package httpapi

import (
	"context"
	"encoding/json"
	"knowledge-governance/internal/dobotaiops"
	"knowledge-governance/internal/qaopsquality"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
	"time"
)

type qualityFake struct {
	actor string
	calls int
	fail  bool
}

func (s *qualityFake) Observe(_ context.Context, records []dobotaiops.Record) (map[string]qaopsquality.View, error) {
	s.calls++
	if s.fail {
		return nil, qaopsquality.ErrUnavailable
	}
	out := map[string]qaopsquality.View{}
	for _, r := range records {
		e, _ := qaopsquality.EvidenceFor(r)
		out[r.ID] = qaopsquality.Project(e.Hash, 1, 0, qaopsquality.Check{InputEpoch: 1, InputHash: e.Hash, Result: dobotaiops.CheckAnswerCoverage(r.Answer)}, nil)
	}
	return out, nil
}
func (s *qualityFake) ObserveKeys(_ context.Context, keys []dobotaiops.QualityKey) (map[string]qaopsquality.View, error) {
	s.calls++
	out := map[string]qaopsquality.View{}
	for _, key := range keys {
		out[key.ID] = qaopsquality.Project(key.InputHash, 1, 0, qaopsquality.Check{Result: dobotaiops.CheckMarkerCoverage(key.Marker)}, nil)
	}
	return out, nil
}
func (s *qualityFake) Save(_ context.Context, r dobotaiops.Record, q qaopsquality.SaveRequest, actor string) (qaopsquality.Receipt, error) {
	s.actor = actor
	v := qaopsquality.Project(q.InputHash, 1, 1, qaopsquality.Check{Result: dobotaiops.CheckAnswerCoverage(r.Answer)}, &qaopsquality.Review{InputEpoch: 1, InputHash: q.InputHash, Fields: q.Fields, Reason: q.Reason, Reviewer: actor})
	return qaopsquality.Receipt{View: v, SavedRevision: 1}, nil
}
func (s *qualityFake) Columns(_ context.Context, keys []dobotaiops.QualityKey) ([]string, error) {
	return []string{"is_correct", "product_category"}, nil
}
func (s *qualityFake) History(context.Context, string, int64, int64) (qaopsquality.History, error) {
	return qaopsquality.History{Reviews: []qaopsquality.Review{}, Checks: []qaopsquality.Check{}}, nil
}
func (s *qualityFake) Snapshot(context.Context, string, int64) (qaopsquality.Snapshot, error) {
	return qaopsquality.Snapshot{}, qaopsquality.ErrNotFound
}

type qualitySource struct {
	attributedReader
	record     dobotaiops.Record
	tenant     string
	scopeCalls int
}

