// @vitest-environment happy-dom

import { createElement } from 'react'
import { act, cleanup, render } from '@testing-library/react'
import { afterEach, describe, expect, it } from 'vitest'
import type { AppState } from '@/store/types'
import type { RuntimeFileOperationArgs } from '../../src/renderer/src/runtime/files/runtime-file-client-types'
import { useAppStore } from '@/store'
import type { TerminalTab } from '../../src/shared/workspace-layout/terminal-tab-types'

import { FLOATING_TERMINAL_WORKTREE_ID, getDefaultSettings } from '../../src/shared/constants'
import {
  resolveNativeChatImageRuntimeContext,
  resolveNativeChatImageRuntimeContextForOwner,
  selectNativeChatImageOwnerState,
  useNativeChatImageRuntimeContext
} from '../../src/renderer/src/components/native-chat/media/images/native-chat-image-runtime-context'
import {
  makeFolderWorkspace,
  makeProjectGroup
} from '../../src/renderer/src/components/sidebar/workspace-creation/folder/folder-workspace-composer-submit-fixtures'
import { resolveNativeChatFileLinkContext } from '../../src/renderer/src/components/native-chat/links/actions/native-chat-file-link-context'
import {
  resolveNativeChatSkillDiscoveryContext,
  selectNativeChatSkillStateInputs
} from '../../src/renderer/src/components/native-chat/composer/pickers/native-chat-skill-discovery-context'
import { getEditorFileOperationContext } from '@/lib/editor-file-operation-owner'
import { captureWorktreeSshMutationExpectation } from '@/lib/ssh-mutation-expectation'
import { adoptFromEndpoint } from '@/store/host-catalog/endpoint-catalog-adoption'
import { assertRuntimeFileMutationExpectation } from '../../src/main/runtime/files/file-mutation-expectation'
import {
  resetSshConnectionGenerations,
  setSshConnectionGeneration
} from '../../src/main/ssh/connection/ssh-connection-generation'
import {
  agentSessionTabFixture,
  nativeChatFanoutFixture,
  nativeChatFanoutWorkspace,
  repoFixture,
  terminalTabFixture,
  worktreeFixture
} from '../../src/renderer/src/components/native-chat/surfaces/integration/native-chat-workspace-test-fixtures'

const originalState = useAppStore.getState()
afterEach(() => {
  cleanup()
  useAppStore.setState(originalState, true)
})

function state(overrides: Partial<AppState> = {}): AppState {
  const tab: TerminalTab = {
    id: 'tab-1',
    ptyId: null,
    worktreeId: 'wt-1',
    title: 'Terminal 1',
    customTitle: null,
    color: null,
    sortOrder: 0,
    createdAt: 0
  }
  const worktree = worktreeFixture('wt-1', '/repo/worktree', { hostId: 'local' })
  return {
    ...useAppStore.getInitialState(),
    activeWorkspaceExecutionHostId: 'local',
    activeWorktreeId: 'wt-1',
    detectedWorktreesByRepo: {},
    folderWorkspaces: [],
    getKnownWorktreeById: () => worktree,
    projectGroups: [],
    removedRuntimeEnvironmentIds: new Set(),
    repos: [repoFixture()],
    restoredRuntimeHostIdByWorkspaceSessionKey: {},
    runtimeEnvironmentCatalogHydrated: true,
    runtimeEnvironments: [],
    settings: { ...getDefaultSettings('/home/me'), activeRuntimeEnvironmentId: null },
    sshConnectionStates: new Map(),
    sshStateByEnvironment: new Map(),
    tabsByWorktree: { 'wt-1': [tab] },
    unifiedTabsByWorktree: {},
    worktreesByRepo: { repo: [worktree] },
    ...overrides
  }
}

describe('resolveNativeChatImageRuntimeContext', () => {
  it.each(['inherited', 'adopted'] as const)(
    'retains a paired folder target through real file, image, skill and write contexts: %s',
    (shape) => {
      const target = { kind: 'environment', environmentId: 'owner-a' } as const
      const original = makeFolderWorkspace({
        id: 'paired-folder',
        projectGroupId: 'paired-project',
        folderPath: '/remote/folder',
        connectionId: 'box'
      })
      const folder =
        shape === 'adopted'
          ? adoptFromEndpoint(target, {
              kind: 'folderWorkspace',
              row: original,
