//go:build llm_script

package main

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

func sampleReportForV1() *ReportV3 {
	return &ReportV3{
		Date:        "2026-05-13",
		GeneratedAt: "2026-05-13T09:30:00+08:00",
		TotalModels: 504,
		AllModels: []ModelInfo{
			{
				Name:            "DeepSeek-V4-Flash",
				ProviderName:    "DeepSeek",
				ProviderCountry: "CN",
				ContextLength:   262144,
				InputPrice:      0.30,
				OutputPrice:     1.20,
				Currency:        "USD",
				OperatorName:    "OpenRouter",
				OperatorType:    "reseller",
				Region:          "global",
				SceneTags:       []SceneTag{SceneCode, SceneReasoning},
			},
			{
				Name:            "glm-5",
				ProviderName:    "Zhipu",
				ProviderCountry: "CN",
				ContextLength:   131072,
				InputPrice:      0,
				OutputPrice:     0,
				Currency:        "CNY",
				IsFree:          true,
				OperatorName:    "Zhipu",
				OperatorType:    "official",
				Region:          "cn",
				SceneTags:       []SceneTag{SceneWriting, SceneChat},
			},
			{
				Name:            "claude-3.7-sonnet",
				ProviderName:    "Anthropic",
				ProviderCountry: "US",
				ContextLength:   200000,
				InputPrice:      3.0,
				OutputPrice:     15.0,
				Currency:        "USD",
				OperatorName:    "Anthropic",
				OperatorType:    "official",
				Region:          "global",
				SceneTags:       []SceneTag{SceneWriting, SceneChat},
			},
			{
				Name:            "qwen-vl-max",
				ProviderName:    "Alibaba",
				ProviderCountry: "CN",
				ContextLength:   65536,
				InputPrice:      0.8,
				OutputPrice:     2.4,
				Currency:        "CNY",
				OperatorName:    "DashScope",
				OperatorType:    "cloud",
				Region:          "cn",
				SceneTags:       []SceneTag{SceneVision},
			},
		},
		FreeModels: []ModelInfo{
			{
				Name:            "glm-5",
				ProviderName:    "Zhipu",
				ProviderCountry: "CN",
				ContextLength:   131072,
				Currency:        "CNY",
				IsFree:          true,
				OperatorName:    "Zhipu",
				OperatorType:    "official",
				Region:          "cn",
				SceneTags:       []SceneTag{SceneWriting, SceneChat},
			},
			{
				Name:            "DeepSeek-V4-Flash",
				ProviderName:    "DeepSeek",
				ProviderCountry: "CN",
				ContextLength:   262144,
				Currency:        "USD",
				IsFree:          true,
				OperatorName:    "OpenRouter",
				OperatorType:    "reseller",
				Region:          "global",
				SceneTags:       []SceneTag{SceneCode, SceneReasoning},
			},
			{
				Name:            "mystery-free-model",
				ProviderName:    "Unknown",
				ProviderCountry: "unknown",
				ContextLength:   65536,
				Currency:        "USD",
				IsFree:          true,
				OperatorName:    "Unknown Gateway",
				OperatorType:    "self_hosted_gateway",
				Region:          "global",
				SceneTags:       []SceneTag{SceneChat},
			},
		},
		FreeTop20: []ModelInfo{
			{
				Name:            "glm-5",
				ProviderName:    "Zhipu",
				ProviderCountry: "CN",
				ContextLength:   131072,
				Currency:        "CNY",
				IsFree:          true,
				OperatorName:    "Zhipu",
				OperatorType:    "official",
				Region:          "cn",
			},
		},
		IntlTop5: []ModelInfo{
			{
				Name:            "DeepSeek-V4-Flash",
				ProviderName:    "DeepSeek",
				ProviderCountry: "CN",
				ContextLength:   262144,
				InputPrice:      0.30,
				OutputPrice:     1.20,
				Currency:        "USD",
				OperatorName:    "OpenRouter",
				OperatorType:    "reseller",
				Region:          "global",
				SceneTags:       []SceneTag{SceneCode, SceneReasoning},
			},
		},
		DomesticTop10: []ModelInfo{
			{
				Name:            "qwen-vl-max",
				ProviderName:    "Alibaba",
				ProviderCountry: "CN",
				ContextLength:   65536,
				InputPrice:      0.8,
				OutputPrice:     2.4,
				Currency:        "CNY",
				OperatorName:    "DashScope",
				OperatorType:    "cloud",
				Region:          "cn",
				SceneTags:       []SceneTag{SceneVision},
			},
		},
		DailySignals: DailySignals{
			NewModels:      2,
			PriceChanges:   1,
			OfficialFree:   1,
			AggregatorFree: 1,
			UnknownFree:    1,
		},
	}
}

