import type {
  MarriageActiveCase,
  MarriageActiveSubscription,
  MarriageField,
  MarriageMatchSummary,
  MarriageProfileResponse,
  MarriageRecommendedPlan,
} from "@/hooks/marriage/types";

export const REQUIRED_PROFILE_SECTION_COUNT = 9;

/**
 * Normalizes a single MarriageField from various potential backend or Flutter bridge formats.
 */
export function normalizeMarriageField(raw: any): MarriageField | null {
  if (!raw || typeof raw !== "object") return null;
  const key = raw.key ?? raw.field_key ?? raw.fieldKey ?? raw.name ?? "";
  const label = raw.label ?? raw.title ?? "";
  const value = raw.value ?? raw.val ?? "";
  const type = raw.type ?? raw.field_type ?? raw.fieldType ?? "text";
  return {
    key: String(key),
    label: String(label),
    type: String(type),
    value: value ?? "",
    option_id: raw.option_id ?? raw.optionId ?? null,
    private: Boolean(raw.private ?? raw.is_private ?? false),
  };
}

/**
 * Normalizes a match_summary object supporting snake_case, camelCase, and candidate structures.
 */
export function normalizeMatchSummary(raw: any): MarriageMatchSummary | null {
  if (!raw || typeof raw !== "object") return null;

  const rawPublicInfo =
    raw.public_info ??
    raw.publicInfo ??
    raw.fields ??
    raw.public_fields ??
    raw.publicFields ??
    [];

  const publicInfo: MarriageField[] = Array.isArray(rawPublicInfo)
    ? rawPublicInfo
        .map(normalizeMarriageField)
        .filter((f): f is MarriageField => f !== null)
    : [];

  const rawId = raw.id ?? raw.candidate_id ?? raw.candidateId ?? 0;
  const rawGender = raw.gender ?? "female";
  const rawPercent =
    raw.overall_completion_percent ??
    raw.overallCompletionPercent ??
    raw.completion_percent ??
    raw.completionPercent ??
    0;

  return {
    id: Number(rawId) || 0,
    gender: rawGender,
    overall_completion_percent: Number(rawPercent) || 0,
    public_info: publicInfo,
  };
}

/**
 * Normalizes a full MarriageProfileResponse from server, Flutter bridge, or localStorage.
 * Guarantees consistent snake_case format and type safety.
 */
export function normalizeMarriageProfile(
  raw: any,
): MarriageProfileResponse | null {
  if (!raw || typeof raw !== "object") return null;

  // Handle nested data wrappers e.g. { marriage: ... }, { profile: ... }, or { data: { marriage: ... } }
  const data =
    raw.marriage ??
    raw.profile ??
    raw.data?.marriage ??
    raw.data?.profile ??
    raw.data ??
    raw;

  if (!data || typeof data !== "object") return null;

  const rawMatch =
    data.match_summary ??
    data.matchSummary ??
    data.match ??
    data.candidate ??
    null;
  const match_summary = normalizeMatchSummary(rawMatch);

  const rawActiveCase = data.active_case ?? data.activeCase ?? null;
  const active_case: MarriageActiveCase | null =
    rawActiveCase && typeof rawActiveCase === "object"
      ? {
          case_id: Number(
            rawActiveCase.case_id ??
              rawActiveCase.caseId ??
              rawActiveCase.id ??
              0,
          ),
          status:
            rawActiveCase.status ??
            rawActiveCase.case_status ??
            rawActiveCase.caseStatus ??
            "introduced",
          introduced_at:
            rawActiveCase.introduced_at ??
            rawActiveCase.introducedAt ??
            new Date().toISOString(),
          contact_shared_at:
            rawActiveCase.contact_shared_at ??
            rawActiveCase.contactSharedAt ??
            null,
          payment_done_at:
            rawActiveCase.payment_done_at ??
            rawActiveCase.paymentDoneAt ??
            null,
          minutes_since_contact_shared:
            rawActiveCase.minutes_since_contact_shared ??
            rawActiveCase.minutesSinceContactShared ??
            null,
          can_report_no_contact: Boolean(
            rawActiveCase.can_report_no_contact ??
              rawActiveCase.canReportNoContact ??
              false,
          ),
          can_report_outcome: Boolean(
            rawActiveCase.can_report_outcome ??
              rawActiveCase.canReportOutcome ??
              false,
          ),
          has_outcome_reported: Boolean(
            rawActiveCase.has_outcome_reported ??
              rawActiveCase.hasOutcomeReported ??
              false,
          ),
          outcome_reason:
            rawActiveCase.outcome_reason ??
            rawActiveCase.outcomeReason ??
            null,
          outcome_note:
            rawActiveCase.outcome_note ??
            rawActiveCase.outcomeNote ??
            null,
          outcome_reported_by:
            rawActiveCase.outcome_reported_by ??
            rawActiveCase.outcomeReportedBy ??
            null,
          my_action:
            rawActiveCase.my_action ?? rawActiveCase.myAction ?? "pending",
          other_action:
            rawActiveCase.other_action ??
            rawActiveCase.otherAction ??
            undefined,
        }
      : null;

