WalletAccountError(error?.message, error);
            }

            let publicKey: PublicKey;
            try {
                publicKey = new PublicKey(account);
            } catch (error: any) {
                throw new WalletPublicKeyError(error?.message, error);
            }

            this._wallet = wallet;
            this._publicKey = publicKey;

            this.emit('connect', publicKey);
        } catch (error: any) {
            this.emit('error', error);
            throw error;
        } finally {
            this._connecting = false;
        }
    }

    async disconnect(): Promise<void> {
        if (this._wallet) {
            this._wallet = null;
            this._publicKey = null;
        }

        this.emit('disconnect');
    }

    async signTransaction<T extends Transaction>(transaction: T): Promise<T> {
        try {
            const wallet = this._wallet;
            if (!wallet) throw new WalletNotConnectedError();

            try {
                return ((await wallet.signTransaction(transaction)) as T) || transaction;
            } catch (error: any) {
                throw new WalletSignTransactionError(error?.message, error);
            }
        } catch (error: any) {
            this.emit('error', error);
            throw error;
        }
    }

    async signAllTransactions<T extends Transaction>(transactions: T[]): Promise<T[]> {
        try {
            const wallet = this._wallet;
            if (!wallet) throw new WalletNotConnectedError();

            try {
                return ((await wallet.signAllTransactions(transactions)) as T[]) || transactions;
            } catch (error: any) {
                throw new WalletSignTransactionError(error?.message, error);
            }
        } catch (error: any) {
            this.emit('error', error);
            throw error;
        }
    }

    async signMessage(message: Uint8Array): Promise<Uint8Array> {
        try {
            const wallet = this._wallet;
            if (!wallet) throw new WalletNotConnectedError();

            try {
                const { signature } = await wallet.signMessage(message);
                return Uint8Array.from(signature);
            } catch (error: any) {
                throw new WalletSignMessageError(error?.message, error);
            }
        } catch (error: any) {
            this.emit('error', error);
            throw error;
        }
    }
}