              resolveOwnHostId: () => 'ssh:box' as const
            })
          : { ...original, connectionId: null }
      const workspaceId = `folder:${folder.id}`
      const snapshot = state({
        activeWorktreeId: workspaceId,
        activeWorkspaceExecutionHostId: 'runtime:owner-a',
        folderWorkspaces: [folder],
        projectGroups: [
          adoptFromEndpoint(target, {
            kind: 'projectGroup',
            row: {
              ...makeProjectGroup(),
              id: 'paired-project',
              executionHostId: 'ssh:box',
              connectionId: 'box'
            }
          })
        ],
        repos: [],
        worktreesByRepo: {},
        tabsByWorktree: {
          [workspaceId]: [{ ...state().tabsByWorktree['wt-1'][0], worktreeId: workspaceId }]
        },
        runtimeEnvironments: [],
        sshStateByEnvironment: new Map([
          [
            'owner-a',
            {
              targetsHydrated: true,
              targetLabels: new Map([['box', 'Server box']]),
              targetGenerations: new Map([['box', 7]]),
              removedTargetLabels: new Map(),
              connectionStates: new Map([
                [
                  'box',
                  {
                    targetId: 'box',
                    status: 'connected',
                    error: null,
                    reconnectAttempt: 0,
                    connectionGeneration: 7
                  }
                ]
              ])
            }
          ]
        ])
      })
      expect.soft(resolveNativeChatFileLinkContext(snapshot, 'tab-1')).toMatchObject({
        worktreeId: workspaceId,
        worktreePath: '/remote/folder',
        runtimeEnvironmentId: 'owner-a'
      })
      expect
        .soft(
          resolveNativeChatImageRuntimeContext(selectNativeChatImageOwnerState(snapshot), 'tab-1')
        )
        .toMatchObject({
          target: { kind: 'environment', environmentId: 'owner-a' },
          worktreePath: '/remote/folder',
          expectedExecutionHostId: 'ssh:box',
          expectedSshConnectionGeneration: 7
        })
      expect
        .soft(
          resolveNativeChatSkillDiscoveryContext(
            selectNativeChatSkillStateInputs(snapshot),
            'tab-1'
          )
        )
        .toMatchObject({
          cwd: '/remote/folder',
          runtimeTarget: { kind: 'environment', environmentId: 'owner-a' },
          discoveryTarget: { worktreeId: workspaceId }
        })
      const editor = getEditorFileOperationContext(
        snapshot,
        { worktreeId: workspaceId },
        '/remote/folder'
      )
      expect.soft(editor).toMatchObject({
        target: { kind: 'environment', environmentId: 'owner-a' },
        expectedExecutionHostId: 'ssh:box',
        expectedSshConnectionGeneration: 7
      })
      resetSshConnectionGenerations()
      setSshConnectionGeneration('box', 7)
      expect
        .soft(() =>
          assertRuntimeFileMutationExpectation(
            'ssh:box',
            editor.expectedExecutionHostId,
            editor.expectedSshTargetId,
            editor.expectedSshConnectionGeneration
          )
        )
        .not.toThrow()
      resetSshConnectionGenerations()
      expect.soft(captureWorktreeSshMutationExpectation(snapshot, workspaceId)).toEqual({
        expectedExecutionHostId: 'ssh:box',
        expectedSshTargetId: 'box',
        expectedSshConnectionGeneration: 7
      })
    }
  )

  it('keeps selected-hook results equivalent to full-state resolution through ownership, pin and host transitions', () => {
    const base = state({
      worktreesByRepo: {
        repo: [
          worktreeFixture('wt-1', '/repo/worktree', { hostId: 'local' }),
          worktreeFixture('wt-2', '/repo/second', { hostId: 'local' })
        ]
      }
    })
    const duplicate = {
      ...base,
      tabsByWorktree: {
        'wt-1': [terminalTabFixture('tab-1', 'wt-1')],
