import type { EventEmitter, SendTransactionOptions, WalletName } from '@solana/wallet-adapter-base';
import {
    BaseMessageSignerWalletAdapter,
    scopePollingDetectionStrategy,
    WalletAccountError,
    WalletConnectionError,
    WalletDisconnectedError,
    WalletDisconnectionError,
    WalletError,
    WalletNotConnectedError,
    WalletNotReadyError,
    WalletPublicKeyError,
    WalletReadyState,
    WalletSendTransactionError,
    WalletSignMessageError,
    WalletSignTransactionError,
} from '@solana/wallet-adapter-base';
import type { Connection, SendOptions, Transaction, TransactionSignature } from '@solana/web3.js';
import { PublicKey } from '@solana/web3.js';

interface ExodusWalletEvents {
    connect(...args: unknown[]): unknown;
    disconnect(...args: unknown[]): unknown;
}

interface ExodusWallet extends EventEmitter<ExodusWalletEvents> {
    isExodus: boolean;
    publicKey?: { toBytes(): Uint8Array };
    isConnected: boolean;
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    signTransaction(transaction: Transaction): Promise<Transaction>;
    signAllTransactions(transactions: Transaction[]): Promise<Transaction[]>;
    signAndSendTransaction(
        transaction: Transaction,
        options?: SendOptions
    ): Promise<{ signature: TransactionSignature }>;
    signMessage(message: Uint8Array): Promise<{ signature: Uint8Array }>;
}

interface ExodusWindow extends Window {
    exodus?: {
        solana?: ExodusWallet;
    };
}

declare const window: ExodusWindow;

export interface ExodusWalletAdapterConfig {}

export const ExodusWalletName = 'Exodus' as WalletName<'Exodus'>;

export class ExodusWalletAdapter extends BaseMessageSignerWalletAdapter {
    name = ExodusWalletName;
    url = 'https://www.exodus.com/browser-extension';
    icon =
        'data:image/svg+xml;base64,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';

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

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

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

    get publicKey() {
        return this._publicKey;
    }

    get connecting() {
        return this._connecting;
    }

    get connected() {
        return !!this._wallet?.isConnected;
    }

    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.exodus!.solana!;

            if (!wallet.isConnected) {
                try {
                    await wallet.connect();
                } catch (error: any) {
                    throw new WalletConnectionError(error?.message, error);
                }
            }

            if (!wallet.publicKey) throw new WalletAccountError();

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

            wallet.on('disconnect', this._disconnected);

            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> {
        const wallet = this._wallet;
        if (wallet) {
            wallet.off('disconnect', this._disconnected);

            this._wallet = null;
            this._publicKey = null;

            try {
                await wallet.disconnect();
            } catch (error: any) {
                this.emit('error', new WalletDisconnectionError(error?.message, error));
            }
        }

        this.emit('disconnect');
    }

    async sendTransaction(
        transaction: Transaction,
        connection: Connection,
        options: SendTransactionOptions = {}
    ): Promise<TransactionSignature> {
        try {
            const wallet = this._wallet;
            if (!wallet) throw new WalletNotConnectedError();

            try {
                const { signers, ...sendOptions } = options;

                transaction = await this.prepareTransaction(transaction, connection, sendOptions);

                signers?.length && transaction.partialSign(...signers);

                sendOptions.preflightCommitment = sendOptions.preflightCommitment || connection.commitment;

                const { signature } = await wallet.signAndSendTransaction(transaction, sendOptions);
                return signature;
            } catch (error: any) {
                if (error instanceof WalletError) throw error;
                throw new WalletSendTransactionError(error?.message, error);
            }
        } catch (error: any) {
            this.emit('error', error);
            throw error;
        }
    }

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

            try {
                return await wallet.signTransaction(transaction);
            } catch (error: any) {
                throw new WalletSignTransactionError(error?.message, error);
            }
        } catch (error: any) {
            this.emit('error', error);
            throw error;
        }
    }

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

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

    private _disconnected = () => {
        const wallet = this._wallet;
        if (wallet) {
            wallet.off('disconnect', this._disconnected);

            this._wallet = null;
            this._publicKey = null;

            this.emit('error', new WalletDisconnectedError());
            this.emit('disconnect');
        }
    };
}
