General source code refactoring

src/services/spa/accounts.js

@@ -0,0 +1,75 @@
+function createSpaAccounts({
+  ACCOUNT_PLANS_PAYLOAD,
+  ACCOUNT_PLANS_URL,
+  ACCOUNT_SUMMARY_URL,
+  extractAccountPlans,
+  fetchJson,
+  findAccountPlanId,
+  normalizeMessageAuthorization
+}) {
+  async function requestAccountPlans(message) {
+    const partyNumber = typeof message.partyNumber === "string" ? message.partyNumber.trim() : "";
+    const accountSummaryAuthorization = normalizeMessageAuthorization(
+      message.authorizations && message.authorizations.accountSummary,
+      "account-ti-authorization"
+    );
+    const accountPlansAuthorization = normalizeMessageAuthorization(
+      message.authorizations && message.authorizations.accountPlans,
+      "g2m-authorization"
+    );
+    const debugRequests = [];
+
+    if (!partyNumber) {
+      throw new Error("Customer Party Number is required.");
+    }
+
+    if (!accountSummaryAuthorization.value) {
+      throw new Error("ACCP-TS authorization is unavailable. requestConsumerTokenService must complete first.");
+    }
+
+    if (!accountPlansAuthorization.value) {
+      throw new Error("OCICONS-TS authorization is unavailable. requestConsumerTokenService must complete first.");
+    }
+
+    try {
+      const accountSummary = await fetchJson(ACCOUNT_SUMMARY_URL, {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          Accept: "application/json",
+          [accountSummaryAuthorization.name]: accountSummaryAuthorization.value,
+          "Content-Type": "application/json"
+        },
+        body: JSON.stringify([{ key: "regId", value: partyNumber }])
+      }, "requestAccountSummary", debugRequests);
+      const accountPlanId = findAccountPlanId(accountSummary);
+
+      if (!accountPlanId) {
+        throw new Error("Account plan id was not found in requestAccountSummary.");
+      }
+
+      const accountPlansResponse = await fetchJson(`${ACCOUNT_PLANS_URL}/${encodeURIComponent(String(accountPlanId))}`, {
+        method: "POST",
+        credentials: "include",
+        headers: {
+          Accept: "application/json",
+          [accountPlansAuthorization.name]: accountPlansAuthorization.value,
+          "Content-Type": "application/json"
+        },
+        body: JSON.stringify(ACCOUNT_PLANS_PAYLOAD)
+      }, "requestAccountPlans", debugRequests);
+
+      return {
+        ok: true,
+        accountPlanId: String(accountPlanId),
+        plans: extractAccountPlans(accountPlansResponse),
+        debugRequests
+      };
+    } catch (error) {
+      error.debugRequests = debugRequests;
+      throw error;
+    }
+  }
+
+  return { requestAccountPlans };
+}

src/services/spa/consumption.js

@@ -0,0 +1,58 @@
+function createSpaConsumption({
+  CONSUMPTION_TREND_REQUESTS,
+  CONSUMPTION_TREND_URL,
+  fetchJson,
+  normalizeMessageAuthorization
+}) {
+  async function requestConsumptionTrend(message) {
+    const subPlanNum = typeof message.subPlanNum === "string" ? message.subPlanNum.trim() : "";
+    const period = typeof message.period === "string" ? message.period.toLowerCase() : "";
+    const requestName = CONSUMPTION_TREND_REQUESTS[period];
+    const authorization = normalizeMessageAuthorization(message.authorization, "g2m-authorization");
+    const debugRequests = [];
+
+    if (!subPlanNum) {
+      throw new Error("Sub plan number is required for the consumption trend.");
+    }
+
+    if (!requestName) {
+      throw new Error(`Unsupported consumption trend period: ${period || "(missing)"}.`);
+    }
+
+    if (!authorization.value) {
+      throw new Error("OCICONS-TS authorization is unavailable for the consumption trend.");
+    }
+
+    const url = `${CONSUMPTION_TREND_URL}/${encodeURIComponent(subPlanNum)}?quarter=All&timePeriod=${period}`;
+
+    try {
+      const response = await fetchJson(url, {
+        method: "GET",
+        credentials: "include",
+        cache: "no-store",
+        headers: {
+          Accept: "application/json",
+          "G2m-Authorization": authorization.value
+        }
+      }, requestName, debugRequests);
+      const items = Array.isArray(response)
+        ? response
+        : Array.isArray(response && response.items)
+          ? response.items
+          : [];
+
+      return {
+        ok: true,
+        subPlanNum,
+        period,
+        items,
+        debugRequests
+      };
+    } catch (error) {
+      error.debugRequests = debugRequests;
+      throw error;
+    }
+  }
+
+  return { requestConsumptionTrend };
+}

src/services/spa/response-shapes.js

@@ -0,0 +1,61 @@
+function createSpaResponseShapes() {
+  function findNestedObject(value, predicate, visited = new Set()) {
+    if (!value || typeof value !== "object" || visited.has(value)) {
+      return null;
+    }
+
+    visited.add(value);
+
+    if (!Array.isArray(value) && predicate(value)) {
+      return value;
+    }
+
+    for (const child of Object.values(value)) {
+      const match = findNestedObject(child, predicate, visited);
+
+      if (match) {
+        return match;
+      }
+    }
+
+    return null;
+  }
+
+  function findAccountPlanId(response) {
+    const account = findNestedObject(response, (value) => (
+      Object.prototype.hasOwnProperty.call(value, "id")
+      && value.id !== null
+      && value.id !== undefined
+      && value.id !== ""
+    ));
+    return account ? account.id : "";
+  }
+
+  function extractAccountPlans(response) {
+    const plans = [];
+    const visited = new Set();
+
+    const visit = (value) => {
+      if (!value || typeof value !== "object" || visited.has(value)) {
+        return;
+      }
+
+      visited.add(value);
+
+      if (!Array.isArray(value) && (
+        Object.prototype.hasOwnProperty.call(value, "planType")
+        || Object.prototype.hasOwnProperty.call(value, "subPlanNum")
+      )) {
+        plans.push(value);
+        return;
+      }
+
+      Object.values(value).forEach(visit);
+    };
+
+    visit(response);
+    return plans;
+  }
+
+  return { findNestedObject, findAccountPlanId, extractAccountPlans };
+}