import { useMemo } from 'react'
import { toast } from 'sonner'

import ProjectLinker from 'components/interfaces/Integrations/ProjectLinker'
import { Markdown } from 'components/interfaces/Markdown'
import { useGitHubAuthorizationQuery } from 'data/integrations/github-authorization-query'
import { useGitHubConnectionCreateMutation } from 'data/integrations/github-connection-create-mutation'
import { useGitHubConnectionDeleteMutation } from 'data/integrations/github-connection-delete-mutation'
import { useGitHubConnectionsQuery } from 'data/integrations/github-connections-query'
import { useGitHubRepositoriesQuery } from 'data/integrations/github-repositories-query'
import type { IntegrationConnectionsCreateVariables } from 'data/integrations/integrations.types'
import { useProjectsQuery } from 'data/projects/projects-query'
import { useSelectedOrganization } from 'hooks/misc/useSelectedOrganization'
import { openInstallGitHubIntegrationWindow } from 'lib/github'
import { EMPTY_ARR } from 'lib/void'
import { useSidePanelsStateSnapshot } from 'state/side-panels'
import { Button, SidePanel } from 'ui'

const GITHUB_ICON = (
  <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 98 96" className="w-6">
    <path
      fill="#ffffff"
      fillRule="evenodd"
      d="M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z"
      clipRule="evenodd"
    />
  </svg>
)

export type SidePanelGitHubRepoLinkerProps = {
  projectRef?: string
}

const SidePanelGitHubRepoLinker = ({ projectRef }: SidePanelGitHubRepoLinkerProps) => {
  const selectedOrganization = useSelectedOrganization()
  const sidePanelStateSnapshot = useSidePanelsStateSnapshot()

  const { data: gitHubAuthorization, isLoading: isLoadingGitHubAuthorization } =
    useGitHubAuthorizationQuery({ enabled: sidePanelStateSnapshot.githubConnectionsOpen })

  // [Alaister]: temp override with <any> until the typegen is fixed
  const { data: githubReposData, isLoading: isLoadingGitHubRepos } = useGitHubRepositoriesQuery<
    any[]
  >({
    enabled: Boolean(gitHubAuthorization),
  })

  /**
   * Supabase projects available
   */
  const { data: supabaseProjectsData, isLoading: isLoadingSupabaseProjects } = useProjectsQuery()

  const supabaseProjects = useMemo(
    () =>
      supabaseProjectsData
        ?.filter((project) => project.organization_id === selectedOrganization?.id)
        .map((project) => ({ name: project.name, ref: project.ref })) ?? EMPTY_ARR,
    [selectedOrganization?.id, supabaseProjectsData]
  )

  const githubRepos = useMemo(
    () =>
      githubReposData?.map((repo: any) => ({
        id: repo.id.toString(),
        name: repo.name,
        installation_id: repo.installation_id,
      })) ?? EMPTY_ARR,
    [githubReposData]
  )

  const { data: connections } = useGitHubConnectionsQuery({
    organizationId: selectedOrganization?.id,
  })

  const { mutate: createConnection, isLoading: isCreatingConnection } =
    useGitHubConnectionCreateMutation({
      onSuccess() {
        toast.success('Successfully linked project to repository!')
        sidePanelStateSnapshot.setGithubConnectionsOpen(false)
      },
    })

  const { mutateAsync: deleteConnection } = useGitHubConnectionDeleteMutation()

  const createGithubConnection = async (variables: IntegrationConnectionsCreateVariables) => {
    if (!selectedOrganization?.id) {
      throw new Error('No organization id')
    }
    if (!variables.new) {
      throw new Error('No new connection')
    }

    const existingConnection = connections?.find(
      (connection) => connection.project.ref === projectRef
    )

    if (existingConnection) {
      // remove existing connection so we can recreate it or update it
      try {
        await deleteConnection({
          organizationId: selectedOrganization.id,
          connectionId: existingConnection.id,
        })
      } catch (error) {
        // ignore the error to let createConnection handle it
      }
    }

    createConnection({
      organizationId: selectedOrganization.id,
      connection: variables.new,
    })
  }

  return (
    <SidePanel
      header={'Add GitHub repository'}
      size="large"
      visible={sidePanelStateSnapshot.githubConnectionsOpen}
      hideFooter
      onCancel={() => sidePanelStateSnapshot.setGithubConnectionsOpen(false)}
    >
      <div className="py-10 flex flex-col gap-6 bg-studio h-full">
        <SidePanel.Content className="flex flex-col gap-4">
          <Markdown
            content={`
### Choose repository to connect to

Check the details below before proceeding
          `}
          />

          {gitHubAuthorization === null ? (
            <div className="flex flex-col items-center justify-center mt-8 relative border rounded-lg p-12 bg shadow px-20s">
              <p className="text-sm text-center">
                Connect your Supabase projects with your GitHub repositories
              </p>
              <p className="text-sm text-center text-foreground-light">
                Authorize with GitHub to retrieve your GitHub repositories
              </p>
              <Button
                className="w-min mt-3"
                onClick={() => {
                  openInstallGitHubIntegrationWindow('authorize')
                }}
              >
                Authorize GitHub
              </Button>
            </div>
          ) : (
            <ProjectLinker
              defaultSupabaseProjectRef={projectRef}
              foreignProjects={githubRepos}
              supabaseProjects={supabaseProjects}
              onCreateConnections={createGithubConnection}
              isLoading={isCreatingConnection}
              loadingForeignProjects={isLoadingGitHubRepos}
              loadingSupabaseProjects={isLoadingSupabaseProjects}
              integrationIcon={GITHUB_ICON}
              choosePrompt="Choose GitHub Repo"
              showNoEntitiesState={false}
              mode="GitHub"
            />
          )}
        </SidePanel.Content>
      </div>
    </SidePanel>
  )
}

export default SidePanelGitHubRepoLinker