import request from '@/utils/request'

export type FollowupKind = 'diagnosis' | 'blood' | 'diet' | 'exercise' | 'tracking_note'
export type FollowupValue = string | number | boolean | null | Array<string | number>
export type FollowupValues = Record<string, FollowupValue>
export interface FollowupField {
    key: string
    label: string
    type: 'text' | 'number' | 'select' | 'multiselect' | 'date'
    options?: Array<{ label: string; value: string | number }>
    readonly?: boolean
}
export type FollowupFields = Record<FollowupKind, FollowupField[]>
export type FollowupAudioChannel = 0 | 1
export type FollowupChannelRoles = 'unconfirmed' | 'left_service' | 'right_service'
export interface FollowupTranscriptSegment {
    id: string
    start_ms: number
    end_ms: number
    text: string
    channel?: FollowupAudioChannel
}
export interface FollowupCapabilities {
    enabled: boolean
    audio_verified: boolean
    preview_only?: boolean
    preview_ready?: boolean
    can_review?: boolean
    test_scope_allowed?: boolean
    can_upload: boolean
    can_apply: boolean
    can_daily: boolean
    models: Array<{ value: string; label: string }>
    limits: { max_bytes: number; max_seconds: number; chunk_bytes: number }
    fields: FollowupFields
}
export interface FollowupReviewItem {
    id: string
    kind: FollowupKind
    values: FollowupValues
    record_date: string | null
    record_time: string | null
    time_period: string | null
    time_estimated: boolean
    time_text: string
    date_text: string
    evidence: Array<{ text: string; start_ms?: number; end_ms?: number; segment_id?: string; position_type?: 'segment'; channel?: FollowupAudioChannel }>
    needs_review: boolean
    selected: boolean
    target_id: number | null
    current_values: FollowupValues
    expected_hash: string
    conflict: boolean
    possible_duplicate: boolean
    candidates?: Array<{
        id: number
        values: FollowupValues
        record_time: string | null
        time_estimated: boolean
        time_period: string | null
        delete_time?: number | null
    }>
}
export interface FollowupTaskSummary {
    id: number
    diagnosis_id: number
    file_name: string
    recorded_at: string
    status: string
    stage: string
    error_code: string
    error_message: string
    version: number
    created_at: number | string
    expires_at: number | string
    can_retry: boolean
    audio_available: boolean
    preview_only?: boolean
    transcript_available?: boolean
    pipeline_progress?: { transcribed: number; total: number }
}
export interface FollowupTaskDetail extends FollowupTaskSummary {
    summary: string
    transcript: string
    transcript_segments?: FollowupTranscriptSegment[]
    channel_roles?: FollowupChannelRoles
    uncertainties: unknown[]
    items: FollowupReviewItem[]
    fields?: FollowupFields
    applied_items: unknown[]
    review_refreshed?: boolean
}
interface Envelope<T> { code: number; msg?: string; data: T }
export class FollowupAudioError extends Error {
    constructor(message: string, public readonly code = '') { super(message); this.name = 'FollowupAudioError' }
}
const options = { isTransformResponse: false, ignoreCancelToken: true, isOpenRetry: false, retryCount: 0 }
const base = '/tcm.followupAudio/'
function unwrap<T>(response: Envelope<T>): T {
    if (response.code !== 1) {
        const data = response.data
        const code = data && typeof data === 'object' && 'code' in data ? String(data.code) : ''
        throw new FollowupAudioError(response.msg || '回访录音请求失败，请刷新任务状态后确认', code)
    }
    return response.data
}
async function get<T>(name: string, params: Record<string, number>, signal?: AbortSignal): Promise<T> {
    return unwrap(await request.get<Envelope<T>>({ url: base + name, params, signal }, options))
}
async function post<T>(name: string, data: unknown, signal?: AbortSignal): Promise<T> {
    return unwrap(await request.post<Envelope<T>>({ url: base + name, data, signal, timeout: 120000 }, options))
}
export const followupAudioCapabilities = (diagnosisId: number, signal?: AbortSignal) => get<FollowupCapabilities>('capabilities', { diagnosis_id: diagnosisId }, signal)
export const followupAudioLists = (diagnosisId: number, signal?: AbortSignal) => get<{ items: FollowupTaskSummary[] }>('lists', { diagnosis_id: diagnosisId }, signal)
export const followupAudioDetail = (id: number, signal?: AbortSignal) => get<FollowupTaskDetail>('detail', { id }, signal)
export const followupAudioUploadSession = (data: { diagnosis_id: number; file_name: string; total_bytes: number }, signal?: AbortSignal) => post<{ upload_id: string; chunk_bytes: number }>('uploadSession', data, signal)
export async function followupAudioUploadChunk(uploadId: string, index: number, file: Blob, signal?: AbortSignal) {
    const data = new FormData()
    data.append('upload_id', uploadId)
    data.append('index', String(index))
    data.append('file', file, `chunk-${index}`)
    return unwrap(await request.post<Envelope<{ index: number; received: boolean }>>({
        url: base + 'uploadChunk', data, signal, timeout: 120000,
        headers: { 'Content-Type': 'multipart/form-data' }
    }, options))
}
export const followupAudioUploadComplete = (uploadId: string, signal?: AbortSignal) => post<{ upload_id: string; duration_seconds: number; sha256: string }>('uploadComplete', { upload_id: uploadId }, signal)
export const followupAudioCreate = (data: { diagnosis_id: number; upload_id: string; recorded_at: string; model_key: string }, signal?: AbortSignal) => post<{ task_id: number; status: string; reused?: boolean; reuse_message?: string }>('create', data, signal)
export const followupAudioSaveDraft = (data: { id: number; version: number; items: FollowupReviewItem[]; channel_roles?: FollowupChannelRoles }, signal?: AbortSignal) => post<FollowupTaskDetail>('saveDraft', data, signal)
export const followupAudioApply = (data: { id: number; version: number; items: FollowupReviewItem[] }, signal?: AbortSignal) => post<{ id: number; status: 'applied'; applied_items: unknown[] }>('apply', data, signal)
export const followupAudioRetry = (id: number, signal?: AbortSignal) => post<{ id: number; status: string }>('retry', { id }, signal)
/** The existing request interceptor puts the token in a header, never in the audio URL. */
export async function followupAudioBlob(id: number, signal?: AbortSignal): Promise<Blob> {
    const blob = await request.get<Blob>({ url: base + 'audio', params: { id }, responseType: 'blob', signal, timeout: 120000 }, options)
    if (blob.type.includes('json')) {
        const response: Envelope<unknown> = JSON.parse(await blob.text())
        unwrap(response)
        throw new FollowupAudioError('录音响应不是音频文件')
    }
    return blob
}