import type {
  BrowserProfileListResult,
  BrowserTabCurrentResult,
  BrowserScreenshotResult,
  BrowserSnapshotResult,
  BrowserTabListResult,
  BrowserTabProfileCloneResult,
  BrowserTabProfileShowResult,
  BrowserTabShowResult,
  CliStatusResult,
  RuntimeRepoList,
  RuntimeRepoSearchRefs,
  RuntimeTerminalClose,
  RuntimeTerminalCreate,
  RuntimeTerminalFocus,
  RuntimeTerminalListResult,
  RuntimeTerminalRead,
  RuntimeTerminalRename,
  RuntimeTerminalSend,
  RuntimeTerminalShow,
  RuntimeTerminalSplit,
  RuntimeTerminalWait,
  RuntimeWorktreeListResult,
  RuntimeWorktreePsResult,
  RuntimeWorktreeRecord
} from '../shared/runtime-types'
import type { RuntimeRpcFailure, RuntimeRpcSuccess } from './runtime-client'
import { RuntimeClientError, RuntimeRpcFailureError } from './runtime-client'

export function printResult<TResult>(
  response: RuntimeRpcSuccess<TResult>,
  json: boolean,
  formatter: (value: TResult) => string
): void {
  if (json) {
    console.log(JSON.stringify(response, null, 2))
    return
  }
  console.log(formatter(response.result))
}

export function formatCliError(error: unknown): string {
  const message = error instanceof Error ? error.message : String(error)
  if (error instanceof RuntimeClientError && error.code === 'runtime_unavailable') {
    return `${message}\nOrca is not running. Run 'orca open' first.`
  }
  if (
    error instanceof RuntimeRpcFailureError &&
    error.response.error.code === 'runtime_unavailable'
  ) {
    return `${message}\nOrca is not running. Run 'orca open' first.`
  }
  return message
}

export function reportCliError(error: unknown, json: boolean): void {
  if (json) {
    if (error instanceof RuntimeRpcFailureError) {
      console.log(JSON.stringify(error.response, null, 2))
    } else {
      const response: RuntimeRpcFailure = {
        id: 'local',
        ok: false,
        error: {
          code: error instanceof RuntimeClientError ? error.code : 'runtime_error',
          message: formatCliError(error)
        },
        _meta: {
          runtimeId: null
        }
      }
      console.log(JSON.stringify(response, null, 2))
    }
  } else {
    console.error(formatCliError(error))
  }
}

export function formatCliStatus(status: CliStatusResult): string {
  return [
    `appRunning: ${status.app.running}`,
    `pid: ${status.app.pid ?? 'none'}`,
    `runtimeState: ${status.runtime.state}`,
    `runtimeReachable: ${status.runtime.reachable}`,
    `runtimeId: ${status.runtime.runtimeId ?? 'none'}`,
    `graphState: ${status.graph.state}`
  ].join('\n')
}

export function formatStatus(status: CliStatusResult): string {
  return formatCliStatus(status)
}

export function formatTerminalList(result: RuntimeTerminalListResult): string {
  if (result.terminals.length === 0) {
    return 'No live terminals.'
  }
  const body = result.terminals
    .map(
      (terminal) =>
        `${terminal.handle}  ${terminal.title ?? '(untitled)'}  ${terminal.connected ? 'connected' : 'disconnected'}  ${terminal.worktreePath}\n${terminal.preview ? `preview: ${terminal.preview}` : 'preview: <empty>'}`
    )
    .join('\n\n')
  return result.truncated
    ? `${body}\n\ntruncated: showing ${result.terminals.length} of ${result.totalCount}`
    : body
}

export function formatTerminalShow(result: { terminal: RuntimeTerminalShow }): string {
  const terminal = result.terminal
  return [
    `handle: ${terminal.handle}`,
    `title: ${terminal.title ?? '(untitled)'}`,
    `worktree: ${terminal.worktreePath}`,
    `branch: ${terminal.branch}`,
    `leaf: ${terminal.leafId}`,
    `ptyId: ${terminal.ptyId ?? 'none'}`,
    `connected: ${terminal.connected}`,
    `writable: ${terminal.writable}`,
    `preview: ${terminal.preview || '<empty>'}`
  ].join('\n')
}

export function formatTerminalRead(result: { terminal: RuntimeTerminalRead }): string {
  const terminal = result.terminal
  const header = [
    `handle: ${terminal.handle}`,
    `status: ${terminal.status}`,
    ...(terminal.nextCursor !== null ? [`cursor: ${terminal.nextCursor}`] : [])
  ]
  return [...header, '', ...terminal.tail].join('\n')
}

export function formatTerminalSend(result: { send: RuntimeTerminalSend }): string {
  return `Sent ${result.send.bytesWritten} bytes to ${result.send.handle}.`
}

export function formatTerminalRename(result: { rename: RuntimeTerminalRename }): string {
  return result.rename.title
    ? `Renamed terminal ${result.rename.handle} to "${result.rename.title}".`
    : `Cleared title for terminal ${result.rename.handle}.`
}

export function formatTerminalCreate(result: { terminal: RuntimeTerminalCreate }): string {
  const titleNote = result.terminal.title ? ` (title: "${result.terminal.title}")` : ''
  return `Created terminal ${result.terminal.handle}${titleNote}`
}

export function formatTerminalSplit(result: { split: RuntimeTerminalSplit }): string {
  return `Split pane ${result.split.handle} in tab ${result.split.tabId}`
}

export function formatTerminalFocus(result: { focus: RuntimeTerminalFocus }): string {
  return `Focused terminal ${result.focus.handle} (tab ${result.focus.tabId}).`
}

