import { getBitBucketAccessToken } from './utils';
import { getConfigAsync } from './setup';
import { logger, LogMessageType } from './logger';
import * as request from 'request';

export function sendSuccessStatus(build: any, buildId: number): Promise<void> {
  return getConfigAsync()
    .then(config => {
      if (build.repository && build.repository.access_token) {
        if (build.repository.github_id) {
          let sha = build.data.after || build.data.pull_request && build.data.pull_request.head.sha ||
            build.data.sha;
          let name = build.repository.full_name;
          let gitUrl = null;
          if (build.repository.api_url && build.repository.api_url !== '') {
            gitUrl = build.repository.api_url + `/repos/${name}/statuses/${sha}`;
          } else {
            gitUrl = `https://api.github.com/repos/${name}/statuses/${sha}`;
          }
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setGitHubStatusSuccess(gitUrl, abstruseUrl,
            build.repository.access_token);
        } else if (build.repository.bitbucket_id) {
          let sha = build.data.push.changes[0].commits[0].hash;
          let name = build.data.repository.full_name;
          let gitUrl = `https://api.bitbucket.org/2.0/repositories`
            + `/${name}/commit/${sha}/statuses/build`;
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setBitbucketStatusSuccess(gitUrl, abstruseUrl,
            build.repository.access_token);
        } else if (build.repository.gitlab_id) {
          let id = build.repositories_id ?
            build.repositories_id : build.data.object_attributes.target_repositories_id;
          let sha = build.data.commit && build.data.commit.id || build.data.object_attributes.last_commit.id;
          let gitUrl = null;
          if (build.repository.api_url && build.repository.api_url !== '') {
            gitUrl = `${build.repository.api_url}/projects/${id}/statuses/${sha}`;
          } else {
            gitUrl = `https://gitlab.com/api/v4/projects/${id}/statuses/${sha}`;
          }
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setGitLabStatusSuccess(gitUrl, abstruseUrl,
            build.repository.access_token);
        } else {
          return Promise.resolve();
        }
      } else {
        let name = build.repository && build.repository.full_name ||
          build.data.repository.full_name;
        let msg: LogMessageType = {
          message: `[error]: repository: ${name} => access token is not set`,
          type: 'error',
          notify: true
        };
        logger.next(msg);
      }
    });
}

export function sendPendingStatus(buildData: any, buildId: number): Promise<void> {
  return getConfigAsync()
    .then(config => {
      if (buildData.repository && buildData.repository.access_token) {
        if (buildData.repository.github_id) {
          let sha = buildData.data.after || buildData.data.pull_request &&
            buildData.data.pull_request.head.sha || buildData.data.sha;
          let name = buildData.repository.full_name;
          let gitUrl = null;
          if (buildData.repository.api_url && buildData.repository.api_url !== '') {
            gitUrl = buildData.repository.api_url + `/repos/${name}/statuses/${sha}`;
          } else {
            gitUrl = `https://api.github.com/repos/${name}/statuses/${sha}`;
          }
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setGitHubStatusPending(gitUrl, abstruseUrl, buildData.repository.access_token);
        } else if (buildData.repository.bitbucket_id) {
          let sha = buildData.data.push.changes[0].commits[0].hash;
          let name = buildData.data.repository.full_name;
          let gitUrl = `https://api.bitbucket.org/2.0/repositories`
            + `/${name}/commit/${sha}/statuses/build`;
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setBitbucketStatusPending(gitUrl, abstruseUrl, buildData.repository.access_token);
        } else if (buildData.repository.gitlab_id) {
          let id = buildData.repositories_id ?
            buildData.repositories_id : buildData.data.object_attributes.target_repositories_id;
          let sha = buildData.data.commit && buildData.data.commit.id || buildData.data.object_attributes.last_commit.id;
          let gitUrl = null;
          if (buildData.repository.api_url && buildData.repository.api_url !== '') {
            gitUrl = `${buildData.repository.api_url}/projects/${id}/statuses/${sha}`;
          } else {
            gitUrl = `https://gitlab.com/api/v4/projects/${id}/statuses/${sha}`;
          }
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setGitLabStatusPending(gitUrl, abstruseUrl, buildData.repository.access_token);
        } else {
          return Promise.resolve();
        }
      } else {
        let name = buildData.repository && (buildData.repository.full_name ||
          buildData.data.repository.full_name);
        let msg: LogMessageType = {
          message: `[error]: repository: ${name} => access token is not set`,
          type: 'error',
          notify: true
        };
        logger.next(msg);
      }
    });
}

export function sendFailureStatus(buildData: any, buildId: number): Promise<void> {
  return getConfigAsync()
    .then(config => {
      if (buildData.repository && buildData.repository.access_token) {
        if (buildData.repository.github_id) {
          let sha = buildData.data.after || buildData.data.pull_request &&
            buildData.data.pull_request.head.sha || buildData.data.sha;
          let name = buildData.repository.full_name;
          let gitUrl = null;
          if (buildData.repository.api_url && buildData.repository.api_url !== '') {
            gitUrl = buildData.repository.api_url + `/repos/${name}/statuses/${sha}`;
          } else {
            gitUrl = `https://api.github.com/repos/${name}/statuses/${sha}`;
          }
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setGitHubStatusFailure(gitUrl, abstruseUrl, buildData.repository.access_token);
        } else if (buildData.repository.bitbucket_id) {
          let sha = buildData.data.push.changes[0].commits[0].hash;
          let name = buildData.data.repository.full_name;
          let gitUrl = `https://api.bitbucket.org/2.0/repositories`
            + `/${name}/commit/${sha}/statuses/build`;
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setBitbucketStatusFailure(gitUrl, abstruseUrl, buildData.repository.access_token);
        } else if (buildData.repository.gitlab_id) {
          let id = buildData.repositories_id ?
            buildData.repositories_id : buildData.data.object_attributes.target_repositories_id;
          let sha = buildData.data.commit && buildData.data.commit.id || buildData.data.object_attributes.last_commit.id;
          let gitUrl = null;
          if (buildData.repository.api_url && buildData.repository.api_url !== '') {
            gitUrl = `${buildData.repository.api_url}/projects/${id}/statuses/${sha}`;
          } else {
            gitUrl = `https://gitlab.com/api/v4/projects/${id}/statuses/${sha}`;
          }
          let abstruseUrl = `${config.url}/build/${buildId}`;