func TestBuildFreeSourceBreakdown(t *testing.T) {
	report := sampleReportForV1()

	breakdown := buildFreeSourceBreakdown(report.FreeModels)

	if len(breakdown) != 3 {
		t.Fatalf("expected 3 free source groups, got %d", len(breakdown))
	}

	if breakdown[0].Label != "官方免费" || breakdown[0].Count != 1 {
		t.Fatalf("unexpected official free breakdown: %+v", breakdown[0])
	}
	if breakdown[1].Label != "聚合免费" || breakdown[1].Count != 1 {
		t.Fatalf("unexpected aggregator free breakdown: %+v", breakdown[1])
	}
	if breakdown[2].Label != "待确认" || breakdown[2].Count != 1 {
		t.Fatalf("unexpected unknown free breakdown: %+v", breakdown[2])
	}
}

func TestResolveReportDateDefaultsToToday(t *testing.T) {
	got, err := resolveReportDate(time.Date(2026, 5, 14, 9, 0, 0, 0, time.FixedZone("CST", 8*3600)), nil, "")
	if err != nil {
		t.Fatalf("resolveReportDate returned error: %v", err)
	}
	if got != "2026-05-14" {
		t.Fatalf("date = %q, want %q", got, "2026-05-14")
	}
}

func TestResolveReportDateUsesEnvDate(t *testing.T) {
	got, err := resolveReportDate(time.Now(), nil, "2026-05-09")
	if err != nil {
		t.Fatalf("resolveReportDate returned error: %v", err)
	}
	if got != "2026-05-09" {
		t.Fatalf("date = %q, want %q", got, "2026-05-09")
	}
}

func TestResolveReportDateCLIOverridesEnv(t *testing.T) {
	got, err := resolveReportDate(time.Now(), []string{"-date", "2024-06-05"}, "2026-05-09")
	if err != nil {
		t.Fatalf("resolveReportDate returned error: %v", err)
	}
	if got != "2024-06-05" {
		t.Fatalf("date = %q, want %q", got, "2024-06-05")
	}
}

func TestResolveReportDateSupportsEqualsSyntax(t *testing.T) {
	got, err := resolveReportDate(time.Now(), []string{"--date=2024-10-25"}, "")
	if err != nil {
		t.Fatalf("resolveReportDate returned error: %v", err)
	}
	if got != "2024-10-25" {
		t.Fatalf("date = %q, want %q", got, "2024-10-25")
	}
}

func TestResolveReportDateRejectsInvalidDate(t *testing.T) {
	if _, err := resolveReportDate(time.Now(), []string{"-date", "2026/05/09"}, ""); err == nil {
		t.Fatalf("expected invalid date error")
	}
}

func TestResolveReportRunContextDefaultsToManualCLI(t *testing.T) {
	ctx := resolveReportRunContext("2026-05-14", time.Date(2026, 5, 14, 8, 0, 0, 0, time.FixedZone("CST", 8*3600)), "", "", "", "")
	if ctx.RunKind != "manual" {
		t.Fatalf("run kind = %q, want manual", ctx.RunKind)
	}
	if ctx.TriggerSource != "cli" {
		t.Fatalf("trigger source = %q, want cli", ctx.TriggerSource)
	}
	if ctx.IsOfficialDaily {
		t.Fatalf("manual run should not be official daily: %+v", ctx)
	}
}

func TestResolveReportRunContextHonorsScheduledEnv(t *testing.T) {
	ctx := resolveReportRunContext("2026-05-14", time.Date(2026, 5, 14, 8, 0, 0, 0, time.FixedZone("CST", 8*3600)), "scheduled", "cron", "true", "")
	if ctx.RunKind != "scheduled" || ctx.TriggerSource != "cron" || !ctx.IsOfficialDaily {
		t.Fatalf("unexpected scheduled context: %+v", ctx)
	}
}

