import { LOCAL_STORAGE_KEYS, useFlag } from 'common'
import { useMemo } from 'react'

import { type BannerId } from '@/components/ui/BannerStack/BannerStackProvider'

export type FeaturePreview = {
  key: string
  name: string
  discussionsUrl?: string
  isNew: boolean
  /** If feature flag is only relevant for the hosted platform */
  isPlatformOnly: boolean
  /** If feature flag should be enabled by default for users, if not yet toggled before */
  isDefaultOptIn: boolean
  /** Visibility in the feature preview modal (For feature flagging a feature preview) */
  enabled: boolean
  /**
   * Forces the preview on for this user, whatever they previously chose — for a
   * preview that has become the default behavior. Overrides both `isDefaultOptIn`
   * and a stored opt-out, and takes away the ability to turn the preview back off.
   */
  isForced?: boolean
  /** Optional category that the feature preview falls under, defaults to "Others" in the UI otherwise */
  category?: 'observability' | 'database' | 'editors'
  /**
   * Where to send the user after enabling, to try the feature out. Omit if the
   * feature has no single destination (e.g. a global layout change).
   */
  getRoute?: (ref?: string) => string
  bannerId?: BannerId
}

export const useFeaturePreviews = (): FeaturePreview[] => {
  const isPlatformWebhooksEnabled = useFlag('platformWebhooks')
  const jitDbAccessEnabled = useFlag('jitDbAccess')
  const isMarketplaceEnabled = useFlag('marketplaceIntegrations')
  const isDatabaseConnectionsEnabled = useFlag('topForPostgres')
  const isExplorerEnabled = useFlag('explorer')

  const isSqlEditorManualSaveForced = useFlag('sqlEditorManualSaveForced')

  return useMemo(() => {
    const previews: FeaturePreview[] = [
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_EXPLORER,
        name: 'Explorer & Notebooks',
        category: 'editors',
        // [Joshen TODO] Update with proper URL once discussion is up
        discussionsUrl: undefined,
        enabled: isExplorerEnabled,
        isNew: true,
        isPlatformOnly: true,
        isDefaultOptIn: true,
        getRoute: (ref?: string) => `/project/${ref}/explorer`,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_UNIFIED_LOGS,
        name: 'Updated Logs interface',
        category: 'observability',
        discussionsUrl: 'https://github.com/orgs/supabase/discussions/37234',
        enabled: true,
        isNew: true,
        isPlatformOnly: true,
        isDefaultOptIn: true,
        getRoute: (ref?: string) => `/project/${ref}/logs`,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_ADVISOR_RULES,
        name: 'Disable Advisor rules',
        discussionsUrl: undefined,
        enabled: true,
        isNew: false,
        isPlatformOnly: true,
        isDefaultOptIn: false,
        getRoute: (ref?: string) => `/project/${ref}/advisors/rules/security`,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_PG_DELTA_DIFF,
        name: 'PG Delta Diff',
        discussionsUrl: undefined,
        isNew: false,
        isPlatformOnly: true,
        isDefaultOptIn: true,
        enabled: true,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_PLATFORM_WEBHOOKS,
        name: 'Platform webhooks',
        discussionsUrl: undefined,
        isNew: false,
        isPlatformOnly: true,
        isDefaultOptIn: false,
        enabled: isPlatformWebhooksEnabled,
        getRoute: (ref?: string) => `/project/${ref}/settings/webhooks`,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_JIT_DB_ACCESS,
        name: 'Temporary database access',
        category: 'database',
        discussionsUrl: undefined,
        isNew: false,
        isPlatformOnly: true,
        isDefaultOptIn: false,
        enabled: jitDbAccessEnabled,
        getRoute: (ref?: string) => `/project/${ref}/database/settings`,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_CLS,
        name: 'Column-level privileges',
        category: 'database',
        discussionsUrl: 'https://github.com/orgs/supabase/discussions/20295',
        enabled: true,
        isNew: false,
        isPlatformOnly: false,
        isDefaultOptIn: false,
        getRoute: (ref?: string) => `/project/${ref}/database/column-privileges`,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_MARKETPLACE,
        name: 'One-Click Integrations',
        discussionsUrl: undefined,
        enabled: isMarketplaceEnabled,
        isNew: true,
        isPlatformOnly: false,
        isDefaultOptIn: true,
        getRoute: (ref?: string) => `/project/${ref}/integrations`,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_SQL_EDITOR_MANUAL_SAVE,
        category: 'editors',
        name: 'Disable snippet auto-saving',
        discussionsUrl: undefined,
        isNew: true,
        isPlatformOnly: true,
        isDefaultOptIn: false,
        enabled: true,
        // Manual saving is becoming the default for the SQL Editor. The preview
        // stays listed so users who lose their local storage can opt back in
        // before the rollout reaches them.
        isForced: isSqlEditorManualSaveForced,
      },
      {
        key: LOCAL_STORAGE_KEYS.UI_PREVIEW_DATABASE_CONNECTIONS,
        name: 'Diagnose blocked queries',
        category: 'observability',
        discussionsUrl: 'https://github.com/orgs/supabase/discussions/48639',
        isNew: true,
        isPlatformOnly: false,
        isDefaultOptIn: isDatabaseConnectionsEnabled,
        enabled: true,
        getRoute: (ref?: string) => `/project/${ref}/observability/connections`,
        bannerId: 'database-connections-banner',
      },
    ]

    return previews.sort((a, b) => Number(b.isNew) - Number(a.isNew))
  }, [
    isSqlEditorManualSaveForced,
    isPlatformWebhooksEnabled,
    jitDbAccessEnabled,
    isMarketplaceEnabled,
    isDatabaseConnectionsEnabled,
    isExplorerEnabled,
  ])
}