//
// Copyright (C) Stanislaw Adaszewski, 2020
// Contact: s.adaszewski@gmail.com
// Website: https://adared.ch/wba
// License: GNU Affero General Public License, Version 3
//

import makeArvadosRequest from 'make-arvados-request';
import wbUuidsToCwl from 'wb-uuids-to-cwl';

function wbParseWorkflowInputs(workflowDefinition, userInputs, errors) {
  // first see if all inputs are parseable
  const inputs = {};

  const main = workflowDefinition['$graph'].find(a => (a.id === '#main'));

  for (let k in userInputs) {
    try {
      let val = jsyaml.safeLoad(userInputs[k]);
      val = wbUuidsToCwl(val);
      k = k.split('/').slice(1).join('/');
      inputs[k] = (val === undefined ? null : val);
    } catch (exc) {
      errors.push('Error parsing ' + k + ': ' + exc.message);
    }
  }

  return inputs;
}

function ensureSubProject(arvHost, arvToken, projectUuid) {
  const filters = [
    [ 'group_class', '=', 'project' ],
    [ 'owner_uuid', '=', projectUuid ],
    [ 'properties.type', '=', 'daily_process_subproject_container' ]
  ];

  let prom = makeArvadosRequest(arvHost, arvToken,
    '/arvados/v1/groups?filters=' + encodeURIComponent(JSON.stringify(filters)));

  prom = prom.then(xhr => {
    if (xhr.response.items.length === 0) {
      let prom_1 = new Promise(accept => accept());
      prom_1 = prom_1.then(() => makeArvadosRequest(arvHost, arvToken,
        '/arvados/v1/groups', { method: 'POST',
        data: JSON.stringify({ owner_uuid: projectUuid,
          group_class: 'project',
          name: 'Container for daily sub-projects for processes',
          properties: { type: 'daily_process_subproject_container' } }) }));
      prom_1 = prom_1.then(xhr_1 => xhr_1.response.uuid);
      return prom_1;
    }
    return xhr.response.items[0].uuid;
  });

  let date = new Date();
  date = (date.getYear() + 1900) + '-' +
    ('00' + (date.getMonth() + 1)).slice(-2) + '-' +
    ('00' + date.getDate()).slice(-2);

  let containerUuid;

  prom = prom.then(uuid => {
    containerUuid = uuid;

    const filters_1 = [
      [ 'group_class', '=', 'project'],
      [ 'owner_uuid', '=', containerUuid ],
      [ 'properties.type', '=', 'daily_process_subproject' ],
      [ 'properties.date', '=', date ]
    ];

    return makeArvadosRequest(arvHost, arvToken,
      '/arvados/v1/groups?filters=' + encodeURIComponent(JSON.stringify(filters_1)));
  });

  prom = prom.then(xhr => {
    if (xhr.response.items.length === 0) {
      let prom_1 = new Promise(accept => accept());
      prom_1 = prom_1.then(() => makeArvadosRequest(arvHost, arvToken,
        '/arvados/v1/groups', { method: 'POST',
        data: JSON.stringify({ owner_uuid: containerUuid,
          group_class: 'project',
          name: 'Daily processes sub-project for ' + date,
          properties: { type: 'daily_process_subproject', date } }) }));
      prom_1 = prom_1.then(xhr => xhr.response.uuid);
      return prom_1;
    }
    return xhr.response.items[0].uuid;
  });
  return prom;
}

// params:
//   arvHost, arvToken, inputs,
//   projectUuid, workflowDefinition, workflowUuid
//   processName, processDescription, placeInSubProject
function wbSubmitContainerRequest(params) {

  const { workflowDefinition, workflowUuid,
    processName, processDescription, inputs,
    arvHost, arvToken,
    placeInSubProject } = params;

  let { projectUuid } = params;

  let prom = new Promise(accept => accept());

  if (placeInSubProject) {
    prom = prom.then(() => ensureSubProject(arvHost, arvToken, projectUuid));
    prom = prom.then(subProjUuid => (projectUuid = subProjUuid));
  }

  prom = prom.then(() => {
    // prepare a request
    const req = {
      name: processName,
      description: processDescription,
      owner_uuid: projectUuid,
      container_image: 'arvados/jobs',
      properties: {
        template_uuid: workflowUuid
      },
      runtime_constraints: {
        API: true,
        vcpus: 1,
        ram: 1073741824
      },
      cwd: '/var/spool/cwl',
      command: [
        'arvados-cwl-runner',
        '--local',
        '--api=containers',
        '--project-uuid=' + projectUuid,
        '--collection-cache-size=256',
        '/var/lib/cwl/workflow.json#main',
        '/var/lib/cwl/cwl.input.json'],
      output_path: '/var/spool/cwl',
      priority: 1,
      state: 'Committed',
      mounts: {
        'stdout': {
          kind: 'file',
          path: '/var/spool/cwl/cwl.output.json'
        },
        '/var/spool/cwl': {
          kind: 'collection',
          writable: true
        },
        '/var/lib/cwl/workflow.json': {
          kind: 'json',
          content: workflowDefinition
        },
        '/var/lib/cwl/cwl.input.json': {
          kind: 'json',
          content: inputs
        }
      }
    };

    return makeArvadosRequest(arvHost, arvToken,
      '/arvados/v1/container_requests',
      { method: 'POST', data: JSON.stringify(req) });
  });

  return prom;
}

export { wbParseWorkflowInputs, wbSubmitContainerRequest };