func TestResolveReportRunContextMarksHistoricalRebuildAsNonOfficial(t *testing.T) {
	ctx := resolveReportRunContext("2025-08-07", time.Date(2026, 5, 14, 8, 0, 0, 0, time.FixedZone("CST", 8*3600)), "historical_rebuild", "rebuild_script", "false", "")
	if ctx.RunKind != "historical_rebuild" {
		t.Fatalf("run kind = %q, want historical_rebuild", ctx.RunKind)
	}
	if ctx.TriggerSource != "rebuild_script" {
		t.Fatalf("trigger source = %q, want rebuild_script", ctx.TriggerSource)
	}
	if ctx.IsOfficialDaily {
		t.Fatalf("historical rebuild should not be official daily: %+v", ctx)
	}
}

func TestComposeTrackedSummaryPrependsRuntimeAudit(t *testing.T) {
	summary := composeTrackedSummary(
		"models=42 free=3 intl=5 domestic=10",
		ReportRunContext{
			RunKind:         "scheduled",
			TriggerSource:   "cron",
			IsOfficialDaily: true,
			RuntimeAudit:    "runtime_audit stage_set=openrouter,multi_source,official_imports,daily_report selected_source_keys=openrouter,moonshot,deepseek,openai,zhipu,baidu,bytedance failed_source_keys=none",
		},
	)

	if !strings.Contains(summary, "runtime_audit stage_set=openrouter,multi_source,official_imports,daily_report") {
		t.Fatalf("expected runtime audit in tracked summary, got %q", summary)
	}
	if !strings.Contains(summary, "failed_source_keys=none") {
		t.Fatalf("expected failed source keys in tracked summary, got %q", summary)
	}
	if !strings.Contains(summary, "models=42 free=3 intl=5 domestic=10") {
		t.Fatalf("expected report summary to be preserved, got %q", summary)
	}
}

func TestDecorateReportV1BuildsHotDaySummary(t *testing.T) {
	report := sampleReportForV1()
	report.ModelEvents = []ModelEvent{
		{
			EventType:       "official_release",
			ModelName:       "GLM-5",
			ProviderName:    "Zhipu",
			OperatorName:    "Zhipu",
			TrustLabel:      "官方来源 / 一级证据",
			Baseline:        "官方首次发布",
			Summary:         "官方发布新模型，值得优先复查中文通用与推理场景默认选择。",
			SourceKindLabel: "一级官方发布",
			PrimarySource:   "https://open.bigmodel.cn/dev/howuse/model",
			UpdatedAt:       "2026-05-13 08:30",
			EvidenceDetail:  "models.release_date = 今日，且 source_url 指向官方文档",
			Priority:        120,
		},
		{
			EventType:       "official_release",
			ModelName:       "Doubao Seed 1.8",
			ProviderName:    "ByteDance",
			OperatorName:    "ByteDance Volcano",
			TrustLabel:      "官方来源 / 二级佐证",
			Baseline:        "官方首次发布",
			Summary:         "次级权威报道已形成稳定发布日期信号，适合进入观察池但不应与一级公告混同。",
			SourceKindLabel: "二级权威佐证发布",
			PrimarySource:   "https://developer.volcengine.com/articles/7601918680544641034",
			UpdatedAt:       "2025-12-18 00:00",
			EvidenceDetail:  "models.release_date = 今日，发布日期采用次级权威报道佐证，模型来源页保留官方文档",
			Priority:        110,
		},
		{
			EventType:       "new_model",
			ModelName:       "DeepSeek-V4-Flash",
			ProviderName:    "DeepSeek",
			OperatorName:    "OpenRouter",
			TrustLabel:      "聚合来源",
			Baseline:        "首次出现",
			Summary:         "新模型进入情报池，值得重新评估低成本编码默认选择。",
			SourceKindLabel: "模型快照",
			PrimarySource:   "OpenRouter / region_pricing",
			UpdatedAt:       "2026-05-13 09:30",
			EvidenceDetail:  "models.created_at = 今日，且已存在最新价格快照",
			Priority:        95,
		},
		{
			EventType:       "price_cut",
			ModelName:       "qwen-vl-max",
			ProviderName:    "Alibaba",
			OperatorName:    "DashScope",
			TrustLabel:      "官方来源",
			Baseline:        "较昨日 -18%",
			Summary:         "价格下降已足以影响视觉模型默认选择。",
			SourceKindLabel: "价格快照",
			PrimarySource:   "pricing_history",
			UpdatedAt:       "2026-05-13 10:00",
			EvidenceDetail:  "pricing_history 记录到输入价格较昨日下降 18%",
			PriceChangePct:  -18,
			Priority:        90,
		},
	}

