package loop

import (
	"context"
	"strings"
	"sync"
	"testing"

	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/capacity"
	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/model"
)

// TestRun_OutsideAllowSet_SoftJudgeFedBackAndAudited 锁住裁决 14.4.2
// 的「加软判并回」全链路：闲聊轮只广告 quiet 允许集，模型却调了
// 允许集外的 web-search —— 调用不被硬阻断（确实执行，能力≠边界），
// 但判定并回：not_allowed 提示随 tool result 回灌给模型，
// 同一条判定落进既有审计通道（design/11 §3 §8）。
func TestRun_OutsideAllowSet_SoftJudgeFedBackAndAudited(t *testing.T) {
	t.Parallel()
	call := model.Response{Model: "m", ToolCalls: []model.ToolCall{{
		ID:   "call_soft_1",
		Name: "web-search",
		Args: map[string]any{"q": "天气"},
	}}}
	ad := &mockAdapter{stream: []mgResp{{resp: call}, {resp: model.Response{Model: "m", Content: "done"}}}}
	td := dispatcherWith(t,
		&mockTool{name: "terminal", result: "ok"},
		&mockTool{name: "web-search", result: "web result"},
	)
	a := newTestAgent(t, ad, td)
	var mu sync.Mutex
	var audited []AuditEvent
	l := New(Options{
		Agent:     a,
		MaxRounds: 8,
		Capacity:  capacity.New(capacity.Config{Enabled: true, MinConfidence: 0.6}),
		OnStream:  func(model.StreamEvent) {},
		OnAudit: func(ev AuditEvent) {
			mu.Lock()
			audited = append(audited, ev)
			mu.Unlock()
		},
	})

	res, err := l.Run(context.Background(), "sess", []model.Message{model.TextMessage(model.RoleUser, "你好呀，抱抱你")})
	if err != nil {
		t.Fatalf("Run: %v", err)
	}

	// ① 不硬阻断：越界调用确实执行了。
	if res.ToolCallsExecuted != 1 {
		t.Fatalf("ToolCallsExecuted = %d, want 1（软判不得阻断执行）", res.ToolCallsExecuted)
	}
	// ② 该轮模型只被广告了 quiet 允许集 —— 发布出去的允许集与它一致。
	if len(ad.streamReqs) == 0 {
		t.Fatal("no streaming request captured")
	}
	set := toolSet(ad.streamReqs[0].Tools)
	if !hasAll(set, "terminal") || set["web-search"] {
		t.Fatalf("quiet tools = %v, want terminal only", toolNames(ad.streamReqs[0].Tools))
	}
	// ③ 软判并回：模型收到的 tool result 带 not_allowed 提示与来源标签。
	last := ad.streamReqs[len(ad.streamReqs)-1].Messages
	msg := last[len(last)-1]
	if msg.Role != model.RoleTool {
		t.Fatalf("last message role = %q, want tool", msg.Role)
	}
	text := msg.Content[0].Text
	for _, want := range []string{"not_allowed", "web-search", "capacity:quiet", "web result"} {
		if !strings.Contains(text, want) {
			t.Fatalf("tool result %q missing %q", text, want)
		}
	}
	// ④ 可观测：判定落进既有审计通道，前端小字与审计轨迹都能看到。
	mu.Lock()
	defer mu.Unlock()
	if len(audited) != 1 {
		t.Fatalf("audit events = %d, want 1 (%+v)", len(audited), audited)
	}
	if audited[0].What != auditToolRejectNotAllowed {
		t.Fatalf("audit what = %q, want %q", audited[0].What, auditToolRejectNotAllowed)
	}
	if audited[0].Who != "owner" {
		t.Fatalf("audit who = %q, want owner", audited[0].Who)
	}
	for _, want := range []string{"not_allowed", "web-search"} {
		if !strings.Contains(audited[0].Result, want) {
			t.Fatalf("audit result = %q missing %q", audited[0].Result, want)
		}
	}
}

