import { Box, Check, ChevronsUpDown, Plus } from 'lucide-react'
import Link from 'next/link'
import { useRouter } from 'next/router'
import { ParsedUrlQuery } from 'querystring'
import { useState } from 'react'

import { useParams } from 'common'
import ShimmeringLoader from 'components/ui/ShimmeringLoader'
import { ProjectInfo, useProjectsQuery } from 'data/projects/projects-query'
import { useIsFeatureEnabled } from 'hooks/misc/useIsFeatureEnabled'
import { useSelectedOrganizationQuery } from 'hooks/misc/useSelectedOrganization'
import { useSelectedProjectQuery } from 'hooks/misc/useSelectedProject'
import { IS_PLATFORM } from 'lib/constants'
import type { Organization } from 'types'
import {
  Button,
  CommandEmpty_Shadcn_,
  CommandGroup_Shadcn_,
  CommandInput_Shadcn_,
  CommandItem_Shadcn_,
  CommandList_Shadcn_,
  CommandSeparator_Shadcn_,
  Command_Shadcn_,
  PopoverContent_Shadcn_,
  PopoverTrigger_Shadcn_,
  Popover_Shadcn_,
  ScrollArea,
  cn,
} from 'ui'

// [Fran] the idea is to let users change projects without losing the current page,
// but at the same time we need to redirect correctly between urls that might be
// unique to a project e.g. '/project/projectRef/editor/tableId'
// Right now, I'm gonna assume that any router query after the projectId,
// is a unique project id/marker so we'll redirect the user to the
// highest common route with just projectRef in the router queries.

export const sanitizeRoute = (route: string, routerQueries: ParsedUrlQuery) => {
  const queryArray = Object.entries(routerQueries)

  if (queryArray.length > 1) {
    // [Joshen] Ideally we shouldn't use hard coded numbers, but temp workaround
    // for storage bucket route since its longer
    const isStorageBucketRoute = 'bucketId' in routerQueries
    const isSecurityAdvisorRoute = 'preset' in routerQueries

    return route
      .split('/')
      .slice(0, isStorageBucketRoute || isSecurityAdvisorRoute ? 5 : 4)
      .join('/')
  } else {
    return route
  }
}

const ProjectLink = ({
  project,
  setOpen,
}: {
  project: ProjectInfo
  organization?: Organization
  setOpen: (value: boolean) => void
}) => {
  const router = useRouter()
  const { ref } = useParams()
  const sanitizedRoute = sanitizeRoute(router.route, router.query)

  // [Joshen] Temp while we're interim between v1 and v2 billing
  let href = sanitizedRoute?.replace('[ref]', project.ref) ?? `/project/${project.ref}`

  return (
    <CommandItem_Shadcn_
      key={project.ref}
      value={`${project.name.replaceAll('"', '')}-${project.ref}`}
      className="cursor-pointer w-full"
      onSelect={() => {
        router.push(href)
        setOpen(false)
      }}
      onClick={() => setOpen(false)}
    >
      <Link href={href} className="w-full flex items-center justify-between">
        {project.name}
        {project.ref === ref && <Check size={16} />}
      </Link>
    </CommandItem_Shadcn_>
  )
}

export const ProjectDropdown = () => {
  const router = useRouter()
  const { ref } = useParams()
  const { data: project } = useSelectedProjectQuery()
  const { data, isLoading: isLoadingProjects } = useProjectsQuery()
  const { data: selectedOrganization } = useSelectedOrganizationQuery()

  const projectCreationEnabled = useIsFeatureEnabled('projects:create')

  const isBranch = project?.parentRef !== project?.ref

  const projects = (data?.projects ?? [])
    .filter((x) => x.organization_id === selectedOrganization?.id)
    .sort((a, b) => a.name.localeCompare(b.name))
  const selectedProject = isBranch
    ? projects?.find((p) => p.ref === project?.parentRef)
    : projects?.find((p) => p.ref === ref)

  const [open, setOpen] = useState(false)

  if (isLoadingProjects || !selectedProject) {
    return <ShimmeringLoader className="w-[90px]" />
  }

  return IS_PLATFORM ? (
    <>
      <Link
        href={`/project/${project?.ref}`}
        className="flex items-center gap-2 flex-shrink-0 text-sm"
      >
        <Box size={14} strokeWidth={1.5} className="text-foreground-lighter" />
        <span className="text-foreground max-w-32 lg:max-w-none truncate">
          {selectedProject?.name}
        </span>
      </Link>
      <Popover_Shadcn_ open={open} onOpenChange={setOpen} modal={false}>
        <PopoverTrigger_Shadcn_ asChild>
          <Button
            type="text"
            size="tiny"
            className={cn('px-1.5 py-4 [&_svg]:w-5 [&_svg]:h-5 ml-1')}
            iconRight={<ChevronsUpDown strokeWidth={1.5} />}
          />
        </PopoverTrigger_Shadcn_>
        <PopoverContent_Shadcn_ className="p-0" side="bottom" align="start">
          <Command_Shadcn_>
            <CommandInput_Shadcn_ placeholder="Find project..." />
            <CommandList_Shadcn_>
              <CommandEmpty_Shadcn_>No projects found</CommandEmpty_Shadcn_>
              <CommandGroup_Shadcn_>
                <ScrollArea className={(projects || []).length > 7 ? 'h-[210px]' : ''}>
                  {projects?.map((project) => (
                    <ProjectLink key={project.ref} project={project} setOpen={setOpen} />
                  ))}
                </ScrollArea>
              </CommandGroup_Shadcn_>
              {projectCreationEnabled && (
                <>
                  <CommandSeparator_Shadcn_ />
                  <CommandGroup_Shadcn_>
                    <CommandItem_Shadcn_
                      className="cursor-pointer w-full"
                      onSelect={() => {
                        setOpen(false)
                        router.push(`/new/${selectedOrganization?.slug}`)
                      }}
                      onClick={() => setOpen(false)}
                    >
                      <Link
                        href={`/new/${selectedOrganization?.slug}`}
                        onClick={() => {
                          setOpen(false)
                        }}
                        className="w-full flex items-center gap-2"
                      >
                        <Plus size={14} strokeWidth={1.5} />
                        <p>New project</p>
                      </Link>
                    </CommandItem_Shadcn_>
                  </CommandGroup_Shadcn_>
                </>
              )}
            </CommandList_Shadcn_>
          </Command_Shadcn_>
        </PopoverContent_Shadcn_>
      </Popover_Shadcn_>
    </>
  ) : (
    <Button type="text">
      <span className="text-sm">{selectedProject?.name}</span>
    </Button>
  )
}