	decorateReportV1(report)

	if report.PageMode != "hot" {
		t.Fatalf("expected hot page mode, got %q", report.PageMode)
	}
	if !strings.Contains(report.HeroSummary, "GLM-5 已出现官方发布信号") {
		t.Fatalf("hero summary missing official release signal: %s", report.HeroSummary)
	}
	if len(report.ActionItems) != 3 {
		t.Fatalf("expected 3 action items, got %d", len(report.ActionItems))
	}
	if len(report.HeadlineItems) == 0 {
		t.Fatalf("expected headline items to be built")
	}
	if report.ActionItems[0].Evidence == "" {
		t.Fatalf("expected action item evidence to be populated")
	}
	if !strings.Contains(report.HeadlineItems[0].Title, "GLM-5") {
		t.Fatalf("expected first headline to prioritize official release, got %+v", report.HeadlineItems[0])
	}
}

func TestDecorateReportV1BuildsCalmDaySummary(t *testing.T) {
	report := sampleReportForV1()
	report.DailySignals = DailySignals{}

	decorateReportV1(report)

	if report.PageMode != "calm" {
		t.Fatalf("expected calm page mode, got %q", report.PageMode)
	}
	if !strings.Contains(report.HeroSummary, "稳定") {
		t.Fatalf("expected calm day summary to emphasize stability, got %s", report.HeroSummary)
	}
}

func TestGenerateMarkdownV3IncludesTencentSubscriptionSection(t *testing.T) {
	path := filepath.Join(t.TempDir(), "daily_report.md")
	report := sampleReportForV1()
	report.QualitySummary = DataQualitySummary{
		Total: 502,
		Fresh: 490,
		CNY:   126,
		USD:   376,
	}
	report.TencentSubscriptionPlans = []SubscriptionPlanInfo{
		{
			PlanName:      "通用 Token Plan Lite",
			PlanFamily:    "token_plan",
			Tier:          "Lite",
			Currency:      "CNY",
			ListPrice:     39,
			QuotaValue:    35000000,
			QuotaUnit:     "tokens/month",
			ContextWindow: 0,
			ModelCount:    10,
			ModelPreview:  "tc-code-latest, glm-5, glm-5.1",
		},
		{
			PlanName:      "Hy Token Plan Max",
			PlanFamily:    "token_plan",
			Tier:          "Max",
			Currency:      "CNY",
			ListPrice:     468,
			QuotaValue:    650000000,
			QuotaUnit:     "tokens/month",
			ContextWindow: 262144,
			ModelCount:    1,
			ModelPreview:  "hy3-preview",
		},
	}
	report.ModelEvents = []ModelEvent{
		{
			EventType:       "official_release",
			ModelName:       "GLM-5",
			ProviderName:    "Zhipu",
			OperatorName:    "Zhipu",
			TrustLabel:      "官方来源 / 一级证据",
			Baseline:        "官方首次发布",
			Summary:         "官方发布新模型，值得优先复查中文通用与推理场景默认选择。",
			SourceKindLabel: "一级官方发布",
			PrimarySource:   "https://open.bigmodel.cn/dev/howuse/model",
			UpdatedAt:       "2026-05-13 08:30",
			EvidenceDetail:  "models.release_date = 今日，且 source_url 指向官方文档",
			Priority:        120,
		},
		{
			EventType:       "official_release",
			ModelName:       "Doubao Seed 1.8",
			ProviderName:    "ByteDance",
			OperatorName:    "ByteDance Volcano",
			TrustLabel:      "官方来源 / 二级佐证",
			Baseline:        "官方首次发布",
			Summary:         "次级权威报道已形成稳定发布日期信号，适合进入观察池但不应与一级公告混同。",
			SourceKindLabel: "二级权威佐证发布",
			PrimarySource:   "https://developer.volcengine.com/articles/7601918680544641034",
			UpdatedAt:       "2025-12-18 00:00",
			EvidenceDetail:  "models.release_date = 今日，发布日期采用次级权威报道佐证，模型来源页保留官方文档",
			Priority:        110,
		},
		{
			EventType:       "new_model",
			ModelName:       "DeepSeek-V4-Flash",
			ProviderName:    "DeepSeek",
			OperatorName:    "OpenRouter",
			Audience:        "适合想尽快验证新模型价值的选型读者",
			TrustLabel:      "聚合来源",
			Baseline:        "首次出现",
			Summary:         "新模型进入情报池，值得重新评估低成本编码默认选择。",
			SourceKindLabel: "模型快照",
			PrimarySource:   "OpenRouter / region_pricing",
			UpdatedAt:       "2026-05-13 09:30",
			EvidenceDetail:  "models.created_at = 今日，且已存在最新价格快照",
			Priority:        95,
		},
		{
			EventType:       "promo_campaign",
			ModelName:       "DeepSeek-V3.2-Exp",
			ProviderName:    "DeepSeek",
			OperatorName:    "DeepSeek",
			Audience:        "适合计划趁活动窗口压低推理成本的团队",
			TrustLabel:      "官方来源 / 一级证据",
			Baseline:        "活动窗口开启",
			Summary:         "官方活动窗口出现后，值得重新评估低成本推理和批量调用方案。",
			SourceKindLabel: "官方活动页",
			PrimarySource:   "https://api-docs.deepseek.com/news/news250929",
			UpdatedAt:       "2025-09-29 00:00",
			EvidenceDetail:  "官方活动页记录 V3.2-Exp 在活动窗口内价格下调 50%+",
			Priority:        115,
		},
	}
	decorateReportV1(report)

