import AsyncStorage from '@react-native-community/async-storage';
import RNFetchBlob from 'rn-fetch-blob';
import {
  CHECK_MOMENT_UPLOAD_DONE_PROCESSING_ENDPOINT,
  MOMENTS_ENDPOINT,
  MOMENTTAG_ENDPOINT,
  MOMENT_TAGS_ENDPOINT,
  MOMENT_THUMBNAIL_ENDPOINT,
  MOMENT_VIEW_COUNT_API,
  PRESIGNED_URL_ENDPOINT,
  TAGG_CUSTOMER_SUPPORT,
} from '../constants';
import {
  ERROR_SOMETHING_WENT_WRONG,
  ERROR_SOMETHING_WENT_WRONG_REFRESH,
} from '../constants/strings';
import {MomentPostType, MomentTagType, PresignedURLResponse} from '../types';
import {checkImageUploadStatus} from '../utils';

export const postMoment = async (
  uri: string,
  caption: string,
  category: string,
) => {
  try {
    const request = new FormData();

    const fileExtension = uri.split('.').pop();
    const extension = fileExtension ? `.${fileExtension}` : '.jpg';

    request.append('image', {
      uri: uri,
      name: Math.random().toString(36).substring(7) + extension,
      type: 'image/jpg',
    });
    request.append('moment', category);
    request.append('captions', JSON.stringify({image: caption}));
    const token = await AsyncStorage.getItem('token');
    let response = await fetch(MOMENTS_ENDPOINT, {
      method: 'POST',
      headers: {
        'Content-Type': 'multipart/form-data',
        Authorization: 'Token ' + token,
      },
      body: request,
    });
    let statusCode = response.status;
    let data: {
      moments: any;
      moment_id: string;
      profile_completion_stage: number;
    } = await response.json();
    if (statusCode === 200 && checkImageUploadStatus(data.moments)) {
      return data;
    }
  } catch (err) {
    console.log(err);
  }
  return undefined;
};

export const patchMoment = async (
  momentId: string,
  caption: string,
  category: string,
  tags: {
    x: number;
    y: number;
    z: number;
    user_id: string;
  }[],
) => {
  try {
    const request = new FormData();
    request.append('moment_id', momentId);
    request.append('caption', caption);
    request.append('category', category);
    request.append('tags', JSON.stringify(tags));
    const token = await AsyncStorage.getItem('token');
    let response = await fetch(MOMENTS_ENDPOINT, {
      method: 'PATCH',
      headers: {
        'Content-Type': 'multipart/form-data',
        Authorization: 'Token ' + token,
      },
      body: request,
    });
    let statusCode = response.status;
    return statusCode === 200 || statusCode === 201;
  } catch (err) {
    console.log(err);
  }
  return false;
};

export const loadMoments = async (userId: string, token: string) => {
  try {
    const response = await fetch(MOMENTS_ENDPOINT + '?user_id=' + userId, {
      method: 'GET',
      headers: {
        Authorization: 'Token ' + token,
      },
    });
    if (response.status === 200) {
      const typedData: MomentPostType[] = await response.json();
      return typedData;
    }
  } catch (err) {
    console.log(err);
  }
  return [];
};

export const deleteMoment = async (momentId: string) => {
  try {
    const token = await AsyncStorage.getItem('token');

    const response = await fetch(MOMENTS_ENDPOINT + `${momentId}/`, {
      method: 'DELETE',
      headers: {
        Authorization: 'Token ' + token,
      },
    });
    return response.status === 200;
  } catch (error) {
    console.log(error);
    console.log('Unable to delete moment', momentId);
    return false;
  }
};

export const loadMomentThumbnail = async (momentId: string) => {
  try {
    const token = await AsyncStorage.getItem('token');
    const response = await RNFetchBlob.config({
      fileCache: false,
      appendExt: 'jpg',
    }).fetch('GET', MOMENT_THUMBNAIL_ENDPOINT + `${momentId}/`, {
      Authorization: 'Token ' + token,
    });
    const status = response.info().status;
    if (status === 200) {
      return response.path();
    } else {
      return undefined;
    }
  } catch (error) {
    console.log(error);
    return undefined;
  }
};

export const loadMomentTags = async (moment_id: string) => {
  try {
    const token = await AsyncStorage.getItem('token');
    const response = await fetch(
      MOMENT_TAGS_ENDPOINT + `?moment_id=${moment_id}`,
      {
        method: 'GET',
        headers: {
          Authorization: 'Token ' + token,
        },
      },
    );
    if (response.status === 200) {
      const tags: MomentTagType[] = await response.json();
      return tags;
    }
  } catch (error) {
    console.error(error);
    return [];
  }
};

export const postMomentTags = async (
  moment_id: string,
  tags: {
    x: number;
    y: number;
    z: number;
    user_id: string;
  }[],
) => {
  try {
    const token = await AsyncStorage.getItem('token');
    const form = new FormData();
    form.append('moment_id', moment_id);
    form.append('tags', JSON.stringify(tags));
    const response = await fetch(MOMENTTAG_ENDPOINT, {
      method: 'POST',
      headers: {
        Authorization: 'Token ' + token,
      },
      body: form,
    });
    return response.status === 201 || response.status === 200;
  } catch (error) {
    console.error(error);
    return false;
  }
};

