import Component from '@ember/component';
import {
  computed, get, observer, set, setProperties
} from '@ember/object';
import { on } from '@ember/object/evented';
import { next } from '@ember/runloop';
import { inject as service } from '@ember/service';
import { isEmpty } from '@ember/utils';
import { coerce, minor } from 'semver';
// import { coerceVersion } from 'shared/utils/parse-version';
import { sortableNumericSuffix } from 'shared/utils/util';
import layout from './template';

export default Component.extend({
  google:          service(),
  serivceVersions: service('version-choices'),
  layout,

  cluster:                         null,
  model:                           null,
  nodeAdvanced:                    false,
  taints:                          null,
  oauthScopesSelection:            null,
  scopeConfig:                     null,
  diskTypeContent:                 null,
  imageTypeContent:                null,
  machineTypes:                    null,
  nodeVersions:                    null,
  controlPlaneVersion:             null,
  upgradeVersion:                  false,

  init() {
    this._super(...arguments);

    const { model } = this;

    setProperties(this, {
      scopeConfig:            {},
      diskTypeContent:        this.google.diskTypes,
      imageTypeContent:       this.google.imageTypesV2,
    });

    if (model) {
      const { taints = [], } = model.config
      let _taints = [];

      if (taints) {
        _taints = taints.map((t = '') => {
          const splitEffect = t.split(':')
          const splitLabel = (splitEffect[1] || '').split('=')

          return {
            effect: splitEffect[0],
            key:    splitLabel[0],
            value:  splitLabel[1],
          }
        });
      }

      set(this, 'taints', _taints)

      if (!get(this, 'oauthScopesSelection')) {
        const oauthScopes = get(model.config, 'oauthScopes')
        const { oauthScopesSelection, scopeConfig } = this.google.unmapOauthScopes(oauthScopes);

        set(this, 'oauthScopesSelection', oauthScopesSelection);
        if (scopeConfig) {
          set(this, 'scopeConfig', scopeConfig);
        }
      }

      if (isEmpty(this?.model?.version) && !isEmpty(this?.cluster?.gkeConfig?.kubernetesVersion)) {
        set(this, 'model.version', this?.cluster?.gkeConfig?.kubernetesVersion);
      }
    } else {
      setProperties(this, {
        oauthScopesSelection: this.google.oauthScopeOptions.DEFAULT,
        scopeConfig:          this.google.defaultScopeConfig,
        labels:               [],
        taints:               [],
      });
    }
  },

  actions: {
    setNodeLabels(section) {
      if (this.isDestroyed || this.isDestroying) {
        return;
      }

      const out = []

      for (let key in section) {
        out.pushObject(`${ key }=${ section[key] }`)
      }

      set(this, 'model.config.labels', out);
    },
  },

  autoscalingChanged: on('init', observer('model.autoscaling.enabled', function() {
    if (this.isDestroyed || this.isDestroying) {
      return;
    }

    const { model: { autoscaling } } = this;

    if (!autoscaling?.enabled) {
      next(this, () => {
        if (this.isDestroyed || this.isDestroying) {
          return;
        }
        if (!isEmpty(autoscaling?.minNodeCount)) {
          set(this, 'model.autoscaling.minNodeCount', 0);
        }

        if (!isEmpty(autoscaling?.maxNodeCount)) {
          set(this, 'model.autoscaling.maxNodeCount', 0);
        }
      });
    }
  })),

  scopeConfigChanged: on('init', observer('scopeConfig', function() {
    if (this.isDestroyed || this.isDestroying) {
      return;
    }

    set(this.model.config, 'oauthScopes', this.google.mapOauthScopes(this.oauthScopesSelection, this.scopeConfig));
  })),

  taintsChanged: on('init', observer('taints.@each.{effect,key,value}', function() {
    if (this.isDestroyed || this.isDestroying) {
      return;
    }

    const taints = this.taints || []

    if (taints.length > 0) {
      set(this.model.config, 'taints', taints.map((t) => {
        return `${ t.effect }:${ t.key }=${ t.value }`
      }))
    } else {
      set(this.model.config, 'taints', [])
    }
  })),

