import {
  createContext,
  ReactNode,
  useContext,
  useEffect,
  useState,
} from 'react'
import { byId } from 'utils'
import { MemberInWorkspace, Plan, Workspace, WorkspaceRole } from 'db'
import {
  createNewWorkspace,
  useWorkspaces,
  updateWorkspace as patchWorkspace,
} from 'services/workspace/workspace'
import { useUser } from './UserContext'
import { useTypebot } from './TypebotContext'

export type WorkspaceWithMembers = Workspace & { members: MemberInWorkspace[] }

const workspaceContext = createContext<{
  workspaces?: WorkspaceWithMembers[]
  isLoading: boolean
  workspace?: WorkspaceWithMembers
  canEdit: boolean
  currentRole?: WorkspaceRole
  switchWorkspace: (workspaceId: string) => void
  createWorkspace: (name?: string) => Promise<void>
  updateWorkspace: (
    workspaceId: string,
    updates: Partial<Workspace>
  ) => Promise<void>
  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
  //@ts-ignore
}>({})

export const WorkspaceContext = ({ children }: { children: ReactNode }) => {
  const { user } = useUser()
  const userId = user?.id
  const { typebot } = useTypebot()
  const { workspaces, isLoading, mutate } = useWorkspaces({ userId })
  const [currentWorkspace, setCurrentWorkspace] =
    useState<WorkspaceWithMembers>()

  const canEdit =
    workspaces
      ?.find(byId(currentWorkspace?.id))
      ?.members.find((m) => m.userId === userId)?.role === WorkspaceRole.ADMIN

  const currentRole = currentWorkspace?.members.find(
    (m) => m.userId === userId
  )?.role

  useEffect(() => {
    if (!workspaces || workspaces.length === 0 || currentWorkspace) return
    const lastWorspaceId = localStorage.getItem('workspaceId')
    const defaultWorkspace = lastWorspaceId
      ? workspaces.find(byId(lastWorspaceId))
      : workspaces.find((w) =>
          w.members.some(
            (m) => m.userId === userId && m.role === WorkspaceRole.ADMIN
          )
        )
    setCurrentWorkspace(defaultWorkspace ?? workspaces[0])
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [workspaces?.length])

  useEffect(() => {
    if (!currentWorkspace?.id) return
    localStorage.setItem('workspaceId', currentWorkspace.id)
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [currentWorkspace?.id])

  useEffect(() => {
    if (
      !typebot?.workspaceId ||
      !currentWorkspace ||
      typebot.workspaceId === currentWorkspace.id
    )
      return
    switchWorkspace(typebot.workspaceId)
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [typebot?.workspaceId])

  const switchWorkspace = (workspaceId: string) =>
    setCurrentWorkspace(workspaces?.find(byId(workspaceId)))

  const createWorkspace = async (name?: string) => {
    if (!workspaces) return
    const { data, error } = await createNewWorkspace({
      name: name ? `${name}'s workspace` : 'My workspace',
      plan: Plan.FREE,
    })
    if (error || !data) return
    const { workspace } = data
    const newWorkspace = {
      ...workspace,
      members: [
        {
          role: WorkspaceRole.ADMIN,
          userId: userId as string,
          workspaceId: workspace.id as string,
        },
      ],
    }
    mutate({
      workspaces: [...workspaces, newWorkspace],
    })
    setCurrentWorkspace(newWorkspace)
  }

  const updateWorkspace = async (
    workspaceId: string,
    updates: Partial<Workspace>
  ) => {
    const { data } = await patchWorkspace({ id: workspaceId, ...updates })
    if (!data || !currentWorkspace) return
    setCurrentWorkspace({ ...currentWorkspace, ...updates })
    mutate({
      workspaces: (workspaces ?? []).map((w) =>
        w.id === workspaceId ? { ...data.workspace, members: w.members } : w
      ),
    })
  }

  return (
    <workspaceContext.Provider
      value={{
        workspaces,
        workspace: currentWorkspace,
        isLoading,
        canEdit,
        currentRole,
        switchWorkspace,
        createWorkspace,
        updateWorkspace,
      }}
    >
      {children}
    </workspaceContext.Provider>
  )
}

export const useWorkspace = () => useContext(workspaceContext)