export const deleteMomentTag = async (moment_tag_id: string) => {
  try {
    const token = await AsyncStorage.getItem('token');
    const response = await fetch(MOMENTTAG_ENDPOINT + `${moment_tag_id}/`, {
      method: 'DELETE',
      headers: {
        Authorization: 'Token ' + token,
      },
    });
    return response.status === 200;
  } catch (error) {
    console.error(error);
    return false;
  }
};
/**
 * This function makes a request to the server in order to provide the client with a presigned URL.
 * This is called first, in order for the client to directly upload a file to S3
 * @param value: string | undefined
 * @returns a PresignedURLResponse object
 */
export const handlePresignedURL = async (
  caption: string,
  momentCategory: string,
) => {
  try {
    // TODO: just a random filename for video poc, we should not need to once complete
    const randHash = Math.random().toString(36).substring(7);
    const filename = `pc_${randHash}.mov`;
    const token = await AsyncStorage.getItem('token');
    const response = await fetch(PRESIGNED_URL_ENDPOINT, {
      method: 'POST',
      headers: {
        Authorization: 'Token ' + token,
      },
      body: JSON.stringify({
        filename,
        caption: caption,
        category: momentCategory,
      }),
    });
    const status = response.status;
    let data: PresignedURLResponse = await response.json();
    if (status === 200) {
      return data;
    } else {
      if (status === 404) {
        console.log(
          `Please make sure that the email / username entered is registered with us. You may contact our customer support at ${TAGG_CUSTOMER_SUPPORT}`,
        );
      } else {
        console.log(ERROR_SOMETHING_WENT_WRONG_REFRESH);
      }
      console.log(response);
    }
  } catch (error) {
    console.log(error);
    console.log(ERROR_SOMETHING_WENT_WRONG);
  }
};
/**
 * This util function takes in the file object and the PresignedURLResponse object, creates form data from the latter,
 * and makes a post request to the presigned URL, sending the file object inside of the form data.
 * @param filePath: the path to the file, including filename
 * @param urlObj  PresignedURLResponse | undefined
 * @returns responseURL or boolean
 */
export const handleVideoUpload = async (
  filePath: string,
  urlObj: PresignedURLResponse | undefined,
) => {
  try {
    if (urlObj === null || urlObj === undefined) {
      console.log('Invalid urlObj');
      return false;
    }
    const form = new FormData();
    form.append('key', urlObj.response_url.fields.key);
    form.append(
      'x-amz-algorithm',
      urlObj.response_url.fields['x-amz-algorithm'],
    );
    form.append(
      'x-amz-credential',
      urlObj.response_url.fields['x-amz-credential'],
    );
    form.append('x-amz-date', urlObj.response_url.fields['x-amz-date']);
    form.append('policy', urlObj.response_url.fields.policy);
    form.append(
      'x-amz-signature',
      urlObj.response_url.fields['x-amz-signature'],
    );
    form.append('file', {
      uri: filePath,
      // other types such as 'quicktime' 'image' etc exist, and we can programmatically type this, but for now sticking with simple 'video'
      type: 'video',
      name: urlObj.response_url.fields.key,
    });
    const response = await fetch(urlObj.response_url.url, {
      method: 'POST',
      headers: {
        'Content-Type': 'multipart/form-data',
      },
      body: form,
    });
    const status = response.status;
    if (status === 200 || status === 204) {
      console.log('complete');
      return true;
    } else {
      if (status === 404) {
        console.log(
          `Please make sure that the email / username entered is registered with us. You may contact our customer support at ${TAGG_CUSTOMER_SUPPORT}`,
        );
      } else {
        console.log(ERROR_SOMETHING_WENT_WRONG_REFRESH);
      }
    }
  } catch (error) {
    console.log(error);
    console.log(ERROR_SOMETHING_WENT_WRONG);
  }
  return false;
};

/*
 * Records a view on a moment
 */
export const increaseMomentViewCount = async (moment_id: string) => {
  const token = await AsyncStorage.getItem('token');

  const response = await fetch(MOMENT_VIEW_COUNT_API + `${moment_id}/`, {
    method: 'PATCH',
    headers: {
      Authorization: 'Token ' + token,
    },
  });
  if (response.status === 200) {
    const {view_count} = await response.json();
    return view_count;
  }
  return;
};

export const checkMomentDoneProcessing = async (momentId: string) => {
  try {
    const token = await AsyncStorage.getItem('token');
    const response = await fetch(
      CHECK_MOMENT_UPLOAD_DONE_PROCESSING_ENDPOINT + '?moment_id=' + momentId,
      {
        method: 'GET',
        headers: {
          Authorization: 'Token ' + token,
        },
      },
    );
    return response.status === 200;
  } catch (error) {
    console.error(error);
    return false;
  }
};