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

interface BitgetWallet {
    isBitKeep?: boolean;
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    getAccount(): Promise<string>;
    signTransaction(transaction: Transaction): Promise<Transaction>;
    signAllTransactions(transactions: Transaction[]): Promise<Transaction[]>;
    signMessage(message: Uint8Array): Promise<{ signature: Uint8Array }>;
}

interface BitgetWindow extends Window {
    bitkeep?: {
        solana?: BitgetWallet;
    };
}

declare const window: BitgetWindow;

export interface BitgetWalletAdapterConfig {}

export const BitgetWalletName = 'Bitget' as WalletName<'Bitget'>;

export class BitgetWalletAdapter extends BaseMessageSignerWalletAdapter {
    name = BitgetWalletName;
    url = 'https://web3.bitget.com';
    icon =
        'data:image/svg+xml;base64,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';
    readonly supportedTransactionVersions = null;

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

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

        if (this._readyState !== WalletReadyState.Unsupported) {
            scopePollingDetectionStrategy(() => {
                if (window.bitkeep?.solana?.isBitKeep) {
                    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.bitkeep!.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> {
        const wallet = this._wallet;
        if (wallet) {
            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 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 signature;
            } catch (error: any) {
                throw new WalletSignTransactionError(error?.message, error);
            }
        } catch (error: any) {
            this.emit('error', error);
            throw error;
        }
    }
}

/**
 * @deprecated Use 'BitgetWalletName' instead."
 */
export const BitKeepWalletName = BitgetWalletName;

/**
 * @deprecated Use 'BitgetWalletAdapterConfig' instead."
 */
export type BitKeepWalletAdapterConfig = BitgetWalletAdapterConfig;

/**
 * @deprecated Use 'BitgetWalletAdapter' instead."
 */
export const BitKeepWalletAdapter = BitgetWalletAdapter;