import type { ReactNode } from "react";
import type { ReimbursementDetail } from "../api/reimbursements";
import type { ReimbursementApprovalEvidenceProjection } from "./reimbursementApprovalProjection";
import { resolveReimbursementDisplayCode } from "./reimbursementDisplay";

export type ReimbursementWorkspaceHeaderModel = {
  displayCode: string;
  ownerName: string;
  reimbursementDate: string | null;
  totalAmount: string | null;
  description: string | null;
};

export type ReimbursementWorkspaceIssueAnchor = {
  id: string;
  label: string;
  severity: "blocking" | "review" | "info";
};

export type ReimbursementWorkspaceModel = {
  header: ReimbursementWorkspaceHeaderModel;
  evidence: ReimbursementApprovalEvidenceProjection;
  issueAnchors: ReimbursementWorkspaceIssueAnchor[];
};

export type ReimbursementWorkspaceSlots = {
  status: ReactNode;
  backAction?: ReactNode;
  headerDetails?: ReactNode;
  beforeEvidence?: ReactNode;
  afterEvidence?: ReactNode;
  timeline?: ReactNode;
  actionPanel?: ReactNode;
  mobileActions?: ReactNode;
  transientFeedback?: ReactNode;
};

export function buildReimbursementWorkspaceHeader(
  detail: Pick<ReimbursementDetail, "formNumber" | "owner" | "reimbursementDate" | "totalAmount" | "description" | "id">,
): ReimbursementWorkspaceHeaderModel {
  return {
    displayCode: resolveReimbursementDisplayCode(detail),
    ownerName: detail.owner?.name ?? "-",
    reimbursementDate: detail.reimbursementDate,
    totalAmount: detail.totalAmount,
    description: detail.description,
  };
}

export function buildReimbursementWorkspaceIssueAnchors(
  evidence: ReimbursementApprovalEvidenceProjection,
  options: { snapshotMissing?: boolean; snapshotInvalid?: boolean } = {},
): ReimbursementWorkspaceIssueAnchor[] {
  const anchors: ReimbursementWorkspaceIssueAnchor[] = [];
  if (options.snapshotInvalid) {
    anchors.push({ id: "reimbursement-workspace-snapshot", label: "提交记录无法读取", severity: "blocking" });
  } else if (options.snapshotMissing) {
    anchors.push({ id: "reimbursement-workspace-snapshot", label: "未留存预算快照", severity: "info" });
  }
  if (evidence.currentCheck.unlinkedInvoiceCount) {
    anchors.push({
      id: "reimbursement-workspace-unlinked",
      label: `${evidence.currentCheck.unlinkedInvoiceCount} 张票据尚未选择明细`,
      severity: "blocking",
    });
  }
  if (evidence.currentCheck.missingInvoiceItemCount) {
    anchors.push({
      id: "reimbursement-workspace-evidence",
      label: `${evidence.currentCheck.missingInvoiceItemCount} 条明细缺少票据`,
      severity: "review",
    });
  }
  if (evidence.currentCheck.amountUnavailableItemCount) {
    anchors.push({
      id: "reimbursement-workspace-evidence",
      label: `${evidence.currentCheck.amountUnavailableItemCount} 条明细的票面金额未能读取`,
      severity: "blocking",
    });
  }
  if (evidence.currentCheck.manualReviewItemCount) {
    anchors.push({
      id: "reimbursement-workspace-evidence",
      label: `${evidence.currentCheck.manualReviewItemCount} 条明细需查看原件核对金额`,
      severity: "review",
    });
  }
  if (evidence.currentCheck.amountExceededItemCount) {
    anchors.push({
      id: "reimbursement-workspace-evidence",
      label: `${evidence.currentCheck.amountExceededItemCount} 条明细申报额高于票面金额`,
      severity: "blocking",
    });
  }
  return anchors;
}