1 files changed, 170 insertions, 0 deletions
diff --git a/apps/web-shared/src/lib/api/internal-fetch.ts b/apps/web-shared/src/lib/api/internal-fetch.ts
new file mode 100644
index 0000000..8659ccb
--- /dev/null
+++ b/apps/web-shared/src/lib/api/internal-fetch.ts
@@ -0,0 +1,170 @@
+import {Temporal} from "@js-temporal/polyfill";
+import {clear_session_data} from "$shared/lib/session";
+import {resolve_references} from "$shared/lib/helpers";
+import {replace} from "svelte-spa-router";
+import type {IInternalFetchResponse} from "$shared/lib/models/IInternalFetchResponse";
+import type {IInternalFetchRequest} from "$shared/lib/models/IInternalFetchRequest";
+
+export async function http_post(url: string, body?: object|string, timeout = -1, skip_401_check = false, abort_signal: AbortSignal = undefined): Promise<IInternalFetchResponse> {
+    const init = {
+        method: "post",
+    } as RequestInit;
+
+    if (abort_signal) {
+        init.signal = abort_signal;
+    }
+
+    if (body) {
+        init.headers = {
+            "Content-Type": "application/json;charset=UTF-8",
+        };
+        init.body = JSON.stringify(body);
+    }
+
+    const response = await internal_fetch({url, init, timeout});
+    const result = {} as IInternalFetchResponse;
+
+    if (!skip_401_check && await is_401(response)) return result;
+
+    result.ok = response.ok;
+    result.status = response.status;
+    result.http_response = response;
+
+    if (response.status !== 204) {
+        try {
+            const ct = response.headers.get("Content-Type")?.toString() ?? "";
+            if (ct.startsWith("application/json")) {
+                const data = await response.json();
+                result.data = resolve_references(data);
+            } else if (ct.startsWith("text/plain")) {
+                const text = await response.text();
+                result.data = text as string;
+            }
+        } catch {
+            // Ignored
+        }
+    }
+
+    return result;
+}
+
+export async function http_get(url: string, timeout = -1, skip_401_check = false, abort_signal: AbortSignal = undefined): Promise<IInternalFetchResponse> {
+    const init = {
+        method: "get",
+    } as RequestInit;
+
+    if (abort_signal) {
+        init.signal = abort_signal;
+    }
+
+    const response = await internal_fetch({url, init, timeout});
+    const result = {} as IInternalFetchResponse;
+
+    if (!skip_401_check && await is_401(response)) return result;
+
+    result.ok = response.ok;
+    result.status = response.status;
+    result.http_response = response;
+
+    if (response.status !== 204) {
+        try {
+            const ct = response.headers.get("Content-Type")?.toString() ?? "";
+            if (ct.startsWith("application/json")) {
+                const data = await response.json();
+                result.data = resolve_references(data);
+            } else if (ct.startsWith("text/plain")) {
+                const text = await response.text();
+                result.data = text as string;
+            }
+        } catch {
+            // Ignored
+        }
+    }
+
+    return result;
+}
+
+export async function http_delete(url: string, body?: object|string, timeout = -1, skip_401_check = false, abort_signal: AbortSignal = undefined): Promise<IInternalFetchResponse> {
+    const init = {
+        method: "delete",
+    } as RequestInit;
+
+    if (abort_signal) {
+        init.signal = abort_signal;
+    }
+
+    if (body) {
+        init.headers = {
+            "Content-Type": "application/json;charset=UTF-8",
+        };
+        init.body = JSON.stringify(body);
+    }
+
+    const response = await internal_fetch({url, init, timeout});
+    const result = {} as IInternalFetchResponse;
+
+    if (!skip_401_check && await is_401(response)) return result;
+
+    result.ok = response.ok;
+    result.status = response.status;
+    result.http_response = response;
+
+    if (response.status !== 204) {
+        try {
+            const ct = response.headers.get("Content-Type")?.toString() ?? "";
+            if (ct.startsWith("application/json")) {
+                const data = await response.json();
+                result.data = resolve_references(data);
+            } else if (ct.startsWith("text/plain")) {
+                const text = await response.text();
+                result.data = text as string;
+            }
+        } catch (error) {
+            // ignored
+        }
+    }
+
+    return result;
+}
+
+async function internal_fetch(request: IInternalFetchRequest): Promise<Response> {
+    if (!request.init) request.init = {};
+    request.init.credentials = "include";
+    request.init.headers = {
+        "X-TimeZone": Temporal.Now.timeZone().id,
+        ...request.init.headers
+    };
+
+    const fetch_request = new Request(request.url, request.init);
+    let response: any;
+
+    try {
+        if (request.timeout > 500) {
+            response = await Promise.race([
+                fetch(fetch_request),
+                new Promise((_, reject) => setTimeout(() => reject(new Error("Timeout")), request.timeout))
+            ]);
+        } else {
+            response = await fetch(fetch_request);
+        }
+    } catch (error) {
+        if (error.message === "Timeout") {
+            console.error("Request timed out");
+        } else if (error.message === "Network request failed") {
+            console.error("No internet connection");
+        } else {
+            throw error; // rethrow other unexpected errors
+        }
+    }
+
+    return response;
+}
+
+async function is_401(response: Response): Promise<boolean> {
+    if (response.status === 401) {
+        clear_session_data();
+        await replace("/login");
+        return true;
+    }
+    return false;
+}