//
// Copyright © 2020, 2021 Anticrm Platform Contributors.
// Copyright © 2021 Hardcore Engineering Inc.
//
// Licensed under the Eclipse Public License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
//

import type { Class, Client, Doc, Obj, Ref, Space } from '@anticrm/core'
import core from '@anticrm/core'
import type { Asset } from '@anticrm/platform'
import { getResource } from '@anticrm/platform'
import { NavigatorModel } from '@anticrm/workbench'
import view from '@anticrm/view'
import { closePanel, getCurrentLocation, navigate } from '@anticrm/ui'
import { getClient } from '@anticrm/presentation'

export function classIcon (client: Client, _class: Ref<Class<Obj>>): Asset | undefined {
  return client.getHierarchy().getClass(_class).icon
}
export function getSpecialSpaceClass (model: NavigatorModel): Array<Ref<Class<Space>>> {
  const spaceResult = model.spaces.map((x) => x.spaceClass)
  const result = (model.specials ?? [])
    .map((it) => it.spaceClass)
    .filter((it) => it !== undefined && !spaceResult.includes(it))
  return spaceResult.concat(result as Array<Ref<Class<Space>>>)
}

export async function getSpaceName (client: Client, space: Space): Promise<string> {
  const hierarchy = client.getHierarchy()
  const clazz = hierarchy.getClass(space._class)
  const nameMixin = hierarchy.as(clazz, view.mixin.SpaceName)

  if (nameMixin?.getName !== undefined) {
    const getSpaceName = await getResource(nameMixin.getName)
    const name = await getSpaceName(client, space)

    return name
  }

  return space.name
}

/**
 * @public
 */
export async function doNavigate (
  doc: Doc | Doc[],
  evt: Event | undefined,
  props: {
    mode: 'app' | 'special' | 'space'
    application?: string
    special?: string
    spaceSpecial?: string
    space?: Ref<Space>
    // If no space is selected, select first space from list
    spaceClass?: Ref<Class<Space>>
  }
): Promise<void> {
  evt?.preventDefault()

  closePanel()
  const loc = getCurrentLocation()
  const client = getClient()
  switch (props.mode) {
    case 'app':
      loc.path[1] = props.application ?? ''
      if (props.special !== undefined) {
        loc.path[2] = props.special
        loc.path.length = 3
      } else {
        loc.path.length = 2
      }
      navigate(loc)
      break
    case 'special':
      if (props.application !== undefined && loc.path[1] !== props.application) {
        loc.path[1] = props.application
      }
      loc.path[2] = props.special ?? ''
      loc.path.length = 3
      navigate(loc)
      break
    case 'space': {
      if (props.space !== undefined) {
        loc.path[2] = props.space
      } else {
        if (doc !== undefined && !Array.isArray(doc) && client.getHierarchy().isDerived(doc._class, core.class.Space)) {
          loc.path[2] = doc._id
        }
      }
      if (props.spaceSpecial !== undefined) {
        loc.path[3] = props.spaceSpecial
      }
      if (props.spaceClass !== undefined) {
        const ex = await client.findOne(props.spaceClass, { _id: loc.path[2] as Ref<Space> })
        if (ex === undefined) {
          const r = await client.findOne(props.spaceClass, {})
          if (r !== undefined) {
            loc.path[2] = r._id
          }
        }
      }
      loc.path.length = 4
      navigate(loc)

      break
    }
  }
}