const _ = require('lodash');

const { indentString, getValueString, getKeyString } = require('./utils');

const enabled = (items = []) => items.filter((item) => item.enabled);
const disabled = (items = []) => items.filter((item) => !item.enabled);

// remove the last line if two new lines are found
const stripLastLine = (text) => {
  if (!text || !text.length) return text;

  return text.replace(/(\r?\n)$/, '');
};

const jsonToCollectionBru = (json) => {
  const { meta, query, headers, auth, script, tests, vars, docs } = json;

  let bru = '';

  if (meta) {
    bru += 'meta {\n';
    for (const key in meta) {
      bru += `  ${key}: ${meta[key]}\n`;
    }
    bru += '}\n\n';
  }

  if (query && query.length) {
    bru += 'query {';
    if (enabled(query).length) {
      bru += `\n${indentString(
        enabled(query)
          .map((item) => `${getKeyString(item.name)}: ${getValueString(item.value)}`)
          .join('\n')
      )}`;
    }

    if (disabled(query).length) {
      bru += `\n${indentString(
        disabled(query)
          .map((item) => `~${getKeyString(item.name)}: ${getValueString(item.value)}`)
          .join('\n')
      )}`;
    }

    bru += '\n}\n\n';
  }

  if (headers && headers.length) {
    bru += 'headers {';
    if (enabled(headers).length) {
      bru += `\n${indentString(
        enabled(headers)
          .map((item) => `${getKeyString(item.name)}: ${getValueString(item.value)}`)
          .join('\n')
      )}`;
    }

    if (disabled(headers).length) {
      bru += `\n${indentString(
        disabled(headers)
          .map((item) => `~${getKeyString(item.name)}: ${getValueString(item.value)}`)
          .join('\n')
      )}`;
    }

    bru += '\n}\n\n';
  }

  if (auth && auth.mode) {
    bru += `auth {
${indentString(`mode: ${auth.mode}`)}
}

`;
  }

  if (auth && auth.awsv4) {
    bru += `auth:awsv4 {
${indentString(`accessKeyId: ${auth.awsv4.accessKeyId}`)}
${indentString(`secretAccessKey: ${auth.awsv4.secretAccessKey}`)}
${indentString(`sessionToken: ${auth.awsv4.sessionToken}`)}
${indentString(`service: ${auth.awsv4.service}`)}
${indentString(`region: ${auth.awsv4.region}`)}
${indentString(`profileName: ${auth.awsv4.profileName}`)}
}

`;
  }

  if (auth && auth.basic) {
    bru += `auth:basic {
${indentString(`username: ${auth.basic.username}`)}
${indentString(`password: ${auth.basic.password}`)}
}

`;
  }

  if (auth && auth.wsse) {
    bru += `auth:wsse {
${indentString(`username: ${auth.wsse.username}`)}
${indentString(`password: ${auth.wsse.password}`)}
}

`;
  }

  if (auth && auth.bearer) {
    bru += `auth:bearer {
${indentString(`token: ${auth.bearer.token}`)}
}

`;
  }

  if (auth && auth.digest) {
    bru += `auth:digest {
${indentString(`username: ${auth.digest.username}`)}
${indentString(`password: ${auth.digest.password}`)}
}

`;
  }

  if (auth && auth.ntlm) {
    bru += `auth:ntlm {
${indentString(`username: ${auth.ntlm.username}`)}
${indentString(`password: ${auth.ntlm.password}`)}
${indentString(`domain: ${auth.ntlm.domain}`)}