  originalClusterVersion: computed('originalCluster.gkeConfig.kubernetesVersion', 'originalCluster.gkeStatus.upstreamSpec.kubernetesVersion', function() {
    if (!isEmpty(get(this, 'originalCluster.gkeConfig.kubernetesVersion'))) {
      return get(this, 'originalCluster.gkeConfig.kubernetesVersion');
    }

    if (!isEmpty(get(this, 'originalCluster.gkeStatus.upstreamSpec.kubernetesVersion'))) {
      return get(this, 'originalCluster.gkeStatus.upstreamSpec.kubernetesVersion');
    }

    return '';
  }),

  upgradeAvailable: computed('controlPlaneVersion', 'mode', 'model.version', 'originalClusterVersion', function() {
    const clusterVersion         = get(this, 'controlPlaneVersion');
    const nodeVersion            = get(this, 'model.version');

    if (isEmpty(clusterVersion) || isEmpty(nodeVersion)) {
      return false;
    }

    const initalClusterMinorVersion = parseInt(minor(coerce(clusterVersion)), 10);
    const initalNodeMinorVersion   = parseInt(minor(coerce(nodeVersion)), 10);
    const diff                     = initalClusterMinorVersion - initalNodeMinorVersion;

    return diff === 1;
  }),

  editingExistingNodePool: computed('cluster.gkeStatus.upstreamSpec.nodePools.@each.name', 'mode', 'model.name', function() {
    const upstreamNodePools = get(this, 'cluster.gkeStatus.upstreamSpec.nodePools');
    const iExist = (upstreamNodePools || []).findBy('name', this.model?.name || '');

    if (this.mode === 'edit' && !isEmpty(iExist)) {
      return true;
    }

    return false;
  }),

  isNewNodePool: computed('editingExistingNodePool', function() {
    if (this.editingExistingNodePool) {
      return false;
    }

    return true;
  }),

  editedMachineChoice: computed('model.config.machineType', 'machineChoices', function() {
    return get(this, 'machineChoices').findBy('name', get(this, 'model.config.machineType'));
  }),

  machineChoices: computed('machineTypes.[]', function() {
    let out = (get(this, 'machineTypes') || []).slice();

    out.forEach((obj) => {
      setProperties(obj, {
        displayName: `${ obj.name  } (${  obj.description  })`,
        group:       obj.name.split('-')[0],
        sortName:    sortableNumericSuffix(obj.name),
      })
    });

    return out.sortBy('sortName')
  }),

  // versionChoices: computed('nodeVersions.[]', 'controlPlaneVersion', 'mode', function() {
  //   // google gke console allows the node version to be anything less than master version
  //   const {
  //     nodeVersions,
  //     controlPlaneVersion,
  //     mode,
  //   } = this;

  //   const coerceedVersion = coerceVersion(controlPlaneVersion);
  //   const maxVersionRange = `<= ${ coerceedVersion }`;
  //   let newVersions = this.serivceVersions.parseCloudProviderVersionChoices(nodeVersions, controlPlaneVersion, mode, maxVersionRange);

  //   const controlPlaneVersionMatch = newVersions.findBy('value', controlPlaneVersion);

  //   if (!isEmpty(controlPlaneVersionMatch)) {
  //     set(controlPlaneVersionMatch, 'label', `${ controlPlaneVersionMatch.label } (control plane version)`);

  //     set(this, 'model.version', controlPlaneVersionMatch.value);

  //     const indexOfMatch = newVersions.indexOf(controlPlaneVersionMatch);

  //     if (indexOfMatch > 0) {
  //       // gke returns a semver like 1.17.17-gke.2800, 1.17.17-gke.3000
  //       // semver logic sorts these correctly but because we have to coerce the version, all versions in the 1.17.17 comebace
  //       // since they are sorted lets just find our CP master match index and cut everything off before that
  //       newVersions = newVersions.slice(indexOfMatch);
  //     }
  //   }

  //   return newVersions;
  // }),

  shouldUpgradeVersion: on('init', observer('upgradeVersion', function() {
    const { upgradeVersion } = this;
    const clusterVersion           = get(this, 'controlPlaneVersion');
    const nodeVersion              = get(this, 'model.version');

    if (upgradeVersion && clusterVersion !== nodeVersion) {
      set(this, 'model.version', clusterVersion);
    }
  })),

});