package jnpf.dmsService;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import jnpf.exception.DataException;
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import java.util.*;
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/** Native organizeSelect values; deliberately rejects users, positions and unresolved dynamic parameters. */
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public final class DmsApprovedDepartmentScope {
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private static final ObjectMapper JSON = new ObjectMapper();
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public record Department(String id, String scope) {}
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private DmsApprovedDepartmentScope() {}
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public static List<Department> parse(String value) {
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if (value == null || value.isBlank()) return List.of();
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try {
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JsonNode array = JSON.readTree(value);
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// Native empty selections can be SQL NULL or serialized JSON null.
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if (array == null || array.isNull()) return List.of();
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if (!array.isArray()) throw new DataException("查阅授权部门必须为数组");
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Map<String, Department> departments = new TreeMap<>();
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for (JsonNode node : array) {
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if (!node.isTextual()) throw new DataException("查阅授权部门必须为ID字符串");
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String token = node.textValue().trim();
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String id = token, scope = "SELF";
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int separator = token.indexOf("--");
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if (separator >= 0) {
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id = token.substring(0, separator);
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scope = switch (token.substring(separator + 2)) {
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case "org" -> "SELF";
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case "subOrg" -> "CHILDREN";
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case "progenyOrg" -> "DESCENDANTS";
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default -> throw new DataException("查阅授权仅支持部门及部门下级范围");
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};
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}
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if (id.isBlank() || id.length() > 100 || id.startsWith("@") || !id.equals(id.trim())
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|| id.chars().anyMatch(Character::isWhitespace))
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throw new DataException("查阅授权部门ID无效");
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Department candidate = new Department(id, scope);
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Department old = departments.get(id);
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if (old == null || rank(candidate.scope()) > rank(old.scope())) departments.put(id, candidate);
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}
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return List.copyOf(departments.values());
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} catch (DataException ex) { throw ex; }
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catch (Exception ex) { throw new DataException("查阅授权部门格式无效"); }
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}
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public static String normalize(String value) {
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List<Department> departments = parse(value);
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try {
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return JSON.writeValueAsString(departments.stream().map(d -> d.id() + switch (d.scope()) {
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case "CHILDREN" -> "--subOrg";
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case "DESCENDANTS" -> "--progenyOrg";
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default -> "";
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}).toList());
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} catch (Exception ex) { throw new DataException("无法保存查阅授权部门快照"); }
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}
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private static int rank(String scope) {
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return switch (scope) { case "CHILDREN" -> 1; case "DESCENDANTS" -> 2; default -> 0; };
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}
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}
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