package dock

import (
	"encoding/json"
	"time"

	"onesvm.com/onesvm/browser-server/internal/contract"
)

// cdpApplySession UA + Cookie 注入（失败不致命：Lightpanda 可能缺 Network.setCookies）。
func cdpApplySession(send func(string, any, time.Duration) (json.RawMessage, error), sess *contract.SessionAttach) {
	ua := cdpUA
	if sess != nil && sess.UserAgent != "" {
		ua = sess.UserAgent
	}
	_, _ = send("Network.setUserAgentOverride", map[string]any{"userAgent": ua}, 8*time.Second)
	if sess == nil || len(sess.Cookies) == 0 {
		return
	}
	payload := make([]map[string]any, 0, len(sess.Cookies))
	for _, c := range sess.Cookies {
		if c.Name == "" || c.Value == "" {
			continue
		}
		item := map[string]any{"name": c.Name, "value": c.Value, "path": c.Path}
		if item["path"] == "" {
			item["path"] = "/"
		}
		if c.Domain != "" {
			item["domain"] = c.Domain
		} else if sess.ETLD != "" {
			item["domain"] = sess.ETLD
		}
		payload = append(payload, item)
	}
	if len(payload) == 0 {
		return
	}
	_, _ = send("Network.setCookies", map[string]any{"cookies": payload}, 8*time.Second)
}

// cdpCollectCookies 拉取当前页一等 Cookie（失败返回 nil）。
func cdpCollectCookies(send func(string, any, time.Duration) (json.RawMessage, error), pageURL string) []contract.Cookie {
	raw, err := send("Network.getCookies", map[string]any{"urls": []string{pageURL}}, 5*time.Second)
	if err != nil || len(raw) == 0 {
		return nil
	}
	var wrap struct {
		Cookies []struct {
			Name    string  `json:"name"`
			Value   string  `json:"value"`
			Domain  string  `json:"domain"`
			Path    string  `json:"path"`
			Expires float64 `json:"expires"`
		} `json:"cookies"`
	}
	if json.Unmarshal(raw, &wrap) != nil {
		return nil
	}
	out := make([]contract.Cookie, 0, len(wrap.Cookies))
	for _, c := range wrap.Cookies {
		if c.Name == "" || c.Value == "" {
			continue
		}
		item := contract.Cookie{Name: c.Name, Value: c.Value, Domain: c.Domain, Path: c.Path}
		if c.Expires > 0 {
			item.Expires = int64(c.Expires)
		}
		out = append(out, item)
		if len(out) >= 20 {
			break
		}
	}
	return out
}