	if err := generateMarkdownV3(report, path); err != nil {
		t.Fatalf("generateMarkdownV3 returned error: %v", err)
	}

	body, err := os.ReadFile(path)
	if err != nil {
		t.Fatalf("read markdown output: %v", err)
	}

	content := string(body)
	for _, want := range []string{
		"## 今日结论",
		"## 今日行动建议",
		"## 今日变化",
		"## 场景推荐",
		"## 完整数据附录",
		"- 影响对象:",
		"营销活动",
		"主来源: OpenRouter / region_pricing",
		"更新时间: 2026-05-13 09:30",
		"判定依据: models.created_at = 今日，且已存在最新价格快照",
		"## 💳 腾讯云套餐订阅价",
		"通用 Token Plan Lite",
		"Hy Token Plan Max",
		"¥39.00/月",
		"3500万 Tokens/月",
		"256K",
	} {
		if !strings.Contains(content, want) {
			t.Fatalf("markdown missing %q\n%s", want, content)
		}
	}
}

func TestGenerateHTMLV3IncludesTencentSubscriptionSection(t *testing.T) {
	path := filepath.Join(t.TempDir(), "daily_report.html")
	report := sampleReportForV1()
	report.ModelEvents = []ModelEvent{
		{
			EventType:       "official_release",
			ModelName:       "GLM-5",
			ProviderName:    "Zhipu",
			OperatorName:    "Zhipu",
			TrustLabel:      "官方来源 / 一级证据",
			Baseline:        "官方首次发布",
			Summary:         "官方发布新模型，值得优先复查中文通用与推理场景默认选择。",
			SourceKindLabel: "一级官方发布",
			PrimarySource:   "https://open.bigmodel.cn/dev/howuse/model",
			UpdatedAt:       "2026-05-13 08:30",
			EvidenceDetail:  "models.release_date = 今日，且 source_url 指向官方文档",
			Priority:        120,
		},
		{
			EventType:       "official_release",
			ModelName:       "Doubao Seed 1.8",
			ProviderName:    "ByteDance",
			OperatorName:    "ByteDance Volcano",
			TrustLabel:      "官方来源 / 二级佐证",
			Baseline:        "官方首次发布",
			Summary:         "次级权威报道已形成稳定发布日期信号，适合进入观察池但不应与一级公告混同。",
			SourceKindLabel: "二级权威佐证发布",
			PrimarySource:   "https://developer.volcengine.com/articles/7601918680544641034",
			UpdatedAt:       "2025-12-18 00:00",
			EvidenceDetail:  "models.release_date = 今日，发布日期采用次级权威报道佐证，模型来源页保留官方文档",
			Priority:        110,
		},
		{
			EventType:       "new_model",
			ModelName:       "DeepSeek-V4-Flash",
			ProviderName:    "DeepSeek",
			OperatorName:    "OpenRouter",
			Audience:        "适合想尽快验证新模型价值的选型读者",
			TrustLabel:      "聚合来源",
			Baseline:        "首次出现",
			Summary:         "新模型进入情报池，值得重新评估低成本编码默认选择。",
			SourceKindLabel: "模型快照",
			PrimarySource:   "OpenRouter / region_pricing",
			UpdatedAt:       "2026-05-13 09:30",
			EvidenceDetail:  "models.created_at = 今日，且已存在最新价格快照",
			Priority:        95,
		},
		{
			EventType:       "promo_campaign",
			ModelName:       "DeepSeek-V3.2-Exp",
			ProviderName:    "DeepSeek",
			OperatorName:    "DeepSeek",
			Audience:        "适合计划趁活动窗口压低推理成本的团队",
			TrustLabel:      "官方来源 / 一级证据",
			Baseline:        "活动窗口开启",
			Summary:         "官方活动窗口出现后，值得重新评估低成本推理和批量调用方案。",
