import { logger } from "@/logger"
// src/plugins/errorHandler.js
// 错误处理中间件插件

async function formatError(ctx, status, message, stack) {
    const accept = ctx.accepts("json", "html", "text")
    const isDev = process.env.NODE_ENV === "development"
    if (accept === "json") {
        ctx.type = "application/json"
        ctx.body = isDev && stack ? { success: false, error: message, stack } : { success: false, error: message }
    } else if (accept === "html") {
        ctx.type = "html"
        await ctx.render("error/index", { status, message, stack, isDev })
    } else {
        ctx.type = "text"
        ctx.body = isDev && stack ? `${status} - ${message}\n${stack}` : `${status} - ${message}`
    }
    ctx.status = status
}

export default function errorHandler() {
    return async (ctx, next) => {
        // 拦截 Chrome DevTools 探测请求，直接返回 204
        if (ctx.path === "/.well-known/appspecific/com.chrome.devtools.json") {
            ctx.status = 204
            ctx.body = ""
            return
        }
        try {
            await next()
            if (ctx.status === 404) {
                await formatError(ctx, 404, "Resource not found")
            }
        } catch (err) {
            logger.error(err)
            const isDev = process.env.NODE_ENV === "development"
            if (isDev && err.stack) {
                console.error(err.stack)
            }
            await formatError(ctx, err.statusCode || 500, err.message || err || "Internal server error", isDev ? err.stack : undefined)
        }
    }
}