/*
 * SonarQube
 * Copyright (C) 2009-2024 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
import { generateToken, getTokens } from '../api/user-tokens';
import { getHostUrl } from '../helpers/urls';
import { Ide } from '../types/sonarlint';
import { NewUserToken, TokenExpiration } from '../types/token';
import { UserBase } from '../types/users';
import { checkStatus, isSuccessStatus } from './request';
import {
  computeTokenExpirationDate,
  getAvailableExpirationOptions,
  getNextTokenName,
} from './tokens';

export const SONARLINT_PORT_START = 64120;
export const SONARLINT_PORT_RANGE = 11;

export async function probeSonarLintServers(): Promise<Array<Ide>> {
  const probedPorts = buildPortRange();

  const probeRequests = probedPorts.map((p) =>
    fetch(buildSonarLintEndpoint(p, '/status'))
      .then((r) => r.json())
      .then((json) => {
        const { description, ideName, needsToken } = json;

        return { description, ideName, needsToken, port: p } as Ide;
      })
      .catch(() => undefined),
  );

  const results = await Promise.all(probeRequests);

  return results.filter((r) => r !== undefined) as Ide[];
}

export function openHotspot(calledPort: number, projectKey: string, hotspotKey: string) {
  const showUrl = new URL(buildSonarLintEndpoint(calledPort, '/hotspots/show'));

  showUrl.searchParams.set('server', getHostUrl());
  showUrl.searchParams.set('project', projectKey);
  showUrl.searchParams.set('hotspot', hotspotKey);

  return fetch(showUrl.toString()).then((response: Response) => checkStatus(response, true));
}

const computeSonarLintTokenExpirationDate = async () => {
  const options = await getAvailableExpirationOptions();
  const maxOption = options[options.length - 1];

  return computeTokenExpirationDate(maxOption.value || TokenExpiration.OneYear);
};

const getNextAvailableSonarLintTokenName = async ({
  ideName,
  login,
}: {
  ideName: string;
  login: string;
}) => {
  const tokens = await getTokens(login);

  return getNextTokenName(`SonarLint-${ideName}`, tokens);
};

export const generateSonarLintUserToken = async ({
  ideName,
  login,
}: {
  ideName: string;
  login: UserBase['login'];
}) => {
  const name = await getNextAvailableSonarLintTokenName({ ideName, login });
  const expirationDate = await computeSonarLintTokenExpirationDate();

  return generateToken({ expirationDate, login, name });
};

export function openIssue({
  branchName,
  calledPort,
  issueKey,
  projectKey,
  pullRequestID,
  tokenName,
  tokenValue,
}: {
  branchName?: string;
  calledPort: number;
  issueKey: string;
  projectKey: string;
  pullRequestID?: string;
  tokenName?: string;
  tokenValue?: string;
}) {
  const showUrl = new URL(buildSonarLintEndpoint(calledPort, '/issues/show'));

  showUrl.searchParams.set('server', getHostUrl());
  showUrl.searchParams.set('project', projectKey);
  showUrl.searchParams.set('issue', issueKey);

  if (branchName !== undefined) {
    showUrl.searchParams.set('branch', branchName);
  }

  if (pullRequestID !== undefined) {
    showUrl.searchParams.set('pullRequest', pullRequestID);
  }

  if (tokenName !== undefined && tokenValue !== undefined) {
    showUrl.searchParams.set('tokenName', tokenName);
    showUrl.searchParams.set('tokenValue', tokenValue);
  }

  return fetch(showUrl.toString()).then((response: Response) => checkStatus(response, true));
}

export function portIsValid(port: number) {
  return port >= SONARLINT_PORT_START && port < SONARLINT_PORT_START + SONARLINT_PORT_RANGE;
}

export async function sendUserToken(port: number, token: NewUserToken) {
  const tokenUrl = buildSonarLintEndpoint(port, '/token');

  const data = {
    login: token.login,
    name: token.name,
    createdAt: token.createdAt,
    expirationDate: token.expirationDate,
    token: token.token,
    type: token.type,
  };

  const response = await fetch(tokenUrl, { method: 'POST', body: JSON.stringify(data) });

  if (!isSuccessStatus(response.status)) {
    const content = await response.text();

    throw new Error(`${response.status} ${response.statusText}. ${content}`);
  }
}

/**
 * @returns [ start , ... , start + size - 1 ]
 */
export function buildPortRange(start = SONARLINT_PORT_START, size = SONARLINT_PORT_RANGE) {
  return Array.from(Array(size).keys()).map((p) => start + p);
}

function buildSonarLintEndpoint(port: number, path: string) {
  return `http://localhost:${port}/sonarlint/api${path}`;
}