        'wt-2': [terminalTabFixture('tab-1', 'wt-2')]
      },
      unifiedTabsByWorktree: {
        'wt-2': [agentSessionTabFixture('tab-1', 'wt-2')],
        'wt-1': [agentSessionTabFixture('tab-1', 'wt-1')]
      }
    }
    const fallback = { ...duplicate, tabsByWorktree: {} }
    const moved = {
      ...fallback,
      unifiedTabsByWorktree: { 'wt-1': [agentSessionTabFixture('tab-1', 'wt-1')] }
    }
    const floatingTab = agentSessionTabFixture('tab-1', FLOATING_TERMINAL_WORKTREE_ID)
    const floating = {
      ...base,
      tabsByWorktree: {},
      unifiedTabsByWorktree: { [FLOATING_TERMINAL_WORKTREE_ID]: [floatingTab] },
      structuredSessionLaunchDirectoryByTabId: {},
      floatingWorkspacePath: '/floating-setting'
    }
    const pinned = {
      ...floating,
      structuredSessionLaunchDirectoryByTabId: {
        'tab-1': { sessionId: floatingTab.entityId, launchDirectory: '/pinned' }
      }
    }
    const replaced = {
      ...pinned,
      unifiedTabsByWorktree: {
        [FLOATING_TERMINAL_WORKTREE_ID]: [{ ...floatingTab, entityId: 'replacement' }]
      }
    }
    const folder = nativeChatFanoutFixture(0, 1, 0)
    const folderState = {
      ...base,
      ...folder,
      unifiedTabsByWorktree: {
        [nativeChatFanoutWorkspace(0)]: [
          agentSessionTabFixture('tab-1', nativeChatFanoutWorkspace(0))
        ]
      }
    }
    const environment = (id: string): AppState['runtimeEnvironments'][number] => ({
      id,
      name: id,
      createdAt: 0,
      updatedAt: 0,
      lastUsedAt: null,
      runtimeId: null,
      preferredEndpointId: 'endpoint',
      endpoints: []
    })
    const remote = (id: string): AppState => ({
      ...base,
      activeWorkspaceExecutionHostId: `runtime:${id}`,
      runtimeEnvironments: [environment(id)],
      repos: [repoFixture({ executionHostId: `runtime:${id}` })],
      worktreesByRepo: {
        repo: [worktreeFixture('wt-1', '/remote', { hostId: `runtime:${id}` })]
      }
    })
    const ssh = (generation?: number): AppState => ({
      ...remote('owner-a'),
      activeWorkspaceExecutionHostId: 'ssh:ssh-1',
      worktreesByRepo: {
        repo: [
          worktreeFixture('wt-1', '/ssh', {
            hostId: 'ssh:ssh-1',
            runtimeOwnerEnvironmentId: 'owner-a'
          })
        ]
      },
      sshStateByEnvironment: new Map([
        [
          'owner-a',
          {
            targets: [],
            targetGenerations: new Map(),
            targetLabels: new Map(),
            removedTargetLabels: new Map(),
            targetsHydrated: true,
            connectionStates: new Map([
              [
                'ssh-1',
                {
                  targetId: 'ssh-1',
                  status: 'connected',
                  error: null,
                  reconnectAttempt: 0,
                  connectionGeneration: generation
                }
              ]
            ])
          }
        ]
      ])
    })
    const local = (worktreeId: string, worktreePath: string) => ({
      worktreeId,
      worktreePath,
      target: { kind: 'local' as const }
    })
    const paired = ssh(3)
    const cases: [
      name: string,
      snapshot: AppState,
      expected: Partial<RuntimeFileOperationArgs> | null
    ][] = [
      ['terminal-first and first duplicate', duplicate, local('wt-1', '/repo/worktree')],
      ['unified fallback', fallback, local('wt-2', '/repo/second')],
      ['move', moved, local('wt-1', '/repo/worktree')],
      ['remove', { ...moved, unifiedTabsByWorktree: {} }, null],
      ['return', fallback, local('wt-2', '/repo/second')],
      ['missing pin', floating, null],
      [
        'wrong pin',
        {
          ...pinned,
          structuredSessionLaunchDirectoryByTabId: {
            'tab-1': { sessionId: 'wrong', launchDirectory: '/wrong' }
          }
        },
        null
      ],
      ['correct pin', pinned, local(FLOATING_TERMINAL_WORKTREE_ID, '/pinned')],