}

`;
  }

  if (auth && auth.apikey) {
    bru += `auth:apikey {
${indentString(`key: ${auth?.apikey?.key || ''}`)}
${indentString(`value: ${auth?.apikey?.value || ''}`)}
${indentString(`placement: ${auth?.apikey?.placement || ''}`)}
}
`;
  }

  if (auth && auth.oauth2) {
    switch (auth?.oauth2?.grantType) {
      case 'password':
        bru += `auth:oauth2 {
${indentString(`grant_type: password`)}
${indentString(`access_token_url: ${auth?.oauth2?.accessTokenUrl || ''}`)}
${indentString(`refresh_token_url: ${auth?.oauth2?.refreshTokenUrl || ''}`)}
${indentString(`username: ${auth?.oauth2?.username || ''}`)}
${indentString(`password: ${auth?.oauth2?.password || ''}`)}
${indentString(`client_id: ${auth?.oauth2?.clientId || ''}`)}
${indentString(`client_secret: ${auth?.oauth2?.clientSecret || ''}`)}
${indentString(`scope: ${auth?.oauth2?.scope || ''}`)}
${indentString(`credentials_placement: ${auth?.oauth2?.credentialsPlacement || ''}`)}
${indentString(`credentials_id: ${auth?.oauth2?.credentialsId || ''}`)}
${indentString(`token_placement: ${auth?.oauth2?.tokenPlacement || ''}`)}${
  auth?.oauth2?.tokenPlacement == 'header' ? '\n' + indentString(`token_header_prefix: ${auth?.oauth2?.tokenHeaderPrefix || ''}`) : ''
}${
  auth?.oauth2?.tokenPlacement !== 'header' ? '\n' + indentString(`token_query_key: ${auth?.oauth2?.tokenQueryKey || ''}`) : ''
}
${indentString(`auto_fetch_token: ${(auth?.oauth2?.autoFetchToken ?? true).toString()}`)}
${indentString(`auto_refresh_token: ${(auth?.oauth2?.autoRefreshToken ?? false).toString()}`)}
}

`;
        break;
      case 'authorization_code':
        bru += `auth:oauth2 {
${indentString(`grant_type: authorization_code`)}
${indentString(`callback_url: ${auth?.oauth2?.callbackUrl || ''}`)}
${indentString(`authorization_url: ${auth?.oauth2?.authorizationUrl || ''}`)}
${indentString(`access_token_url: ${auth?.oauth2?.accessTokenUrl || ''}`)}
${indentString(`refresh_token_url: ${auth?.oauth2?.refreshTokenUrl || ''}`)}
${indentString(`client_id: ${auth?.oauth2?.clientId || ''}`)}
${indentString(`client_secret: ${auth?.oauth2?.clientSecret || ''}`)}
${indentString(`scope: ${auth?.oauth2?.scope || ''}`)}
${indentString(`state: ${auth?.oauth2?.state || ''}`)}
${indentString(`pkce: ${(auth?.oauth2?.pkce || false).toString()}`)}
${indentString(`credentials_placement: ${auth?.oauth2?.credentialsPlacement || ''}`)}
${indentString(`credentials_id: ${auth?.oauth2?.credentialsId || ''}`)}
${indentString(`token_placement: ${auth?.oauth2?.tokenPlacement || ''}`)}${
  auth?.oauth2?.tokenPlacement == 'header' ? '\n' + indentString(`token_header_prefix: ${auth?.oauth2?.tokenHeaderPrefix || ''}`) : ''
}${
  auth?.oauth2?.tokenPlacement !== 'header' ? '\n' + indentString(`token_query_key: ${auth?.oauth2?.tokenQueryKey || ''}`) : ''
}
${indentString(`auto_fetch_token: ${(auth?.oauth2?.autoFetchToken ?? true).toString()}`)}
${indentString(`auto_refresh_token: ${(auth?.oauth2?.autoRefreshToken ?? false).toString()}`)}
}

