import { API_BASE_URL, ApiRequestError } from './auth'

export type ConfigOption = {
	value: string
	label: string
	desc?: string
}

export type ConfigOptions = {
	departments: ConfigOption[]
	titles: ConfigOption[]
	experiences: ConfigOption[]
}

export type ClinicalConfigPayload = {
	department: number
	title_name: string
	practice_years: string
}

export type ClinicalConfigResult = Record<string, unknown>

export const MOCK_CONFIG_OPTIONS: ConfigOptions = {
	departments: [
		{ value: 'im', label: '内科', desc: '心内、呼吸、消化、肾内等临床场景' },
		{ value: 'sur', label: '外科', desc: '普外、骨科、神外、胸外等临床场景' },
		{ value: 'ped', label: '儿科', desc: '儿童常见病、急重症与沟通训练' },
		{ value: 'obg', label: '妇产科', desc: '围产、妇科、产科急症训练' },
		{ value: 'er', label: '急诊科', desc: '分诊、抢救、危急值处置训练' },
		{ value: 'icu', label: '重症医学科', desc: '危重症评估与多学科决策训练' }
	],
	titles: [
		{ value: 'resident', label: '住院医师', desc: '强化基础诊疗路径与病历思维' },
		{ value: 'attending', label: '主治医师', desc: '提升独立诊疗和带教表达' },
		{ value: 'associate_chief', label: '副主任医师', desc: '复杂病例决策与团队协作' },
		{ value: 'chief', label: '主任医师', desc: '疑难病例、质控和教学管理' }
	],
	experiences: [
		{ value: '1-3', label: '1-3年', desc: '基础病例训练优先' },
		{ value: '3-5', label: '3-5年', desc: '进阶诊疗路径优先' },
		{ value: '5-10', label: '5-10年', desc: '复杂病例推演优先' },
		{ value: '10+', label: '10年以上', desc: '疑难病例与带教模拟优先' }
	]
}

export function fetchConfigOptions() {
	return Promise.resolve({
		options: MOCK_CONFIG_OPTIONS,
		defaults: {
			department: 'im',
			title: 'resident',
			experience: '1-3'
		},
		mentor: {
			name: '王主任',
			message: '欢迎回来！请配置执业信息，开始精准带教模拟。'
		}
	})
}

function readAccessToken() {
	try {
		return uni.getStorageSync('clinical-thinking-access-token') || ''
	} catch {
		return ''
	}
}

function readErrorMessage(data: unknown, fallback: string) {
	if (data && typeof data === 'object') {
		const payload = data as Record<string, unknown>
		const message = payload.message || payload.detail || payload.error
		if (typeof message === 'string' && message.trim()) return message
	}
	return fallback
}

export function saveClinicalConfig(payload: ClinicalConfigPayload): Promise<ClinicalConfigResult> {
	return new Promise((resolve, reject) => {
		const token = readAccessToken()
		const header: Record<string, string> = {
			'Content-Type': 'application/json'
		}

		if (token) {
			header.Authorization = `Bearer ${token}`
		}

		uni.request({
			url: `${API_BASE_URL}/user/profile/config/`,
			method: 'POST',
			timeout: 10000,
			header,
			data: payload,
			success: response => {
				if (response.statusCode >= 200 && response.statusCode < 300) {
					resolve(response.data as ClinicalConfigResult)
					return
				}
				const data = response.data as Record<string, unknown> | undefined
				const code = typeof data?.code === 'string' ? data.code : undefined
				reject(new ApiRequestError(readErrorMessage(response.data, `保存失败（${response.statusCode}）`), code, response.statusCode))
			},
			fail: error => {
				reject(new ApiRequestError(error.errMsg || '无法连接服务'))
			}
		})
	})
}