// Copyright 2026 Moko Consulting <hello@mokoconsulting.tech>
// SPDX-License-Identifier: GPL-3.0-or-later

package setting

import "time"

// CDN holds configuration for the built-in CDN asset delivery system.
var CDN = struct {
	Enabled        bool
	Domain         string        // e.g. "cdn.mokoconsulting.tech"
	CacheTTL       time.Duration // Cache-Control max-age for CDN responses
	AllowedOrigins []string      // CORS origins allowed to fetch CDN assets
	AllowedIPs     []string      // IP/CIDR allowlist (empty = allow all)
	AllowedDomains []string      // Referrer domain allowlist (empty = allow all)
	MaxFileSize    int64         // max file size to serve (bytes)
}{
	Enabled:     false,
	Domain:      "",
	CacheTTL:    24 * time.Hour,
	MaxFileSize: 100 * 1024 * 1024, // 100MB
}

func loadCDNFrom(cfg ConfigProvider) {
	sec := cfg.Section("cdn")
	CDN.Enabled = sec.Key("ENABLED").MustBool(false)
	CDN.Domain = sec.Key("DOMAIN").String()
	CDN.CacheTTL = sec.Key("CACHE_TTL").MustDuration(CDN.CacheTTL)
	CDN.MaxFileSize = sec.Key("MAX_FILE_SIZE").MustInt64(CDN.MaxFileSize)

	CDN.AllowedOrigins = sec.Key("ALLOWED_ORIGINS").Strings(",")
	CDN.AllowedIPs = sec.Key("ALLOWED_IPS").Strings(",")
	CDN.AllowedDomains = sec.Key("ALLOWED_DOMAINS").Strings(",")
}