`;
        break;
      case 'implicit':
        bru += `auth:oauth2 {
${indentString(`grant_type: implicit`)}
${indentString(`callback_url: ${auth?.oauth2?.callbackUrl || ''}`)}
${indentString(`authorization_url: ${auth?.oauth2?.authorizationUrl || ''}`)}
${indentString(`client_id: ${auth?.oauth2?.clientId || ''}`)}
${indentString(`scope: ${auth?.oauth2?.scope || ''}`)}
${indentString(`state: ${auth?.oauth2?.state || ''}`)}
${indentString(`credentials_id: ${auth?.oauth2?.credentialsId || ''}`)}
${indentString(`token_placement: ${auth?.oauth2?.tokenPlacement || ''}`)}${
  auth?.oauth2?.tokenPlacement == 'header' ? '\n' + indentString(`token_header_prefix: ${auth?.oauth2?.tokenHeaderPrefix || ''}`) : ''
}${
  auth?.oauth2?.tokenPlacement !== 'header' ? '\n' + indentString(`token_query_key: ${auth?.oauth2?.tokenQueryKey || ''}`) : ''
}
${indentString(`auto_fetch_token: ${(auth?.oauth2?.autoFetchToken ?? true).toString()}`)}
}

`;
        break;
      case 'client_credentials':
        bru += `auth:oauth2 {
${indentString(`grant_type: client_credentials`)}
${indentString(`access_token_url: ${auth?.oauth2?.accessTokenUrl || ''}`)}
${indentString(`refresh_token_url: ${auth?.oauth2?.refreshTokenUrl || ''}`)}
${indentString(`client_id: ${auth?.oauth2?.clientId || ''}`)}
${indentString(`client_secret: ${auth?.oauth2?.clientSecret || ''}`)}
${indentString(`scope: ${auth?.oauth2?.scope || ''}`)}
${indentString(`credentials_placement: ${auth?.oauth2?.credentialsPlacement || ''}`)}
${indentString(`credentials_id: ${auth?.oauth2?.credentialsId || ''}`)}
${indentString(`token_placement: ${auth?.oauth2?.tokenPlacement || ''}`)}${
  auth?.oauth2?.tokenPlacement == 'header' ? '\n' + indentString(`token_header_prefix: ${auth?.oauth2?.tokenHeaderPrefix || ''}`) : ''
}${
  auth?.oauth2?.tokenPlacement !== 'header' ? '\n' + indentString(`token_query_key: ${auth?.oauth2?.tokenQueryKey || ''}`) : ''
}
${indentString(`auto_fetch_token: ${(auth?.oauth2?.autoFetchToken ?? true).toString()}`)}
${indentString(`auto_refresh_token: ${(auth?.oauth2?.autoRefreshToken ?? false).toString()}`)}
}

`;
        break;
    }

    if (auth?.oauth2?.additionalParameters) {
      const { authorization: authorizationParams, token: tokenParams, refresh: refreshParams } = auth?.oauth2?.additionalParameters;
      const authorizationHeaders = authorizationParams?.filter((p) => p?.sendIn == 'headers');
      if (authorizationHeaders?.length) {
        bru += `auth:oauth2:additional_params:auth_req:headers {
${indentString(
  authorizationHeaders
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n')
)}
}

`;
      }
      const authorizationQueryParams = authorizationParams?.filter((p) => p?.sendIn == 'queryparams');
      if (authorizationQueryParams?.length) {
        bru += `auth:oauth2:additional_params:auth_req:queryparams {
${indentString(
  authorizationQueryParams
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n')
)}
}

`;
      }
      const tokenHeaders = tokenParams?.filter((p) => p?.sendIn == 'headers');
      if (tokenHeaders?.length) {
        bru += `auth:oauth2:additional_params:access_token_req:headers {
${indentString(
  tokenHeaders
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n')
)}
}

`;
      }
      const tokenQueryParams = tokenParams?.filter((p) => p?.sendIn == 'queryparams');
      if (tokenQueryParams?.length) {
        bru += `auth:oauth2:additional_params:access_token_req:queryparams {
${indentString(
  tokenQueryParams
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n'))}
}

