import { createSimpleContext } from "@opencode/ui/context"
import type { AsyncStorage, SyncStorage } from "@solid-primitives/storage"
import type { Accessor } from "solid-js"
import type { DesktopMenuAction } from "@/shell/commands/desktop-menu"
import { ServerConnection } from "@/runtime/server/registry"
import type { WslServersPlatform } from "@/servers/wsl/types"
import type { SshPlatform } from "@/servers/ssh/types"
import type { UpdaterPlatform } from "@/shell/updates/types"
import type { DraftStore } from "@/runtime/persistence/drafts"
import type { BrowserPanePlatform } from "./browser-pane"

type PickerPaths = string | string[] | null
type OpenDirectoryPickerOptions = { title?: string; multiple?: boolean }
type OpenAttachmentPickerOptions = {
  title?: string
  multiple?: boolean
  accept?: string[]
  extensions?: string[]
  defaultPath?: string
}
type SaveFilePickerOptions = { title?: string; defaultPath?: string }
type PlatformName = "web" | "desktop"
type DesktopOS = "macos" | "windows" | "linux"

export type PairingInfo = {
  readonly urls: readonly string[]
  readonly username: "opencode"
  readonly password: string
}

export type FatalRendererErrorLog = {
  error: string
  url: string
  version?: string
  platform: PlatformName
  os?: DesktopOS
}

type PlatformBase = {
  /** App version */
  version?: string

  /** Open a web or mail URL in the default system application */
  openExternal(url: string): void

  /** Open a local path in a local app (desktop only) */
  openPath?(path: string, app?: string): Promise<void>

  /** Open a local file URL in its default app (desktop only) */
  openLocalFile?(url: string): void

  /** Reveal a local path in the system file manager; false when the path does not exist (desktop only) */
  revealPath?(path: string): Promise<boolean>

  /** Restart the app  */
  restart(): Promise<void>

  /** Send a system notification */
  notify(title: string, description?: string, onClick?: () => void): Promise<void>

  /** Open a native attachment picker and read selected files sequentially (desktop only) */
  openAttachmentPickerDialog?(
    opts: OpenAttachmentPickerOptions,
    onFile: (file: File) => Promise<unknown>,
  ): Promise<void>

  /** Resolve the native source path for a desktop File. */
  getPathForFile?(file: File): string

  /** Observe native drag cancellation that does not reach the renderer event loop. */
  onDragCancel?(callback: () => void): () => void

  /** Open a native save file dialog and write content to the selected path (desktop only) */
  saveFile?(opts: SaveFilePickerOptions, content: string): Promise<boolean>

  /** Storage mechanism, defaults to localStorage */
  storage?: (name?: string) => SyncStorage | AsyncStorage

  /** Prompt drafts, history, and their blobs. */
  draftStore?: DraftStore

  /** Application-global desktop updater */
  updater?: UpdaterPlatform

  /** Fetch override */
  fetch?: typeof fetch

  /** Get the configured default server URL (platform-specific) */
  getDefaultServer?(): Promise<ServerConnection.Key | null>

  /** Set the default server URL to use on app startup (platform-specific) */
  setDefaultServer?(url: ServerConnection.Key | null): Promise<void> | void

  /** Manage WSL sidecar servers (Electron on Windows only) */
  wslServers?: WslServersPlatform
  sshServers?: SshPlatform

  /** Webview zoom level (desktop only) */
  webviewZoom?: Accessor<number>

  /** Whether the native desktop window is fullscreen */
  windowFullscreen?: Accessor<boolean>

  /** Get whether native pinch/Ctrl-scroll zoom gestures are enabled (desktop only) */
  getPinchZoomEnabled?(): Promise<boolean> | boolean

  /** Allow native pinch/Ctrl-scroll zoom gestures (desktop only) */
  setPinchZoomEnabled?(enabled: boolean): Promise<void> | void

  /** Prevent the local display from sleeping while the desktop app is running. */
  getKeepScreenActive?(): Promise<boolean>
  setKeepScreenActive?(enabled: boolean): Promise<void>

  /** Run a desktop-only menu action from the app chrome */
  runDesktopMenuAction?(action: DesktopMenuAction): Promise<void> | void

  /** Check if an editor app exists (desktop only) */
  checkAppExists?(appName: string): Promise<boolean>

  /** Read image from clipboard (desktop only) */
  readClipboardImage?(): Promise<File | null>

  /** Write text to the native clipboard (desktop only) */
  writeClipboardText?(text: string): Promise<void>

  /** Export collected diagnostic logs (desktop only) */
  exportDebugLogs?(): Promise<string>

  /** Force focus styles on interactive elements through desktop devtools (desktop only) */
  setForceFocus?(enabled: boolean): Promise<void>

  /** Record a fatal renderer error in platform logs (desktop only) */
  recordFatalRendererError?(error: FatalRendererErrorLog): Promise<void>

  /** Native browser pane hosted by the platform (desktop only). */
  browserPane?: BrowserPanePlatform

  /** Pair another device with the local desktop server. */
  pair?: {
    info(): Promise<PairingInfo>
  }
}

export type Platform = PlatformBase &
  (
    | { platform: "web"; os?: never; windowID?: never }
    | {
        platform: "desktop"
        os?: DesktopOS
        /** Stable platform window identity for window-scoped persistence */
        windowID: string
        openDirectoryPickerDialog(opts?: OpenDirectoryPickerOptions): Promise<PickerPaths>
      }
  )

export const { use: usePlatform, provider: PlatformProvider } = createSimpleContext({
  name: "Platform",
  init: (props: { value: Platform }) => {
    return props.value
  },
})