package httpapi

import (
	"bytes"
	"context"
	"io"
	"log/slog"
	"net/http"
	"net/http/httptest"
	"os"
	"strings"
	"testing"
	"time"

	"calllinesystem/server/internal/config"
	"calllinesystem/server/internal/database"
	"calllinesystem/server/internal/model"
	"calllinesystem/server/internal/security"

	"github.com/google/uuid"
)

func TestDisablingStaffRevokesSessionsAndBlocksLoginPostgresIntegration(t *testing.T) {
	dsn := strings.TrimSpace(os.Getenv("TEST_DATABASE_URL"))
	if dsn == "" {
		t.Skip("TEST_DATABASE_URL is not set")
	}

	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()
	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
	db, err := database.Open(ctx, dsn, logger)
	if err != nil {
		t.Fatal(err)
	}
	defer database.Close(db)
	sqlDB, err := database.SQLDB(db)
	if err != nil {
		t.Fatal(err)
	}
	if err := database.Migrate(ctx, sqlDB, logger); err != nil {
		t.Fatal(err)
	}

	server, err := New(db, config.Config{
		EncryptionKey:     bytes.Repeat([]byte{0x61}, 32),
		PhoneHMACKey:      bytes.Repeat([]byte{0x62}, 32),
		SessionCookieName: "queue_session",
		SessionTTL:        time.Hour,
	}, logger)
	if err != nil {
		t.Fatal(err)
	}
	now := time.Date(2026, 7, 30, 10, 0, 0, 0, time.UTC)
	server.now = func() time.Time { return now }

	password := "StaffPassword123!"
	passwordHash, err := security.HashPassword(password)
	if err != nil {
		t.Fatal(err)
	}
	admin := model.User{
		ID: uuid.NewString(), Username: "auth_admin_" + uuid.NewString()[:8],
		PasswordHash: passwordHash, Role: model.RoleAdmin, Active: true,
		CreatedAt: now, UpdatedAt: now,
	}
	staff := model.User{
		ID: uuid.NewString(), Username: "auth_staff_" + uuid.NewString()[:8],
		PasswordHash: passwordHash, Role: model.RoleStaff, Active: true,
		CreatedAt: now, UpdatedAt: now,
	}
	if err := db.Create(&admin).Error; err != nil {
		t.Fatal(err)
	}
	if err := db.Create(&staff).Error; err != nil {
		t.Fatal(err)
	}

	login := func() *httptest.ResponseRecorder {
		recorder := httptest.NewRecorder()
		request := httptest.NewRequest(http.MethodPost, "/api/staff/auth/login",
			strings.NewReader(`{"username":"`+staff.Username+`","password":"`+password+`"}`))
		server.Handler().ServeHTTP(recorder, request)
		return recorder
	}

	firstLogin := login()
	if firstLogin.Code != http.StatusOK {
		t.Fatalf("initial login status = %d, want 200; body = %s", firstLogin.Code, firstLogin.Body.String())
	}
	var staffCookie *http.Cookie
	for _, cookie := range firstLogin.Result().Cookies() {
		if cookie.Name == server.authCookieName(model.RoleStaff) {
			staffCookie = cookie
			break
		}
	}
	if staffCookie == nil {
		t.Fatal("initial login did not set the staff session cookie")
	}

	updateRequest := httptest.NewRequest(http.MethodPut, "/api/admin/users/"+staff.ID,
		strings.NewReader(`{"role":"STAFF","active":false,"project_ids":[]}`))
	updateRequest.SetPathValue("id", staff.ID)
	updateRequest = updateRequest.WithContext(context.WithValue(updateRequest.Context(), principalKey, principal{User: admin}))
	updateRecorder := httptest.NewRecorder()
	server.updateAdminUser(updateRecorder, updateRequest)
	if updateRecorder.Code != http.StatusOK {
		t.Fatalf("disable status = %d, want 200; body = %s", updateRecorder.Code, updateRecorder.Body.String())
	}

	var disabledStaff model.User
	if err := db.First(&disabledStaff, "id = ?", staff.ID).Error; err != nil {
		t.Fatal(err)
	}
	if disabledStaff.Active {
		t.Error("staff remains active after disabling")
	}

	var activeSessions int64
	if err := db.Model(&model.AuthSession{}).
		Where("user_id = ? AND revoked_at IS NULL", staff.ID).
		Count(&activeSessions).Error; err != nil {
		t.Fatal(err)
	}
	if activeSessions != 0 {
		t.Errorf("active sessions after disabling staff = %d, want 0", activeSessions)
	}

	meRecorder := httptest.NewRecorder()
	meRequest := httptest.NewRequest(http.MethodGet, "/api/staff/auth/me", nil)
	meRequest.AddCookie(staffCookie)
	server.Handler().ServeHTTP(meRecorder, meRequest)
	if meRecorder.Code != http.StatusUnauthorized {
		t.Errorf("existing session after disabling status = %d, want 401; body = %s", meRecorder.Code, meRecorder.Body.String())
	}

	secondLogin := login()
	if secondLogin.Code != http.StatusUnauthorized {
		t.Fatalf("login after disabling status = %d, want 401; body = %s", secondLogin.Code, secondLogin.Body.String())
	}
}