      ['replaced session', replaced, null],
      [
        'replaced pin',
        {
          ...replaced,
          structuredSessionLaunchDirectoryByTabId: {
            'tab-1': { sessionId: 'replacement', launchDirectory: '/replacement' }
          }
        },
        local(FLOATING_TERMINAL_WORKTREE_ID, '/replacement')
      ],
      [
        'floating directory predicate skips unregistered duplicate',
        {
          ...pinned,
          unifiedTabsByWorktree: {
            [FLOATING_TERMINAL_WORKTREE_ID]: [
              { ...floatingTab, entityId: 'unregistered', agentSessionAgent: undefined },
              floatingTab
            ]
          }
        },
        local(FLOATING_TERMINAL_WORKTREE_ID, '/pinned')
      ],
      [
        'floating terminal fallback',
        {
          ...floating,
          tabsByWorktree: {
            [FLOATING_TERMINAL_WORKTREE_ID]: [
              terminalTabFixture('tab-1', FLOATING_TERMINAL_WORKTREE_ID)
            ]
          },
          unifiedTabsByWorktree: {}
        },
        local(FLOATING_TERMINAL_WORKTREE_ID, '/floating-setting')
      ],
      [
        'floating first registered duplicate wins',
        {
          ...pinned,
          unifiedTabsByWorktree: {
            [FLOATING_TERMINAL_WORKTREE_ID]: [floatingTab, { ...floatingTab, entityId: 'second' }]
          },
          structuredSessionLaunchDirectoryByTabId: {
            'tab-1': { sessionId: 'second', launchDirectory: '/wrong-second' }
          }
        },
        null
      ],
      ['folder', folderState, local(nativeChatFanoutWorkspace(0), '/repo/0')],
      [
        'runtime',
        remote('owner-a'),
        { worktreePath: '/remote', target: { kind: 'environment', environmentId: 'owner-a' } }
      ],
      [
        'runtime replacement',
        remote('owner-b'),
        { target: { kind: 'environment', environmentId: 'owner-b' } }
      ],
      [
        'owner-only runtime hydration',
        {
          ...remote('owner-a'),
          activeWorktreeId: null,
          activeWorkspaceExecutionHostId: null,
          worktreesByRepo: {
            repo: [
              worktreeFixture('wt-1', '/remote', {
                hostId: undefined,
                runtimeOwnerEnvironmentId: 'owner-a'
              })
            ]
          }
        },
        { worktreePath: '/remote', target: { kind: 'environment', environmentId: 'owner-a' } }
      ],
      [
        'paired SSH',
        paired,
        {
          worktreePath: '/ssh',
          expectedExecutionHostId: 'ssh:ssh-1',
          expectedSshConnectionGeneration: 3,
          target: { kind: 'environment', environmentId: 'owner-a' }
        }
      ],
      [
        'SSH generation-only change',
        { ...paired, sshStateByEnvironment: ssh(4).sshStateByEnvironment },
        { expectedSshConnectionGeneration: 4 }
      ],
      [
        'SSH generation absent',
        { ...paired, sshStateByEnvironment: ssh().sshStateByEnvironment },
        null
      ],
      [
        'unpaired SSH',
        {
          ...paired,
          repos: [repoFixture({ connectionId: 'ssh-1' })],
          worktreesByRepo: {
            repo: [worktreeFixture('wt-1', '/ssh', { hostId: 'ssh:ssh-1' })]
          }
        },
        null
      ]
    ]
    let observed: RuntimeFileOperationArgs | null = null
    function Probe() {
      observed = useNativeChatImageRuntimeContext('tab-1')
      return null
    }
    useAppStore.setState(base)
    render(createElement(Probe))
    for (const [name, snapshot, expected] of cases) {
      act(() => useAppStore.setState(snapshot))
      expect(observed, name).toEqual(resolveNativeChatImageRuntimeContext(snapshot, 'tab-1'))
      if (expected === null) {
        expect(observed, name).toBeNull()
      } else {
        expect(observed, name).toMatchObject(expected)
      }
    }
    expect(resolveNativeChatImageRuntimeContextForOwner(base, 'tab-1', null)).toBeNull()
  })
})