import { describe, it, expect } from 'vitest'
import { D3ROError, ErrorCode } from '@d3ro/core/errors'
import { getDictationTemplateService } from '../../src/main/services/DictationTemplateService'
import { getMeetingDocTemplateService } from '../../src/main/services/MeetingDocTemplateService'
import { useRedHarness } from './harness'
import { USER_TEXT } from './fixtures'

useRedHarness()

describe('유스케이스: 딕테이션 템플릿 CRUD / 필드 세션', () => {
  it('빌트인 템플릿이 있다', () => {
    const all = getDictationTemplateService().getAll()
    expect(all.length).toBeGreaterThanOrEqual(3)
    expect(all.some((t) => t.id === 'builtin-email')).toBe(true)
  })

  it('사용자 템플릿을 만든다', () => {
    const created = getDictationTemplateService().create({
      name: '내 템플릿',
      description: 'd',
      fields: [{ id: 'f1', name: 'f1', label: 'F', promptText: 'say', required: true, maxDurationSec: 10 }],
      outputFormat: '{{f1}}',
    })
    expect(created.isBuiltin).toBe(false)
    expect(getDictationTemplateService().getById(created.id)?.name).toBe('내 템플릿')
  })

  it('없는 템플릿 수정은 TemplateNotFound 다', () => {
    expect(() => getDictationTemplateService().update({ id: 'missing', name: 'x' })).toThrow(
      D3ROError,
    )
    try {
      getDictationTemplateService().update({ id: 'missing', name: 'x' })
    } catch (err) {
      expect((err as D3ROError).code).toBe(ErrorCode.TemplateNotFound)
    }
  })

  it('빌트인 삭제는 거부된다', () => {
    expect(() => getDictationTemplateService().delete('builtin-email')).toThrow(D3ROError)
    expect(getDictationTemplateService().getById('builtin-email')).not.toBeNull()
  })

  it('사용자 템플릿은 삭제된다', () => {
    const created = getDictationTemplateService().create({
      name: 'del',
      description: '',
      fields: [{ id: 'f1', name: 'f1', label: 'F', promptText: 'p', required: false, maxDurationSec: 5 }],
      outputFormat: '{{f1}}',
    })
    getDictationTemplateService().delete(created.id)
    expect(getDictationTemplateService().getById(created.id)).toBeNull()
  })

  it('없는 템플릿 세션 시작은 TemplateNotFound 다', () => {
    expect(() => getDictationTemplateService().startSession('missing')).toThrow(D3ROError)
  })

  it('이메일 템플릿 세션을 시작하고 필드를 채운다', () => {
    const svc = getDictationTemplateService()
    svc.startSession('builtin-email')
    const state = svc.getSessionState()
    expect(state?.templateId).toBe('builtin-email')
    expect(state?.currentField?.id).toBe('recipient')
    svc.setFieldValue('recipient', 'a@b.c')
    expect(svc.getSessionState()?.currentField?.id).toBe('subject')
  })

  it('이미 세션이 있으면 재시작은 TemplateSessionAlreadyActive 다', () => {
    const svc = getDictationTemplateService()
    svc.startSession('builtin-email')
    expect(() => svc.startSession('builtin-report')).toThrow(D3ROError)
    try {
      svc.startSession('builtin-report')
    } catch (err) {
      expect((err as D3ROError).code).toBe(ErrorCode.TemplateSessionAlreadyActive)
    }
  })

  it('세션 없이 필드 입력은 TemplateSessionNotActive 다', () => {
    expect(() => getDictationTemplateService().setFieldValue('x', 'y')).toThrow(D3ROError)
  })

  it('세션을 취소하면 상태가 null 이다', () => {
    const svc = getDictationTemplateService()
    svc.startSession('builtin-email')
    svc.cancelSession()
    expect(svc.getSessionState()).toBeNull()
  })

  it('모든 필드를 채우면 출력이 치환되고 세션이 끝난다', () => {
    const svc = getDictationTemplateService()
    let output: string | null = null
    svc.on('session-completed', (e: { outputText: string }) => {
      output = e.outputText
    })
    svc.startSession('builtin-email')
    svc.setFieldValue('recipient', 'to@x.test')
    svc.setFieldValue('subject', 'hello')
    svc.setFieldValue('body', USER_TEXT.KO)
    expect(svc.getSessionState()).toBeNull()
    expect(output).toContain('to@x.test')
    expect(output).toContain('hello')
    expect(output).toContain(USER_TEXT.KO)
  })

  it('빈 필드 템플릿은 시작할 수 없다', () => {
    const created = getDictationTemplateService().create({
      name: 'nofield',
      description: '',
      fields: [],
      outputFormat: 'x',
    })
    expect(() => getDictationTemplateService().startSession(created.id)).toThrow(D3ROError)
  })
})

describe('유스케이스: 회의 문서 템플릿 CRUD', () => {
  it('빌트인 회의록/보고서/아이디어/마인드맵이 있다', () => {
    const all = getMeetingDocTemplateService().getAll()
    expect(all.some((t) => t.id === 'builtin-minutes')).toBe(true)
    expect(all.some((t) => t.id === 'builtin-report')).toBe(true)
    expect(all.some((t) => t.id === 'builtin-idea-note')).toBe(true)
    expect(all.some((t) => t.id === 'builtin-mindmap')).toBe(true)
  })

  it('커스텀 문서 템플릿을 만든다', () => {
    const created = getMeetingDocTemplateService().create({
      name: '내 양식',
      description: 'd',
      systemPrompt: '요약만',
    })
    expect(created.isBuiltin).toBe(false)
    expect(getMeetingDocTemplateService().getById(created.id)?.systemPrompt).toBe('요약만')
  })

  it('없는 템플릿 수정은 MeetingDocTemplateNotFound 다', () => {
    expect(() => getMeetingDocTemplateService().update({ id: 'missing', name: 'x' })).toThrow(
      D3ROError,
    )
    try {
      getMeetingDocTemplateService().update({ id: 'missing', name: 'x' })
    } catch (err) {
      expect((err as D3ROError).code).toBe(ErrorCode.MeetingDocTemplateNotFound)
    }
  })

  it('빌트인 삭제는 MeetingDocTemplateBuiltinDelete 다', () => {
    expect(() => getMeetingDocTemplateService().delete('builtin-minutes')).toThrow(D3ROError)
    try {
      getMeetingDocTemplateService().delete('builtin-minutes')
    } catch (err) {
      expect((err as D3ROError).code).toBe(ErrorCode.MeetingDocTemplateBuiltinDelete)
    }
  })

  it('커스텀 템플릿은 삭제된다', () => {
    const created = getMeetingDocTemplateService().create({
      name: 'del',
      description: '',
      systemPrompt: 'p',
    })
    getMeetingDocTemplateService().delete(created.id)
    expect(getMeetingDocTemplateService().getById(created.id)).toBeNull()
  })

  it('없는 템플릿 삭제는 MeetingDocTemplateNotFound 다', () => {
    expect(() => getMeetingDocTemplateService().delete('missing')).toThrow(D3ROError)
  })

  it('템플릿 이름 수정이 반영된다', () => {
    const created = getMeetingDocTemplateService().create({
      name: 'old',
      description: '',
      systemPrompt: 'p',
    })
    const updated = getMeetingDocTemplateService().update({ id: created.id, name: 'new' })
    expect(updated.name).toBe('new')
  })
})