			SourceKindLabel: "官方活动页",
			PrimarySource:   "https://api-docs.deepseek.com/news/news250929",
			UpdatedAt:       "2025-09-29 00:00",
			EvidenceDetail:  "官方活动页记录 V3.2-Exp 在活动窗口内价格下调 50%+",
			Priority:        115,
		},
	}
	report.TencentSubscriptionPlans = []SubscriptionPlanInfo{
		{
			PlanName:     "通用 Token Plan Lite",
			PlanFamily:   "token_plan",
			Tier:         "Lite",
			Currency:     "CNY",
			ListPrice:    39,
			QuotaValue:   35000000,
			QuotaUnit:    "tokens/month",
			ModelCount:   10,
			ModelPreview: "tc-code-latest, glm-5, glm-5.1",
		},
	}
	decorateReportV1(report)

	if err := generateHTMLV3(report, path); err != nil {
		t.Fatalf("generateHTMLV3 returned error: %v", err)
	}

	body, err := os.ReadFile(path)
	if err != nil {
		t.Fatalf("read html output: %v", err)
	}

	content := string(body)
	for _, want := range []string{
		"今日一句话结论",
		"三条行动建议",
		"今日头条",
		"DeepSeek-V4-Flash",
		"一级官方发布",
		"二级权威佐证",
		"营销活动",
		"影响对象",
		"首次出现",
		"主来源",
		"更新时间",
		"判定依据",
		"模型快照",
		"场景推荐",
		"完整数据附录",
		"官方免费",
		"聚合免费",
		"待确认",
		"💳 腾讯云套餐订阅价",
	} {
		if !strings.Contains(content, want) {
			t.Fatalf("html missing %q\n%s", want, content)
		}
	}
}

func TestBuildHeadlineItemsUsesModelEvents(t *testing.T) {
	report := sampleReportForV1()
	report.ModelEvents = []ModelEvent{
		{
			EventType:       "official_release",
			ModelName:       "GLM-5",
			ProviderName:    "Zhipu",
			OperatorName:    "Zhipu",
			TrustLabel:      "官方来源",
			Baseline:        "官方首次发布",
			Summary:         "官方发布新模型，值得优先复查中文通用与推理场景默认选择。",
			SourceKindLabel: "一级官方发布",
			PrimarySource:   "https://open.bigmodel.cn/dev/howuse/model",
			UpdatedAt:       "2026-05-13 08:30",
			EvidenceDetail:  "models.release_date = 今日，且 source_url 指向官方文档",
			Priority:        120,
		},
		{
			EventType:       "price_cut",
			ModelName:       "glm-5",
			ProviderName:    "Zhipu",
			OperatorName:    "Zhipu",
			TrustLabel:      "官方来源",
			Baseline:        "较昨日 -25%",
			Summary:         "价格下降已足以影响中文通用场景默认选型。",
			SourceKindLabel: "价格快照",
			PrimarySource:   "pricing_history",
			UpdatedAt:       "2026-05-13 10:00",
			EvidenceDetail:  "pricing_history 记录到输入价格较昨日下降 25%",
			PriceChangePct:  -25,
			Priority:        100,
		},
		{
			EventType:       "new_model",
			ModelName:       "DeepSeek-V4-Flash",
			ProviderName:    "DeepSeek",
			OperatorName:    "OpenRouter",
			TrustLabel:      "聚合来源",
			Baseline:        "首次出现",
			Summary:         "新模型进入情报池，值得重新评估低成本编码默认选择。",
			SourceKindLabel: "模型快照",
			PrimarySource:   "OpenRouter / region_pricing",
			UpdatedAt:       "2026-05-13 09:30",
			EvidenceDetail:  "models.created_at = 今日，且已存在最新价格快照",
			Priority:        90,
		},
	}