`;
      }
      const tokenBodyValues = tokenParams?.filter((p) => p?.sendIn == 'body');
      if (tokenBodyValues?.length) {
        bru += `auth:oauth2:additional_params:access_token_req:body {
${indentString(
  tokenBodyValues
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n')
)}
}

`;
      }
      const refreshHeaders = refreshParams?.filter((p) => p?.sendIn == 'headers');
      if (refreshHeaders?.length) {
        bru += `auth:oauth2:additional_params:refresh_token_req:headers {
${indentString(
  refreshHeaders
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n')
)}
}

`;
      }
      const refreshQueryParams = refreshParams?.filter((p) => p?.sendIn == 'queryparams');
      if (refreshQueryParams?.length) {
        bru += `auth:oauth2:additional_params:refresh_token_req:queryparams {
${indentString(
  refreshQueryParams
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n')
)}
}

`;
      }
      const refreshBodyValues = refreshParams?.filter((p) => p?.sendIn == 'body');
      if (refreshBodyValues?.length) {
        bru += `auth:oauth2:additional_params:refresh_token_req:body {
${indentString(
  refreshBodyValues
    .filter((item) => item?.name?.length)
    .map((item) => `${item.enabled ? '' : '~'}${getKeyString(item.name)}: ${getValueString(item.value)}`)
    .join('\n')
)}
}

`;
      }
    }
  }

  let reqvars = _.get(vars, 'req');
  let resvars = _.get(vars, 'res');
  if (reqvars && reqvars.length) {
    const varsEnabled = _.filter(reqvars, (v) => v.enabled && !v.local);
    const varsDisabled = _.filter(reqvars, (v) => !v.enabled && !v.local);
    const varsLocalEnabled = _.filter(reqvars, (v) => v.enabled && v.local);
    const varsLocalDisabled = _.filter(reqvars, (v) => !v.enabled && v.local);

    bru += `vars:pre-request {`;

    if (varsEnabled.length) {
      bru += `\n${indentString(varsEnabled.map((item) => `${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    if (varsLocalEnabled.length) {
      bru += `\n${indentString(varsLocalEnabled.map((item) => `@${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    if (varsDisabled.length) {
      bru += `\n${indentString(varsDisabled.map((item) => `~${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    if (varsLocalDisabled.length) {
      bru += `\n${indentString(varsLocalDisabled.map((item) => `~@${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    bru += '\n}\n\n';
  }
  if (resvars && resvars.length) {
    const varsEnabled = _.filter(resvars, (v) => v.enabled && !v.local);
    const varsDisabled = _.filter(resvars, (v) => !v.enabled && !v.local);
    const varsLocalEnabled = _.filter(resvars, (v) => v.enabled && v.local);
    const varsLocalDisabled = _.filter(resvars, (v) => !v.enabled && v.local);

    bru += `vars:post-response {`;

    if (varsEnabled.length) {
      bru += `\n${indentString(varsEnabled.map((item) => `${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    if (varsLocalEnabled.length) {
      bru += `\n${indentString(varsLocalEnabled.map((item) => `@${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    if (varsDisabled.length) {
      bru += `\n${indentString(varsDisabled.map((item) => `~${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    if (varsLocalDisabled.length) {
      bru += `\n${indentString(varsLocalDisabled.map((item) => `~@${item.name}: ${getValueString(item.value)}`).join('\n'))}`;
    }

    bru += '\n}\n\n';
  }

  if (script && script.req && script.req.length) {
    bru += `script:pre-request {
${indentString(script.req)}
}

`;
  }

  if (script && script.res && script.res.length) {
    bru += `script:post-response {
${indentString(script.res)}
}

`;
  }

  if (tests && tests.length) {
    bru += `tests {
${indentString(tests)}
}

`;
  }

  if (docs && docs.length) {
    bru += `docs {
${indentString(docs)}
}

`;
  }

  return stripLastLine(bru);
};

module.exports = jsonToCollectionBru;