Files
nxdns/admin/src/features/clients/prefixEditor.ts
T

75 lines
2.4 KiB
TypeScript

import type { ClientPrefix, ClientPrefixInput } from "@/lib/types";
export interface PrefixRow {
prefix: string;
group_id: number;
/** Raw input text; empty means "use the server default (100)". */
priority: string;
}
export interface PrefixEditorState {
baseline: PrefixRow[];
rows: PrefixRow[];
}
export type PrefixEditorAction =
| { type: "reset"; prefixes: ClientPrefix[] }
| { type: "add"; groupId: number }
| { type: "remove"; index: number }
| { type: "edit"; index: number; patch: Partial<PrefixRow> };
function fromServer(prefixes: ClientPrefix[]): PrefixRow[] {
return prefixes.map((p) => ({ prefix: p.prefix, group_id: p.group_id, priority: String(p.priority) }));
}
export function initPrefixEditor(prefixes: ClientPrefix[]): PrefixEditorState {
const rows = fromServer(prefixes);
return { baseline: rows, rows };
}
export function prefixEditorReducer(state: PrefixEditorState, action: PrefixEditorAction): PrefixEditorState {
switch (action.type) {
case "reset":
return initPrefixEditor(action.prefixes);
case "add":
return { ...state, rows: [...state.rows, { prefix: "", group_id: action.groupId, priority: "" }] };
case "remove":
return { ...state, rows: state.rows.filter((_, i) => i !== action.index) };
case "edit":
return {
...state,
rows: state.rows.map((row, i) => (i === action.index ? { ...row, ...action.patch } : row)),
};
}
}
function sameRow(a: PrefixRow, b: PrefixRow): boolean {
return a.prefix === b.prefix && a.group_id === b.group_id && a.priority === b.priority;
}
export function isDirty(state: PrefixEditorState): boolean {
if (state.rows.length !== state.baseline.length) return true;
return state.rows.some((row, i) => {
const base = state.baseline[i];
return base === undefined || !sameRow(row, base);
});
}
export function firstProblem(rows: PrefixRow[]): string | null {
for (const [i, row] of rows.entries()) {
if (row.prefix.trim() === "") return `Row ${i + 1}: prefix is required.`;
const priority = row.priority.trim();
if (priority !== "" && !/^\d+$/.test(priority)) return `Row ${i + 1}: priority must be a whole number.`;
}
return null;
}
export function toInputs(rows: PrefixRow[]): ClientPrefixInput[] {
return rows.map((row) => {
const input: ClientPrefixInput = { prefix: row.prefix.trim(), group_id: row.group_id };
const priority = row.priority.trim();
if (priority !== "") input.priority = Number(priority);
return input;
});
}