	items := buildHeadlineItems(report)

	if len(items) < 2 {
		t.Fatalf("expected at least 2 headline items, got %d", len(items))
	}
	if !strings.Contains(items[0].Title, "GLM-5") || items[0].Label != "一级官方发布" {
		t.Fatalf("expected official release event to rank first, got %+v", items[0])
	}
	if items[1].Baseline != "较昨日 -25%" {
		t.Fatalf("expected price_cut baseline to be preserved, got %+v", items[1])
	}
	if items[0].SourceKindLabel != "一级官方发布" || items[0].PrimarySource != "https://open.bigmodel.cn/dev/howuse/model" {
		t.Fatalf("expected official release evidence fields to be preserved, got %+v", items[0])
	}
}

func TestBuildHeadlineItemsDeduplicatesSameModel(t *testing.T) {
	report := sampleReportForV1()
	report.ModelEvents = []ModelEvent{
		{
			EventType:       "price_cut",
			ModelName:       "OpenAI: GPT-4o",
			ProviderName:    "OpenAI",
			TrustLabel:      "官方来源",
			Baseline:        "较昨日 -20%",
			Summary:         "价格下降影响默认成本。",
			SourceKindLabel: "价格快照",
			PrimarySource:   "pricing_history",
			UpdatedAt:       "2026-05-13 10:00",
			EvidenceDetail:  "pricing_history 记录到输入价格较昨日下降 20%",
			PriceChangePct:  -20,
			Priority:        95,
		},
		{
			EventType:       "price_increase",
			ModelName:       "OpenAI: GPT-4o",
			ProviderName:    "OpenAI",
			TrustLabel:      "官方来源",
			Baseline:        "较昨日 +5%",
			Summary:         "同日另有上调记录。",
			SourceKindLabel: "价格快照",
			PrimarySource:   "pricing_history",
			UpdatedAt:       "2026-05-13 11:00",
			EvidenceDetail:  "pricing_history 记录到输入价格较昨日上涨 5%",
			PriceChangePct:  5,
			Priority:        80,
		},
		{
			EventType:       "new_model",
			ModelName:       "Claude Opus 4.7",
			ProviderName:    "Anthropic",
			TrustLabel:      "聚合来源",
			Baseline:        "首次出现",
			Summary:         "新模型上线。",
			SourceKindLabel: "模型快照",
			PrimarySource:   "OpenRouter / region_pricing",
			UpdatedAt:       "2026-05-13 09:00",
			EvidenceDetail:  "models.created_at = 今日，且已存在最新价格快照",
			Priority:        70,
		},
	}

	items := buildHeadlineItems(report)

	if len(items) != 2 {
		t.Fatalf("expected 2 deduplicated headline items, got %d", len(items))
	}
	if strings.Contains(items[1].Title, "GPT-4o") {
		t.Fatalf("expected duplicate model event to be removed, got %+v", items)
	}
}

func TestHeadlineItemFromModelEventIncludesEvidenceFields(t *testing.T) {
	item := headlineItemFromModelEvent(ModelEvent{
		EventType:       "new_model",
		ModelName:       "DeepSeek-V4-Flash",
		TrustLabel:      "聚合来源",
		Baseline:        "首次出现",
		Summary:         "新模型进入情报池。",
		Audience:        "适合想尽快验证新模型价值的读者",
		SourceKindLabel: "模型快照",
		PrimarySource:   "OpenRouter / region_pricing",
		UpdatedAt:       "2026-05-13 09:30",
		EvidenceDetail:  "models.created_at = 今日，且已存在最新价格快照",
	})

