rename to resource rules and add api endpoints

server/routers/resource/listResourceRules.ts

@@ -0,0 +1,133 @@
+import { db } from "@server/db";
+import { resourceRules, resources } from "@server/db/schema";
+import HttpCode from "@server/types/HttpCode";
+import response from "@server/lib/response";
+import { eq, sql } from "drizzle-orm";
+import { NextFunction, Request, Response } from "express";
+import createHttpError from "http-errors";
+import { z } from "zod";
+import { fromError } from "zod-validation-error";
+import logger from "@server/logger";
+
+const listResourceRulesParamsSchema = z
+    .object({
+        resourceId: z
+            .string()
+            .transform(Number)
+            .pipe(z.number().int().positive())
+    })
+    .strict();
+
+const listResourceRulesSchema = z.object({
+    limit: z
+        .string()
+        .optional()
+        .default("1000")
+        .transform(Number)
+        .pipe(z.number().int().positive()),
+    offset: z
+        .string()
+        .optional()
+        .default("0")
+        .transform(Number)
+        .pipe(z.number().int().nonnegative())
+});
+
+function queryResourceRules(resourceId: number) {
+    let baseQuery = db
+        .select({
+            ruleId: resourceRules.ruleId,
+            resourceId: resourceRules.resourceId,
+            action: resourceRules.action,
+            match: resourceRules.match,
+            value: resourceRules.value,
+            resourceName: resources.name,
+        })
+        .from(resourceRules)
+        .leftJoin(resources, eq(resourceRules.resourceId, resources.resourceId))
+        .where(eq(resourceRules.resourceId, resourceId));
+    
+    return baseQuery;
+}
+
+export type ListResourceRulesResponse = {
+    rules: Awaited<ReturnType<typeof queryResourceRules>>;
+    pagination: { total: number; limit: number; offset: number };
+};
+
+export async function listResourceRules(
+    req: Request,
+    res: Response,
+    next: NextFunction
+): Promise<any> {
+    try {
+        const parsedQuery = listResourceRulesSchema.safeParse(req.query);
+        if (!parsedQuery.success) {
+            return next(
+                createHttpError(
+                    HttpCode.BAD_REQUEST,
+                    fromError(parsedQuery.error)
+                )
+            );
+        }
+        const { limit, offset } = parsedQuery.data;
+
+        const parsedParams = listResourceRulesParamsSchema.safeParse(req.params);
+        if (!parsedParams.success) {
+            return next(
+                createHttpError(
+                    HttpCode.BAD_REQUEST,
+                    fromError(parsedParams.error)
+                )
+            );
+        }
+        const { resourceId } = parsedParams.data;
+
+        // Verify the resource exists
+        const [resource] = await db
+            .select()
+            .from(resources)
+            .where(eq(resources.resourceId, resourceId))
+            .limit(1);
+
+        if (!resource) {
+            return next(
+                createHttpError(
+                    HttpCode.NOT_FOUND,
+                    `Resource with ID ${resourceId} not found`
+                )
+            );
+        }
+
+        const baseQuery = queryResourceRules(resourceId);
+        
+        let countQuery = db
+            .select({ count: sql<number>`cast(count(*) as integer)` })
+            .from(resourceRules)
+            .where(eq(resourceRules.resourceId, resourceId));
+
+        const rulesList = await baseQuery.limit(limit).offset(offset);
+        const totalCountResult = await countQuery;
+        const totalCount = totalCountResult[0].count;
+
+        return response<ListResourceRulesResponse>(res, {
+            data: {
+                rules: rulesList,
+                pagination: {
+                    total: totalCount,
+                    limit,
+                    offset
+                }
+            },
+            success: true,
+            error: false,
+            message: "Resource rules retrieved successfully",
+            status: HttpCode.OK
+        });
+    } catch (error) {
+        logger.error(error);
+        return next(
+            createHttpError(HttpCode.INTERNAL_SERVER_ERROR, "An error occurred")
+        );
+    }
+}