export function formatTerminalClose(result: { close: RuntimeTerminalClose }): string {
  const ptyNote = result.close.ptyKilled ? ' PTY killed.' : ''
  return `Closed terminal ${result.close.handle}.${ptyNote}`
}

export function formatTerminalWait(result: { wait: RuntimeTerminalWait }): string {
  return [
    `handle: ${result.wait.handle}`,
    `condition: ${result.wait.condition}`,
    `satisfied: ${result.wait.satisfied}`,
    `status: ${result.wait.status}`,
    `exitCode: ${result.wait.exitCode ?? 'null'}`
  ].join('\n')
}

export function formatWorktreePs(result: RuntimeWorktreePsResult): string {
  if (result.worktrees.length === 0) {
    return 'No worktrees found.'
  }
  const body = result.worktrees
    .map(
      (worktree) =>
        `${worktree.repo} ${worktree.branch}  live:${worktree.liveTerminalCount}  pty:${worktree.hasAttachedPty ? 'yes' : 'no'}  unread:${worktree.unread ? 'yes' : 'no'}\n${worktree.path}${worktree.preview ? `\npreview: ${worktree.preview}` : ''}`
    )
    .join('\n\n')
  return result.truncated
    ? `${body}\n\ntruncated: showing ${result.worktrees.length} of ${result.totalCount}`
    : body
}

export function formatRepoList(result: RuntimeRepoList): string {
  if (result.repos.length === 0) {
    return 'No repos found.'
  }
  return result.repos.map((repo) => `${repo.id}  ${repo.displayName}  ${repo.path}`).join('\n')
}

export function formatRepoShow(result: { repo: Record<string, unknown> }): string {
  return Object.entries(result.repo)
    .map(
      ([key, value]) =>
        `${key}: ${typeof value === 'object' ? JSON.stringify(value) : String(value)}`
    )
    .join('\n')
}

export function formatRepoRefs(result: RuntimeRepoSearchRefs): string {
  if (result.refs.length === 0) {
    return 'No refs found.'
  }
  return result.truncated ? `${result.refs.join('\n')}\n\ntruncated: yes` : result.refs.join('\n')
}

export function formatWorktreeList(result: RuntimeWorktreeListResult): string {
  if (result.worktrees.length === 0) {
    return 'No worktrees found.'
  }
  const body = result.worktrees
    .map(
      (worktree) =>
        `${String(worktree.id)}  ${String(worktree.branch)}  ${String(worktree.path)}\ndisplayName: ${String(worktree.displayName ?? '')}\nlinkedIssue: ${String(worktree.linkedIssue ?? 'null')}\ncomment: ${String(worktree.comment ?? '')}`
    )
    .join('\n\n')
  return result.truncated
    ? `${body}\n\ntruncated: showing ${result.worktrees.length} of ${result.totalCount}`
    : body
}

export function formatWorktreeShow(result: { worktree: RuntimeWorktreeRecord }): string {
  const worktree = result.worktree
  return Object.entries(worktree)
    .map(
      ([key, value]) =>
        `${key}: ${typeof value === 'object' ? JSON.stringify(value) : String(value)}`
    )
    .join('\n')
}

export function formatSnapshot(result: BrowserSnapshotResult): string {
  const header = `page: ${result.browserPageId}\n${result.title} — ${result.url}\n`
  return header + result.snapshot
}

export function formatScreenshot(result: BrowserScreenshotResult): string {
  return `Screenshot captured (${result.format}, ${Math.round(result.data.length * 0.75)} bytes)`
}

export function formatTabList(result: BrowserTabListResult): string {
  return formatTabListWithProfiles(result, false)
}

export function formatTabListWithProfiles(
  result: BrowserTabListResult,
  showProfile: boolean
): string {
  if (result.tabs.length === 0) {
    return 'No browser tabs open.'
  }
  return result.tabs
    .map((t) => {
      const marker = t.active ? '* ' : '  '
      const profile = showProfile ? `  [${t.profileLabel ?? t.profileId ?? 'Unknown'}]` : ''
      return `${marker}[${t.index}] ${t.browserPageId}  ${t.title} — ${t.url}${profile}`
    })
    .join('\n')
}

export function formatBrowserProfileList(result: BrowserProfileListResult): string {
  if (result.profiles.length === 0) {
    return 'No browser profiles found.'
  }
  return result.profiles
    .map((profile) => {
      const marker = profile.scope === 'default' ? '* ' : '  '
      const source = profile.source?.browserFamily ?? 'none'
      return `${marker}${profile.id}  ${profile.label}  ${profile.scope}  source:${source}`
    })
    .join('\n')
}

export function formatTabShow(result: BrowserTabShowResult | BrowserTabCurrentResult): string {
  const tab = result.tab
  return [
    `page: ${tab.browserPageId}`,
    `title: ${tab.title}`,
    `url: ${tab.url}`,
    `active: ${tab.active}`,
    `worktree: ${tab.worktreeId ?? 'unknown'}`,
    `profile: ${tab.profileLabel ?? tab.profileId ?? 'unknown'}`
  ].join('\n')
}

export function formatTabProfileShow(result: BrowserTabProfileShowResult): string {
  return [
    `page: ${result.browserPageId}`,
    `worktree: ${result.worktreeId ?? 'unknown'}`,
    `profileId: ${result.profileId ?? 'default'}`,
    `profile: ${result.profileLabel ?? result.profileId ?? 'default'}`
  ].join('\n')
}

export function formatTabProfileClone(result: BrowserTabProfileCloneResult): string {
  return `Cloned ${result.sourceBrowserPageId} to ${result.browserPageId} (${result.profileLabel ?? result.profileId ?? 'default'})`
}