          return setGitLabStatusFailure(gitUrl, abstruseUrl, buildData.repository.access_token);
        } else {
          return Promise.resolve();
        }
      } else {
        let name = buildData.repository && buildData.repository.full_name ||
          buildData.data.repository.full_name;
        let msg: LogMessageType = {
          message: `[error]: repository: ${name} => access token is not set`,
          type: 'error',
          notify: true
        };
        logger.next(msg);
      }
    });
}

function setGitHubStatusSuccess(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'success',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build succeeded',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'Authorization': `token ${token}`,
    'User-Agent': 'Abstruse'
  };

  return sendRequest(gitUrl, data, header);
}

function setGitHubStatusPending(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'pending',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build is running',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'Authorization': `token ${token}`,
    'User-Agent': 'Abstruse'
  };

  return sendRequest(gitUrl, data, header);
}

function setGitHubStatusError(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'error',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build errored',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'Authorization': `token ${token}`,
    'User-Agent': 'Abstruse'
  };

  return sendRequest(gitUrl, data, header);
}

function setGitHubStatusFailure(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'failure',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build failed',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'Authorization': `token ${token}`,
    'User-Agent': 'Abstruse'
  };

  return sendRequest(gitUrl, data, header);
}

function setGitLabStatusSuccess(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'success',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build succeeded',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'PRIVATE-TOKEN': token
  };

  return sendRequest(gitUrl, data, header);
}

function setGitLabStatusPending(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'pending',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build is running',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'PRIVATE-TOKEN': token
  };

  return sendRequest(gitUrl, data, header);
}

function setGitLabStatusError(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'error',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build errored',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'PRIVATE-TOKEN': token
  };

  return sendRequest(gitUrl, data, header);
}

function setGitLabStatusFailure(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  let data = {
    'state': 'failure',
    'target_url': abstruseUrl,
    'description': 'The Abstruse CI build failed',
    'context': 'continuous-integration/abstruse'
  };

  let header = {
    'PRIVATE-TOKEN': token
  };

  return sendRequest(gitUrl, data, header);
}

function setBitbucketStatusSuccess(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  return getBitBucketAccessToken(token)
    .then(response => {
      let access_token = response.access_token;
      let statusData = {
        'state': 'SUCCESSFUL',
        'url': abstruseUrl,
        'description': 'The Abstruse CI build succeeded',
        'name': 'continuous-integration/abstruse',
        'key': 'continuous-integration/abstruse'
      };

      let header = {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${access_token}`
      };

      return sendRequest(gitUrl, statusData, header);
    })
    .catch(err => Promise.reject(err));
}

function setBitbucketStatusPending(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  return getBitBucketAccessToken(token)
    .then(response => {
      let access_token = response.access_token;
      let statusData = {
        'state': 'INPROGRESS',
        'url': abstruseUrl,
        'description': 'The Abstruse CI build is running',
        'name': 'continuous-integration/abstruse',
        'key': 'continuous-integration/abstruse'
      };

      let header = {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${access_token}`
      };

      return sendRequest(gitUrl, statusData, header);
    })
    .catch(err => Promise.reject(err));
}

function setBitbucketStatusFailure(
  gitUrl: string, abstruseUrl: string, token: string
): Promise<any> {
  return getBitBucketAccessToken(token)
    .then(response => {
      let access_token = response.access_token;
      let statusData = {
        'state': 'FAILED',
        'url': abstruseUrl,
        'description': 'The Abstruse CI build failed',
        'name': 'continuous-integration/abstruse',
        'key': 'continuous-integration/abstruse'
      };

      let header = {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${access_token}`
      };

      return sendRequest(gitUrl, statusData, header);
    })
    .catch(err => Promise.reject(err));
}

function sendRequest(url: string, data: any, headers: any): Promise<any> {
  return new Promise((resolve, reject) => {
    let options = {
      url: url,
      method: 'POST',
      headers: headers,
      json: data
    };

    request(options, (err, response, body) => {
      if (err) {
        let msg: LogMessageType = {
          message: `[http]: request to ${url} failed with code ${err}`,
          type: 'error',
          notify: false
        };
        logger.next(msg);

        resolve(err);
      } else {
        if (response.statusCode < 300 && response.statusCode >= 200) {
          let msg: LogMessageType = {
            message: `[http]: request to ${url} successful`,
            type: 'info',
            notify: false
          };
          logger.next(msg);

          resolve(body);
        } else {
          let msg: LogMessageType = {
            message: `[http]: request to ${url} failed with error code ${response.statusCode}`,
            type: 'error',
            notify: false
          };
          logger.next(msg);

          resolve({
            statusCode: response.statusCode,
            response: body
          });
        }
      }
    });
  });
}