// TestRun_InsideAllowSet_NoSoftJudge 是对照组：调用就在本轮允许集内时，
// 不产生软判 —— 结果不被包装、也不落审计（软判只在越界时说话）。
func TestRun_InsideAllowSet_NoSoftJudge(t *testing.T) {
	t.Parallel()
	call := model.Response{Model: "m", ToolCalls: []model.ToolCall{{
		ID:   "call_soft_2",
		Name: "terminal",
		Args: map[string]any{},
	}}}
	ad := &mockAdapter{stream: []mgResp{{resp: call}, {resp: model.Response{Model: "m", Content: "done"}}}}
	td := dispatcherWith(t,
		&mockTool{name: "terminal", result: "ok"},
		&mockTool{name: "web-search", result: "web result"},
	)
	a := newTestAgent(t, ad, td)
	var mu sync.Mutex
	var audited []AuditEvent
	l := New(Options{
		Agent:     a,
		MaxRounds: 8,
		Capacity:  capacity.New(capacity.Config{Enabled: true, MinConfidence: 0.6}),
		OnStream:  func(model.StreamEvent) {},
		OnAudit: func(ev AuditEvent) {
			mu.Lock()
			audited = append(audited, ev)
			mu.Unlock()
		},
	})

	res, err := l.Run(context.Background(), "sess", []model.Message{model.TextMessage(model.RoleUser, "你好呀，抱抱你")})
	if err != nil {
		t.Fatalf("Run: %v", err)
	}
	if res.ToolCallsExecuted != 1 {
		t.Fatalf("ToolCallsExecuted = %d, want 1", res.ToolCallsExecuted)
	}
	last := ad.streamReqs[len(ad.streamReqs)-1].Messages
	text := last[len(last)-1].Content[0].Text
	if strings.Contains(text, "not_allowed") {
		t.Fatalf("tool result %q must not carry a soft notice for an allowed call", text)
	}
	mu.Lock()
	defer mu.Unlock()
	if len(audited) != 0 {
		t.Fatalf("audit events = %d, want 0 for an allowed call", len(audited))
	}
}

// TestRun_CapacityDisabled_NoSoftJudge 守住 design/14 §1 红线：没有一个
// 允许集被收敛（capacity 未启用）时，调用任何工具都不产生软判 ——
// 软判只描述「本轮允许集」，绝不把决策层变成能力边界。
func TestRun_CapacityDisabled_NoSoftJudge(t *testing.T) {
	t.Parallel()
	call := model.Response{Model: "m", ToolCalls: []model.ToolCall{{
		ID:   "call_soft_3",
		Name: "web-search",
		Args: map[string]any{"q": "天气"},
	}}}
	ad := &mockAdapter{stream: []mgResp{{resp: call}, {resp: model.Response{Model: "m", Content: "done"}}}}
	td := dispatcherWith(t,
		&mockTool{name: "terminal", result: "ok"},
		&mockTool{name: "web-search", result: "web result"},
	)
	a := newTestAgent(t, ad, td)
	var mu sync.Mutex
	var audited []AuditEvent
	l := New(Options{
		Agent:     a,
		MaxRounds: 8,
		OnStream:  func(model.StreamEvent) {},
		OnAudit: func(ev AuditEvent) {
			mu.Lock()
			audited = append(audited, ev)
			mu.Unlock()
		},
	})

	res, err := l.Run(context.Background(), "sess", []model.Message{model.TextMessage(model.RoleUser, "你好呀，抱抱你")})
	if err != nil {
		t.Fatalf("Run: %v", err)
	}
	if res.ToolCallsExecuted != 1 {
		t.Fatalf("ToolCallsExecuted = %d, want 1", res.ToolCallsExecuted)
	}
	last := ad.streamReqs[len(ad.streamReqs)-1].Messages
	if text := last[len(last)-1].Content[0].Text; strings.Contains(text, "not_allowed") {
		t.Fatalf("tool result %q must not carry a soft notice without an allow set", text)
	}
	mu.Lock()
	defer mu.Unlock()
	if len(audited) != 0 {
		t.Fatalf("audit events = %d, want 0 without an allow set", len(audited))
	}
}