	if item.SourceKindLabel != "模型快照" {
		t.Fatalf("expected source kind label to be propagated, got %+v", item)
	}
	if item.PrimarySource != "OpenRouter / region_pricing" {
		t.Fatalf("expected primary source to be propagated, got %+v", item)
	}
	if item.UpdatedAt != "2026-05-13 09:30" {
		t.Fatalf("expected updated at to be propagated, got %+v", item)
	}
	if item.EvidenceDetail == "" {
		t.Fatalf("expected evidence detail to be populated, got %+v", item)
	}
	if item.Audience != "适合想尽快验证新模型价值的读者" {
		t.Fatalf("expected audience to be propagated, got %+v", item)
	}
}

func TestHeadlineItemFromOfficialReleaseEvent(t *testing.T) {
	item := headlineItemFromModelEvent(ModelEvent{
		EventType:       "official_release",
		ModelName:       "Claude Sonnet 4.5",
		TrustLabel:      "官方来源",
		Baseline:        "官方首次发布",
		Summary:         "官方发布新模型。",
		SourceKindLabel: "一级官方发布",
		PrimarySource:   "https://docs.anthropic.com/en/release-notes/api",
		UpdatedAt:       "2026-05-13 07:00",
		EvidenceDetail:  "models.release_date = 今日，且 source_url 指向官方发布页",
	})

	if item.Label != "一级官方发布" {
		t.Fatalf("expected label to be 一级官方发布, got %+v", item)
	}
	if !strings.Contains(item.Title, "官方发布") {
		t.Fatalf("expected title to mention 官方发布, got %+v", item)
	}
	if item.SourceKindLabel != "一级官方发布" {
		t.Fatalf("expected source kind label to be 一级官方发布, got %+v", item)
	}
	if item.PrimarySource != "https://docs.anthropic.com/en/release-notes/api" {
		t.Fatalf("expected primary source to be preserved, got %+v", item)
	}
	if item.Tone != "official-primary" {
		t.Fatalf("expected tone to be official-primary, got %+v", item)
	}
}

func TestHeadlineItemFromSecondaryReleaseEvent(t *testing.T) {
	item := headlineItemFromModelEvent(ModelEvent{
		EventType:       "official_release",
		ModelName:       "Doubao Seed 1.8",
		TrustLabel:      "官方来源 / 二级佐证",
		Baseline:        "官方首次发布",
		Summary:         "模型进入正式发布日期观察池。",
		SourceKindLabel: "二级权威佐证发布",
		PrimarySource:   "https://developer.volcengine.com/articles/7601918680544641034",
		UpdatedAt:       "2025-12-18 00:00",
		EvidenceDetail:  "models.release_date = 今日，发布日期采用次级权威报道佐证，模型来源页保留官方文档",
	})

	if item.Label != "二级权威佐证" {
		t.Fatalf("expected label to be 二级权威佐证, got %+v", item)
	}
	if !strings.Contains(item.Title, "权威佐证发布时间线") {
		t.Fatalf("expected title to mention 权威佐证发布时间线, got %+v", item)
	}
	if item.Tone != "secondary-evidence" {
		t.Fatalf("expected tone to be secondary-evidence, got %+v", item)
	}
}

func TestHeadlineItemFromPromoCampaignEvent(t *testing.T) {
	item := headlineItemFromModelEvent(ModelEvent{
		EventType:       "promo_campaign",
		ModelName:       "DeepSeek-V3.2-Exp",
		TrustLabel:      "官方来源 / 一级证据",
		Baseline:        "活动窗口开启",
		Summary:         "官方活动窗口出现后，值得重新评估低成本推理方案。",
		Audience:        "适合计划趁活动窗口压低推理成本的团队",
		SourceKindLabel: "官方活动页",
		PrimarySource:   "https://api-docs.deepseek.com/news/news250929",
		UpdatedAt:       "2025-09-29 00:00",
		EvidenceDetail:  "官方活动页记录 V3.2-Exp 在活动窗口内价格下调 50%+",
	})

	if item.Label != "营销活动" {
		t.Fatalf("expected label to be 营销活动, got %+v", item)
	}
	if !strings.Contains(item.Title, "活动窗口") {
		t.Fatalf("expected title to mention 活动窗口, got %+v", item)
	}
	if item.Tone != "promo" {
		t.Fatalf("expected tone to be promo, got %+v", item)
	}
	if item.Audience != "适合计划趁活动窗口压低推理成本的团队" {
		t.Fatalf("expected audience to be preserved, got %+v", item)
	}
}