func (s *qualitySource) GetRecord(_ context.Context, tenant, id string) (dobotaiops.Record, error) {
	s.tenant = tenant
	return s.record, nil
}
func (s *qualitySource) ListRecords(_ context.Context, q dobotaiops.RecordQuery) (dobotaiops.RecordPage, error) {
	return dobotaiops.RecordPage{Items: []dobotaiops.Record{s.record}, Columns: []string{"question"}, Total: 2, AsOf: time.Now()}, nil
}
func (s *qualitySource) ReadQualityScope(_ context.Context, q dobotaiops.RecordQuery) (dobotaiops.QualityScope, error) {
	s.scopeCalls++
	s.tenant = q.Window.TenantKey
	second := s.record
	second.ID = "second-turn"
	keys := []dobotaiops.QualityKey{}
	for _, r := range []dobotaiops.Record{s.record, second} {
		e, _ := qaopsquality.EvidenceFor(r)
		keys = append(keys, dobotaiops.QualityKey{ID: r.ID, InputHash: e.Hash, Marker: e.Result.Verdict == "uncovered", Source: r.SourceCoverage})
	}
	return dobotaiops.QualityScope{Keys: keys, AsOf: time.Now()}, nil
}
func qualityTestHandler(t *testing.T) (http.Handler, *qualityFake, *qualitySource) {
	t.Helper()
	store := &qualityFake{}
	source := &qualitySource{record: dobotaiops.Record{ID: "fixture-turn", Status: "succeeded", Question: "示例", Answer: "暂无已发布"}}
	auth := newFakeAuthStore()
	auth.sessions["quality-admin"] = "usr-boss"
	auth.sessions["quality-viewer"] = "usr-eye"
	h, e := NewHandler(Config{Store: &fakeJobStore{}, Auth: &AuthConfig{Store: auth}, QAOps: source, QAOpsTenantKey: "fixed", QAQuality: store, Now: func() time.Time { return time.Date(2026, 10, 17, 0, 0, 0, 0, time.UTC) }})
	if e != nil {
		t.Fatal(e)
	}
	return h, store, source
}
func qualityRequest(h http.Handler, method, path, token, body string) *httptest.ResponseRecorder {
	r := httptest.NewRequest(method, path, strings.NewReader(body))
	r.Header.Set("Content-Type", "application/json")
	r.Header.Set("X-Governance-Action", "qa-quality")
	if token != "" {
		r.AddCookie(&http.Cookie{Name: sessionCookieName, Value: token})
	}
	w := httptest.NewRecorder()
	h.ServeHTTP(w, r)
	return w
}
func TestQAQualityDetailListAndWholeScopeCounts(t *testing.T) {
	h, store, source := qualityTestHandler(t)
	w := qualityRequest(h, "GET", "/api/v1/qa-ops/records/fixture-turn", "quality-admin", "")
	if w.Code != 200 || !strings.Contains(w.Body.String(), `"quality"`) {
		t.Fatal("persisted quality absent in detail", w.Code)
	}
	w = qualityRequest(h, "GET", "/api/v1/qa-ops/records?start=2026-10-14T00:00:00Z&end=2026-10-15T00:00:00Z", "quality-admin", "")
	if w.Code != 200 || !strings.Contains(w.Body.String(), `"is_correct"`) {
		t.Fatal("whole-filter quality columns absent")
	}
	w = qualityRequest(h, "POST", "/api/v1/qa-ops/quality/query", "quality-admin", `{"start":"2026-10-14T00:00:00Z","end":"2026-10-15T00:00:00Z","keyword":""}`)
	if w.Code != 200 || !strings.Contains(w.Body.String(), `"unreviewed":2`) || source.scopeCalls != 1 || source.tenant != "fixed" || store.calls < 2 {
		t.Fatal("quality summary estimated from page instead of scope", w.Code, w.Body.String())
	}
	var counts struct {
		Data struct {
			Summary qaopsquality.Summary `json:"summary"`
		} `json:"data"`
	}
	if json.Unmarshal(w.Body.Bytes(), &counts) != nil || counts.Data.Summary.Rates.Coverage.Denominator != 2 || counts.Data.Summary.Rates.Coverage.Numerator != 0 || counts.Data.Summary.Rates.Correctness.Percent != nil {
		t.Fatal("confirmed quality metrics were not computed for the whole scope")
	}
	store.fail = true
	w = qualityRequest(h, "GET", "/api/v1/qa-ops/records/fixture-turn", "quality-admin", "")
	if w.Code != 503 || !strings.Contains(w.Body.String(), "quality_unavailable") {
		t.Fatal("quality storage failure presented as empty success")
	}
}
func TestQAQualityReviewUsesSessionActorAndStrictReadOnlySourceBoundary(t *testing.T) {
	h, store, source := qualityTestHandler(t)
	e, _ := qaopsquality.EvidenceFor(source.record)
	q := qaopsquality.SaveRequest{InputHash: e.Hash, InputEpoch: 1, Nonce: strings.Repeat("n", 32), Fields: qaopsquality.Fields{Coverage: "uncovered", Correctness: "pending"}, Reason: "人工核对"}
	raw, _ := json.Marshal(q)
	path := "/api/v1/qa-ops/records/fixture-turn/reviews"
	w := qualityRequest(h, "POST", path, "quality-admin", string(raw))
	if w.Code != 200 || store.actor != "boss" || source.tenant != "fixed" {
		t.Fatal("manual review failed or actor came from request", w.Code, store.actor)
	}
	for _, tc := range []struct {
		token, body string
		status      int
	}{{"", string(raw), 401}, {"quality-viewer", string(raw), 403}, {"quality-admin", strings.TrimSuffix(string(raw), "}") + `,"reviewer":"forged"}`, 400}, {"quality-admin", `null`, 400}, {"quality-admin", string(raw) + `{}`, 400}, {"quality-admin", `{"nonce":"a","nonce":"b"}`, 400}} {
		w = qualityRequest(h, "POST", path, tc.token, tc.body)
		if w.Code != tc.status {
			t.Fatal("review boundary failed", w.Code, tc.status)
		}
	}
	r := httptest.NewRequest("POST", path, strings.NewReader(string(raw)))
	r.AddCookie(&http.Cookie{Name: sessionCookieName, Value: "quality-admin"})
	r.Header.Set("X-Governance-Action", "qa-quality")
	r.Header.Set("Sec-Fetch-Site", "cross-site")
	w = httptest.NewRecorder()
	h.ServeHTTP(w, r)
	if w.Code != 403 {
		t.Fatal("cross-site review accepted")
	}
	w = qualityRequest(h, "GET", path+"/invalid", "quality-admin", "")
	if w.Code != 404 {
		t.Fatal("unknown endpoint silently accepted")
	}
}

func TestQAQualityReviewRejectsMissingRevisionAndNestedNull(t *testing.T) {
	h, _, source := qualityTestHandler(t)
	e, _ := qaopsquality.EvidenceFor(source.record)
	q := qaopsquality.SaveRequest{InputHash: e.Hash, InputEpoch: 1, Nonce: strings.Repeat("n", 32), Fields: qaopsquality.Fields{Coverage: "pending", Correctness: "pending"}, Reason: "示例复核"}
	raw, _ := json.Marshal(q)
	for _, body := range []string{strings.Replace(string(raw), `"base_revision":0,`, "", 1), strings.Replace(string(raw), `"base_revision":0`, `"base_revision":null`, 1), strings.Replace(string(raw), `"product_category":""`, `"product_category":null`, 1)} {
		w := qualityRequest(h, "POST", "/api/v1/qa-ops/records/fixture-turn/reviews", "quality-admin", body)
		if w.Code != 400 {
			t.Fatal("missing/null version or field silently became a default", w.Code)
		}
	}
}