package plugins

import (
	"os"
	"path/filepath"
	"strings"
	"testing"

	core "git-ssh.u1680832.nyat.app/weichen/Agent-System-Core.git"
)

// writeAgentPlugin 写一个带 agents/ 资产的插件目录。
func writeAgentPlugin(t *testing.T, dir, id, agentJSON string) {
	t.Helper()
	root := filepath.Join(dir, id)
	os.MkdirAll(filepath.Join(root, "agents"), 0o755)
	write := func(rel, content string) {
		if err := os.WriteFile(filepath.Join(root, rel), []byte(content), 0o644); err != nil {
			t.Fatal(err)
		}
	}
	write("plugin.json", `{"id":"`+id+`","name":"代理插件","version":"0.1.0","apiVersion":"`+core.PluginAPIVersion+`",
		"provides":{"agents":["reviewer"]}}`)
	write("agents/reviewer.json", agentJSON)
}

func TestAgentAssetLoads(t *testing.T) {
	h, _, dir := newHost(t)
	writeAgentPlugin(t, dir, "agentplug", `{"id":"rdm-reviewer","title":"章节评审","instructions":"逐条核对来源","tools":["read_file","grep"]}`)
	if err := h.LoadDir()["agentplug"]; err != nil {
		t.Fatal(err)
	}
	for _, ld := range h.List() {
		if ld.Manifest.ID != "agentplug" {
			continue
		}
		if len(ld.Agents) != 1 || ld.Agents[0].ID != "rdm-reviewer" || len(ld.Agents[0].Tools) != 2 {
			t.Fatalf("agents = %+v", ld.Agents)
		}
		return
	}
	t.Fatal("plugin not loaded")
}

// TestAgentAssetBansHostOnlyKeys：插件代理声明 hooks/mcp/permissionMode 时
// 整批拒绝且错误定位到字段（N1 WP1 验收条款）。
func TestAgentAssetBansHostOnlyKeys(t *testing.T) {
	for _, key := range []string{"hooks", "mcp", "permissionMode"} {
		h, _, dir := newHost(t)
		writeAgentPlugin(t, dir, "badplug", `{"id":"x","`+key+`":{}}`)
		err := h.LoadDir()["badplug"]
		if err == nil {
			t.Fatalf("%s accepted", key)
		}
		if !strings.Contains(err.Error(), "不得声明 "+key) {
			t.Fatalf("%s error 未定位到字段: %v", key, err)
		}
	}
}

func TestAgentAssetRejectsUnknownKeysAndMissingID(t *testing.T) {
	h, _, dir := newHost(t)
	writeAgentPlugin(t, dir, "unknownkey", `{"id":"x","bogus":1}`)
	if err := h.LoadDir()["unknownkey"]; err == nil {
		t.Fatal("unknown key accepted")
	}
	h2, _, dir2 := newHost(t)
	writeAgentPlugin(t, dir2, "noid", `{"title":"无 id"}`)
	if err := h2.LoadDir()["noid"]; err == nil {
		t.Fatal("missing id accepted")
	}
}