package support

import (
	"context"
	"errors"
	"fmt"
	"os"
	"strings"
	"testing"
	"time"

	"github.com/google/uuid"
	"github.com/jackc/pgx/v5/pgxpool"
)

// TestTicketCRUDAuthOwnership gates list/get so users only see their own tickets.
// Skips when DATABASE_URL unset or support_tickets migration not applied.
func TestTicketCRUDAuthOwnership(t *testing.T) {
	dsn := strings.TrimSpace(os.Getenv("DATABASE_URL"))
	if dsn == "" {
		t.Skip("DATABASE_URL not set")
	}
	ctx := context.Background()
	pg, err := pgxpool.New(ctx, dsn)
	if err != nil {
		t.Fatalf("postgres: %v", err)
	}
	t.Cleanup(pg.Close)

	var hasTable bool
	if err := pg.QueryRow(ctx, `
		SELECT EXISTS (
			SELECT 1 FROM information_schema.tables
			WHERE table_schema = 'public' AND table_name = 'support_tickets'
		)`).Scan(&hasTable); err != nil {
		t.Fatalf("schema probe: %v", err)
	}
	if !hasTable {
		t.Skip("support_tickets table missing — run goose up for 025_support_center")
	}

	companyID := uuid.New()
	ownerID := uuid.New()
	otherID := uuid.New()
	prefix := companyID.String()[:8]

	_, err = pg.Exec(ctx, `INSERT INTO companies (id, name, language) VALUES ($1, $2, 'en')`,
		companyID, "Support Auth Co "+prefix)
	if err != nil {
		t.Fatalf("seed company: %v", err)
	}
	for _, u := range []struct {
		id    uuid.UUID
		email string
		name  string
	}{
		{ownerID, fmt.Sprintf("owner-%s@example.test", prefix), "Owner"},
		{otherID, fmt.Sprintf("other-%s@example.test", prefix), "Other"},
	} {
		_, err = pg.Exec(ctx, `
			INSERT INTO users (id, email, name, password_hash, must_set_password, is_platform_admin, is_active)
			VALUES ($1, $2, $3, 'x', false, false, true)`, u.id, u.email, u.name)
		if err != nil {
			t.Fatalf("seed user %s: %v", u.email, err)
		}
		_, err = pg.Exec(ctx, `
			INSERT INTO memberships (company_id, user_id, role, status)
			VALUES ($1, $2, 'member', 'active')`, companyID, u.id)
		if err != nil {
			t.Fatalf("seed membership: %v", err)
		}
	}
	t.Cleanup(func() {
		cctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
		defer cancel()
		_, _ = pg.Exec(cctx, `DELETE FROM support_notifications WHERE ticket_id IN (SELECT id FROM support_tickets WHERE company_id = $1)`, companyID)
		_, _ = pg.Exec(cctx, `DELETE FROM support_messages WHERE company_id = $1`, companyID)
		_, _ = pg.Exec(cctx, `DELETE FROM support_tickets WHERE company_id = $1`, companyID)
		_, _ = pg.Exec(cctx, `DELETE FROM memberships WHERE company_id = $1`, companyID)
		_, _ = pg.Exec(cctx, `DELETE FROM users WHERE id IN ($1, $2)`, ownerID, otherID)
		_, _ = pg.Exec(cctx, `DELETE FROM companies WHERE id = $1`, companyID)
	})

	svc := NewService(pg)
	ticket, err := svc.Create(ctx, companyID, ownerID, CreateInput{
		Subject:  "Auth ownership probe",
		Category: "bug",
		Priority: "normal",
		Body:     "Initial message from owner",
	})
	if err != nil {
		t.Fatalf("create: %v", err)
	}

	if _, err := svc.GetForUser(ctx, companyID, ownerID, ticket.ID); err != nil {
		t.Fatalf("owner get: %v", err)
	}
	if _, err := svc.GetForUser(ctx, companyID, otherID, ticket.ID); !errors.Is(err, ErrNotFound) {
		t.Fatalf("other get err=%v want ErrNotFound", err)
	}

	ownerList, _, err := svc.ListForUser(ctx, companyID, ownerID, "", 20, 0)
	if err != nil {
		t.Fatalf("owner list: %v", err)
	}
	if len(ownerList) != 1 || ownerList[0].ID != ticket.ID {
		t.Fatalf("owner list=%v want ticket %s", ownerList, ticket.ID)
	}
	otherList, total, err := svc.ListForUser(ctx, companyID, otherID, "", 20, 0)
	if err != nil {
		t.Fatalf("other list: %v", err)
	}
	if total != 0 || len(otherList) != 0 {
		t.Fatalf("other must not see owner tickets: total=%d list=%v", total, otherList)
	}
}