export type WorkType = "support" | "consulting";
export type BillingStatus = "billed" | "non_billable" | null;
export type PeriodType = "month" | "day";
export type TicketDetailPeriodType = PeriodType | "all";
export type UserRole = "admin" | "user";

export type AuthUser = {
  id: string;
  username: string;
  display_name: string;
  role: UserRole;
  active: boolean;
};

export type AdminUser = AuthUser & {
  created_at: string;
  updated_at: string;
};

export type Organization = {
  id: string;
  zammad_id: string;
  name: string;
  synced_at: string;
};

export type RecurringBillingSlot = {
  id?: string;
  weekday: number | null;
  start_time: string | null;
  duration_minutes: number;
};

export type RecurringBilling = {
  id: string;
  user_id: string;
  owner_username: string;
  owner_display_name: string;
  ticket_number: string;
  configured_ticket_number: string | null;
  organization_id: string;
  organization_name: string;
  activity: string;
  work_type: WorkType;
  recurrence_type: "weekly" | "every_n_weeks";
  interval_value: number;
  valid_from: string;
  valid_until: string | null;
  start_time: string;
  active: boolean;
  created_at: string;
  updated_at: string;
  slots: RecurringBillingSlot[];
};

export type TicketMeta = {
  id: string;
  ticket_number: string;
  organization_id: string | null;
  organization_name: string | null;
  customer_name: string | null;
  work_type: WorkType | null;
};

export type TicketSearchResult = {
  ticket_id: string;
  ticket_number: string;
  organization_id: string | null;
  organization_name: string | null;
  customer_name: string | null;
  work_type: WorkType | null;
  latest_started_at: string;
  latest_period: string;
  session_count: number;
  total_minutes: number;
};

export type TicketSummary = {
  id: string;
  ticket_number: string;
  organization_id: string | null;
  organization_name: string | null;
  customer_name: string | null;
  work_type: WorkType | null;
  session_count: number;
  total_minutes: number;
  non_billable_minutes: number;
  open_minutes: number;
  open_count: number;
  ticket_open_count: number;
  billed_count: number;
  non_billable_count: number;
  recurring_session_count: number;
  manual_session_count: number;
  requires_closure: boolean;
  closed: boolean;
  closed_at: string | null;
};

export type OpenSession = {
  id: string;
  ticket_id: string;
  ticket_number: string;
  organization_id: string | null;
  organization_name: string | null;
  customer_name: string;
  activity: string;
  work_type: WorkType;
  started_at: string;
  rounded_minutes: number;
};

export type ActivityBucket = {
  bucket_key: string;
  session_count: number;
  total_minutes: number;
};

export type PeriodOverview = {
  periodType: PeriodType;
  period: string;
  closed: boolean;
  closedAt: string | null;
  canClose: boolean;
  totals: {
    tickets: number;
    sessions: number;
    minutes: number;
    crmBilledMinutes: number;
    nonBillableMinutes: number;
    openMinutes: number;
    openSessions: number;
  };
  tickets: TicketSummary[];
  openSessions: OpenSession[];
  activitySeries: ActivityBucket[];
};

export type TicketDayBilling = {
  day: string;
  billed_minutes: number;
};

export type TicketAvailableMonth = {
  month: string;
  session_count: number;
};

export type SessionEntry = {
  id: string;
  organization_id: string | null;
  organization_name: string | null;
  customer_name: string;
  activity: string;
  work_type: WorkType;
  started_at: string;
  ended_at: string;
  duration_seconds: number;
  rounded_minutes: number;
  billing_status: BillingStatus;
  billing_updated_at: string | null;
  created_at: string;
  recurring_billing_id: string | null;
  recurring_billing_slot_id: string | null;
  recurring_occurrence_date: string | null;
};

export type TicketPeriod = {
  periodType: TicketDetailPeriodType;
  period: string;
  closed: boolean;
  closedAt: string | null;
  filters?: {
    month: string;
    status: "all" | "open" | "billed" | "non_billable";
    source: "all" | "manual" | "recurring";
  };
  availableMonths?: TicketAvailableMonth[];
  ticket: {
    id: string;
    ticket_number: string;
    organization_id: string | null;
    organization_name: string | null;
    customer_name: string | null;
    work_type: WorkType | null;
    closed_at: string | null;
    requires_closure: boolean;
    recurring_session_count: number;
    manual_session_count: number;
  };
  sessions: SessionEntry[];
  dayBillings: TicketDayBilling[];
  canClose: boolean;
  openCount: number;
  ticketOpenCount: number;
};

export type MonthOverview = PeriodOverview;
export type TicketMonth = TicketPeriod;

export type StatisticsDailyBucket = {
  day: string;
  sessions: number;
  total_minutes: number;
  billed_minutes: number;
  non_billable_minutes: number;
  open_minutes: number;
  billed_sessions: number;
  non_billable_sessions: number;
  open_sessions: number;
  crm_billed_minutes: number;
};

export type StatisticsGroup = {
  organization_id?: string | null;
  organization_name?: string;
  work_type?: WorkType;
  tickets: number;
  sessions: number;
  total_minutes: number;
  billed_minutes: number;
  non_billable_minutes: number;
  open_minutes: number;
  billed_sessions: number;
  non_billable_sessions: number;
  open_sessions: number;
  crm_billed_minutes: number;
  crm_delta_minutes: number;
};

export type StatisticsTicket = {
  ticket_id: string;
  ticket_number: string;
  organization_id: string | null;
  organization_name: string;
  active_days: number;
  sessions: number;
  total_minutes: number;
  billed_minutes: number;
  non_billable_minutes: number;
  open_minutes: number;
  billed_sessions: number;
  non_billable_sessions: number;
  open_sessions: number;
  crm_billed_minutes: number;
  crm_delta_minutes: number;
};

export type StatisticsOpenSession = {
  id: string;
  ticket_id: string;
  ticket_number: string;
  organization_name: string;
  activity: string;
  started_at: string;
  rounded_minutes: number;
};

export type StatisticsCrmDay = {
  ticket_id: string;
  ticket_number: string;
  organization_name: string;
  day: string;
  tracked_minutes: number;
  crm_billed_minutes: number;
  delta_minutes?: number;
  acknowledged?: boolean;
  acknowledged_at?: string | null;
};

export type StatisticsOverview = {
  periodType: "month";
  period: string;
  closed: boolean;
  closedAt: string | null;
  totals: {
    tickets: number;
    sessions: number;
    minutes: number;
    billedMinutes: number;
    nonBillableMinutes: number;
    openMinutes: number;
    billedSessions: number;
    nonBillableSessions: number;
    openSessions: number;
    recurringMinutes: number;
    manualMinutes: number;
    recurringSessions: number;
    manualSessions: number;
    averageSessionMinutes: number;
    activeDays: number;
    crmBilledMinutes: number;
    crmDeltaMinutes: number;
  };
  dailySeries: StatisticsDailyBucket[];
  organizations: StatisticsGroup[];
  workTypes: StatisticsGroup[];
  tickets: StatisticsTicket[];
  attention: {
    openSessions: StatisticsOpenSession[];
    missingCrmDays: StatisticsCrmDay[];
    acknowledgedMissingCrmDays: StatisticsCrmDay[];
    crmMismatches: StatisticsCrmDay[];
  };
};