  const rawActiveSub =
    data.active_subscription ?? data.activeSubscription ?? null;
  const active_subscription: MarriageActiveSubscription | null =
    rawActiveSub && typeof rawActiveSub === "object"
      ? {
          id: Number(rawActiveSub.id ?? 1),
          plan: {
            id: Number(rawActiveSub.plan?.id ?? 1),
            title: String(rawActiveSub.plan?.title ?? "Subscription"),
            price: String(rawActiveSub.plan?.price ?? "0"),
            plan_type: String(rawActiveSub.plan?.plan_type ?? "standard"),
            duration_days:
              rawActiveSub.plan?.duration_days !== undefined
                ? Number(rawActiveSub.plan.duration_days)
                : null,
            usage_limit:
              rawActiveSub.plan?.usage_limit !== undefined
                ? Number(rawActiveSub.plan.usage_limit)
                : null,
          },
          start_date: String(rawActiveSub.start_date ?? new Date().toISOString()),
          end_date: rawActiveSub.end_date ? String(rawActiveSub.end_date) : null,
          total_usages: Number(rawActiveSub.total_usages ?? 0),
          is_active: Boolean(
            rawActiveSub.is_active ??
              rawActiveSub.isActive ??
              rawActiveSub.valid ??
              true,
          ),
          is_valid: Boolean(
            rawActiveSub.is_valid ??
              rawActiveSub.isValid ??
              rawActiveSub.valid ??
              true,
          ),
          remaining_days:
            rawActiveSub.remaining_days !== undefined
              ? Number(rawActiveSub.remaining_days)
              : undefined,
        }
      : null;

  const rawRecommendedPlan =
    data.recommended_plan ?? data.recommendedPlan ?? null;
  const recommended_plan: MarriageRecommendedPlan | null =
    rawRecommendedPlan && typeof rawRecommendedPlan === "object"
      ? {
          id: Number(rawRecommendedPlan.id ?? 1),
          title: String(rawRecommendedPlan.title ?? ""),
          price: String(rawRecommendedPlan.price ?? "50"),
        }
      : null;

  return {
    id: Number(data.id ?? data.profile_id ?? data.profileId ?? 0),
    status: data.status ?? "pending_onboarding",
    gender: data.gender ?? null,
    age: data.age !== undefined && data.age !== null ? Number(data.age) : null,
    is_registering_for_self:
      data.is_registering_for_self !== undefined
        ? Boolean(data.is_registering_for_self)
        : data.isRegisteringForSelf !== undefined
          ? Boolean(data.isRegisteringForSelf)
          : null,
    can_edit_profile:
      data.can_edit_profile !== undefined
        ? Boolean(data.can_edit_profile)
        : data.canEditProfile !== undefined
          ? Boolean(data.canEditProfile)
          : true,
    can_message_expert:
      data.can_message_expert !== undefined
        ? Boolean(data.can_message_expert)
        : data.canMessageExpert !== undefined
          ? Boolean(data.canMessageExpert)
          : true,
    active_subscription,
    is_ready_for_match:
      data.is_ready_for_match !== undefined
        ? Boolean(data.is_ready_for_match)
        : data.isReadyForMatch !== undefined
          ? Boolean(data.isReadyForMatch)
          : true,
    active_case,
    needs_subscription: Boolean(
      data.needs_subscription ?? data.needsSubscription ?? false,
    ),
    recommended_plan,
    match_summary,
    intro_video_url: data.intro_video_url ?? data.introVideoUrl ?? null,
    intro_video_thumbnail_url:
      data.intro_video_thumbnail_url ?? data.introVideoThumbnailUrl ?? null,
    unseen_rejection: data.unseen_rejection ?? data.unseenRejection ?? null,
  };
}