import fs from 'node:fs'
import path from 'node:path'
import { z } from 'zod'

const ConfigSchema = z.object({
	rpcHttp: z.string().url(),
	rpcWs: z.string().url(),
	positionCopy: z.object({
		enabled: z.boolean().default(false),
		config: z.record(z.string().min(1), z.object({
			minimumDeposit: z.number().min(0),
			copyMount: z.record(z.string().min(1), z.number().min(0))
		})),
		url: z.string().url()
	}),
	openPosition: z.object({
		enabled: z.boolean().default(false),
		programId: z.string().min(32),
		logIncludes: z.array(z.string().min(1)).default([])
	}),
	closePosition: z.object({
		userAddress: z.string().min(32),
		discordWebhookUrl: z.string().url(),
		pageSize: z.number().min(1).max(100).default(50),
		lpCloseApiUrl: z.string().min(1).default('http://91.108.80.73/api/lp-index/lp-close'),
		lpCloseAuth: z.string().min(1).default('Basic YWRtaW46YzU4ODk5Njc=')
	}).optional(),
	blacklist: z.array(z.string().min(32)).default([]),
	discordWebhookUrl: z.string().url()
})

export type AppConfig = z.infer<typeof ConfigSchema>;

export function loadConfig(): AppConfig {
	const configPath = process.env.CONFIG_PATH ?? path.resolve(process.cwd(), 'config.json')
	if (!fs.existsSync(configPath)) {
		throw new Error(
			`找不到配置文件：${configPath}\n` +
        '请复制 config.example.json 为 config.json 并填写你的 rpc/ws 与 openPosition 配置'
		)
	}
	const raw = fs.readFileSync(configPath, 'utf-8')
	const parsed = JSON.parse(raw) as unknown
	return ConfigSchema.parse(parsed)
}