import { createContext, type JSX, useContext } from "solid-js"

export type PlatformFiles = Readonly<{
  readText(path: string): Promise<string>
  readBytes(path: string): Promise<Uint8Array>
  mime(path: string): Promise<string>
}>

export type PlatformClipboardContent = Readonly<{
  data: string
  mime: string
}>

export type TuiPlatform = Readonly<{
  files: PlatformFiles
  state?: Readonly<{
    read(): Promise<Record<string, unknown>>
    write(value: Record<string, unknown>): Promise<void>
  }>
  themes?: Readonly<{
    discover(): Promise<Record<string, unknown>>
    subscribeRefresh?(refresh: () => void): () => void
  }>
  clipboard?: Readonly<{
    read?(): Promise<PlatformClipboardContent | undefined>
    write?(text: string): Promise<void>
  }>
  editor?: Readonly<{
    open(input: Readonly<{ value: string; cwd?: string }>): Promise<string | undefined>
    connection?(directory: string): Readonly<{ url: string; authToken?: string; source: string }> | undefined
    selection?(directory: string): Promise<unknown>
  }>
  export?: Readonly<{
    write(path: string, content: string): Promise<void>
  }>
}>

const PlatformContext = createContext<TuiPlatform>()

export function TuiPlatformProvider(props: { value: TuiPlatform; children: JSX.Element }) {
  return <PlatformContext.Provider value={props.value}>{props.children}</PlatformContext.Provider>
}

export function useTuiPlatform() {
  const value = useContext(PlatformContext)
  if (!value) throw new Error("TuiPlatformProvider is missing")
  return value
}

export function useOptionalTuiPlatform() {
  return useContext(PlatformContext)
}