package store_test

import (
	"context"
	"errors"
	"testing"

	"github.com/netcell-it/deklarix/internal/store"
)

func TestParticipantCRUD(t *testing.T) {
	s := openTestStore(t)
	ctx := context.Background()
	accID := testAccountID(t, s)
	sub, err := s.CreateSubmission(ctx, accID, "instagram", "reel", "...")
	if err != nil {
		t.Fatalf("CreateSubmission: %v", err)
	}

	p, err := s.CreateParticipant(ctx, sub.ID, "creator", "Max Mustermann", false, false)
	if err != nil {
		t.Fatalf("CreateParticipant: %v", err)
	}
	if p.ApprovedAt != nil {
		t.Fatalf("ApprovedAt should be nil when freigegeben=false, got %v", p.ApprovedAt)
	}

	list, err := s.ListParticipants(ctx, sub.ID)
	if err != nil {
		t.Fatalf("ListParticipants: %v", err)
	}
	if len(list) != 1 || list[0].ID != p.ID {
		t.Fatalf("ListParticipants = %+v, want exactly the created participant", list)
	}

	got, err := s.GetParticipant(ctx, p.ID)
	if err != nil {
		t.Fatalf("GetParticipant: %v", err)
	}
	if got.SubmissionID != sub.ID {
		t.Fatalf("GetParticipant.SubmissionID = %q, want %q", got.SubmissionID, sub.ID)
	}

	updated, err := s.UpdateParticipant(ctx, p.ID, true, true)
	if err != nil {
		t.Fatalf("UpdateParticipant: %v", err)
	}
	if !updated.Vorgegeben || !updated.Freigegeben {
		t.Fatalf("UpdateParticipant did not apply new flags: %+v", updated)
	}
	if updated.ApprovedAt == nil {
		t.Fatal("expected ApprovedAt to be set once freigegeben became true")
	}
	firstApproval := *updated.ApprovedAt

	// Ein erneutes Update (weiterhin freigegeben) darf approved_at nicht
	// verschieben — es haelt fest, wann ZUERST freigegeben wurde.
	updated2, err := s.UpdateParticipant(ctx, p.ID, true, true)
	if err != nil {
		t.Fatalf("UpdateParticipant (2): %v", err)
	}
	if !updated2.ApprovedAt.Equal(firstApproval) {
		t.Fatalf("ApprovedAt changed on a no-op update: %v -> %v", firstApproval, *updated2.ApprovedAt)
	}

	if err := s.DeleteParticipant(ctx, p.ID); err != nil {
		t.Fatalf("DeleteParticipant: %v", err)
	}
	if _, err := s.GetParticipant(ctx, p.ID); !errors.Is(err, store.ErrNotFound) {
		t.Fatalf("err after delete = %v, want store.ErrNotFound", err)
	}
}

func TestUpdateParticipantNotFound(t *testing.T) {
	s := openTestStore(t)
	_, err := s.UpdateParticipant(context.Background(), "00000000-0000-0000-0000-000000000000", true, true)
	if !errors.Is(err, store.ErrNotFound) {
		t.Fatalf("err = %v, want store.ErrNotFound", err)
	}
}

func TestDeleteParticipantNotFound(t *testing.T) {
	s := openTestStore(t)
	err := s.DeleteParticipant(context.Background(), "00000000-0000-0000-0000-000000000000")
	if !errors.Is(err, store.ErrNotFound) {
		t.Fatalf("err = %v, want store.ErrNotFound", err)
	}
}

func TestListSubmissionsForAccount(t *testing.T) {
	s := openTestStore(t)
	ctx := context.Background()
	accID := testAccountID(t, s)

	subNoFindings, err := s.CreateSubmission(ctx, accID, "instagram", "reel", "organic")
	if err != nil {
		t.Fatalf("CreateSubmission: %v", err)
	}
	subWithFinding, err := s.CreateSubmission(ctx, accID, "tiktok", "video", "unmarked ad")
	if err != nil {
		t.Fatalf("CreateSubmission: %v", err)
	}
	// sources bewusst nil statt []string{} — CreateFinding muss das
	// selbst abfangen (siehe Kommentar dort), nicht der Aufrufer.
	if _, err := s.CreateFinding(ctx, subWithFinding.ID, nil, "WK-001", 1, "hoch", "t", "f", nil); err != nil {
		t.Fatalf("CreateFinding: %v", err)
	}

	// Andere Mandanten duerfen nicht auftauchen.
	otherAccID := testAccountID(t, s)
	if _, err := s.CreateSubmission(ctx, otherAccID, "instagram", "reel", "anderer Mandant"); err != nil {
		t.Fatalf("CreateSubmission (other account): %v", err)
	}

	list, err := s.ListSubmissionsForAccount(ctx, accID)
	if err != nil {
		t.Fatalf("ListSubmissionsForAccount: %v", err)
	}
	if len(list) != 2 {
		t.Fatalf("expected 2 submissions for this account, got %d: %+v", len(list), list)
	}

	byID := map[string]store.SubmissionSummary{}
	for _, s := range list {
		byID[s.ID] = s
	}
	if byID[subNoFindings.ID].FindingCount != 0 || byID[subNoFindings.ID].HighestSeverity != "" {
		t.Errorf("subNoFindings summary = %+v, want 0 findings and no severity", byID[subNoFindings.ID])
	}
	if byID[subWithFinding.ID].FindingCount != 1 || byID[subWithFinding.ID].HighestSeverity != "hoch" {
		t.Errorf("subWithFinding summary = %+v, want 1 finding, severity hoch", byID[subWithFinding.ID])
	}
}