nostrscript: add a helper function

damus-c/nostrscript.c

@@ -97,6 +97,23 @@ static int nostr_log(struct wasm_interp *interp) {
     return 1;
 }
 
+static int nostr_set_bool(struct wasm_interp *interp) {
+    struct val *params = NULL;
+    const u16 *setting;
+    u32 val, len;
+
+    if (!get_params(interp, &params, 3) || params == NULL)
+        return 0;
+
+    if (!mem_ptr_str(interp, params[0].num.i32, (const char**)&setting))
+        return 0;
+
+    len = params[1].num.i32;
+    val = params[2].num.i32 > 0 ? 1 : 0;
+
+    return nscript_set_bool(interp, setting, len, val);
+}
+
 static int nostr_pool_send_to(struct wasm_interp *interp) {
     struct val *params = NULL;
     const u16 *req, *to;
@@ -149,6 +166,7 @@ static struct builtin nscript_builtins[] = {
     { .name = "nostr_log", .fn = nostr_log },
     { .name = "nostr_cmd", .fn = nostr_cmd },
     { .name = "nostr_pool_send_to", .fn = nostr_pool_send_to },
+    { .name = "nostr_set_bool", .fn = nostr_set_bool },
     { .name = "abort", .fn = nscript_abort },
 };
 

damus-c/nostrscript.h

@@ -18,6 +18,7 @@
 int nscript_load(struct wasm_parser *p, struct wasm_interp *interp, unsigned char *wasm, unsigned long len);
 int nscript_nostr_cmd(struct wasm_interp *interp, int, void*, int);
 int nscript_pool_send_to(struct wasm_interp *interp, const u16*, int, const u16 *, int);
+int nscript_set_bool(struct wasm_interp *interp, const u16*, int, int);
 
 
 #endif /* nostrscript_h */

damus.xcodeproj/project.pbxproj

@@ -45,6 +45,7 @@
 		4C0A3F8F280F640A000448DE /* ThreadModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C0A3F8E280F640A000448DE /* ThreadModel.swift */; };
 		4C0A3F93280F66F5000448DE /* ReplyMap.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C0A3F92280F66F5000448DE /* ReplyMap.swift */; };
 		4C190F202A535FC200027FD5 /* CustomizeZapModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C190F1F2A535FC200027FD5 /* CustomizeZapModel.swift */; };
+		4C190F222A53950D00027FD5 /* bool_setting.wasm in Resources */ = {isa = PBXBuildFile; fileRef = 4C190F212A53950D00027FD5 /* bool_setting.wasm */; };
 		4C198DEF29F88C6B004C165C /* BlurHashEncode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C198DEB29F88C6B004C165C /* BlurHashEncode.swift */; };
 		4C198DF029F88C6B004C165C /* Readme.md in Resources */ = {isa = PBXBuildFile; fileRef = 4C198DEC29F88C6B004C165C /* Readme.md */; };
 		4C198DF129F88C6B004C165C /* License.txt in Resources */ = {isa = PBXBuildFile; fileRef = 4C198DED29F88C6B004C165C /* License.txt */; };
@@ -468,6 +469,7 @@
 		4C0A3F8E280F640A000448DE /* ThreadModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ThreadModel.swift; sourceTree = "<group>"; };
 		4C0A3F92280F66F5000448DE /* ReplyMap.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ReplyMap.swift; sourceTree = "<group>"; };
 		4C190F1F2A535FC200027FD5 /* CustomizeZapModel.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CustomizeZapModel.swift; sourceTree = "<group>"; };
+		4C190F212A53950D00027FD5 /* bool_setting.wasm */ = {isa = PBXFileReference; lastKnownFileType = file; name = bool_setting.wasm; path = nostrscript/bool_setting.wasm; sourceTree = SOURCE_ROOT; };
 		4C198DEB29F88C6B004C165C /* BlurHashEncode.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BlurHashEncode.swift; sourceTree = "<group>"; };
 		4C198DEC29F88C6B004C165C /* Readme.md */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = net.daringfireball.markdown; path = Readme.md; sourceTree = "<group>"; };
 		4C198DED29F88C6B004C165C /* License.txt */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = License.txt; sourceTree = "<group>"; };
@@ -1027,6 +1029,7 @@
 		4C4F14AA2A2A76270045A0B9 /* Fixtures */ = {
 			isa = PBXGroup;
 			children = (
+				4C190F212A53950D00027FD5 /* bool_setting.wasm */,
 				4C4F14AB2A2A763B0045A0B9 /* primal.wasm */,
 			);
 			path = Fixtures;
@@ -1717,6 +1720,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				4C190F222A53950D00027FD5 /* bool_setting.wasm in Resources */,
 				4C4F14AC2A2A763B0045A0B9 /* primal.wasm in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

damus/Models/UserSettingsStore.swift

@@ -15,7 +15,7 @@ let fallback_zap_amount = 1000
     private var value: T
 
     init(key: String, default_value: T) {
-        if T is bool {
+        if T.self == Bool.self {
             UserSettingsStore.bool_options.insert(key)
         }
         self.key = pk_setting_key(UserSettingsStore.pubkey ?? "", key: key)

damusTests/NostrScriptTests.swift

@@ -18,14 +18,46 @@ final class NostrScriptTests: XCTestCase {
         // Put teardown code here. This method is called after the invocation of each test method in the class.
     }
 
-    func loadTestWasm() throws -> Data {
+    func read_bundle_file(name: String, ext: String) throws -> Data {
         let bundle = Bundle(for: type(of: self))
-        guard let fileURL = bundle.url(forResource: "primal", withExtension: "wasm") else {
+        guard let fileURL = bundle.url(forResource: name, withExtension: ext) else {
             throw CocoaError(.fileReadNoSuchFile)
         }
 
         return try Data(contentsOf: fileURL)
     }
+
+    func loadTestWasm() throws -> Data {
+        return try read_bundle_file(name: "primal", ext: "wasm")
+    }
+
+    func load_bool_set_test_wasm() throws -> Data {
+        return try read_bundle_file(name: "bool_setting", ext: "wasm")
+    }
+
+    func test_bool_set() throws {
+        var data = try load_bool_set_test_wasm().bytes
+        let pool = RelayPool()
+        let script = NostrScript(pool: pool)
+        let pk = "32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245"
+        UserSettingsStore.pubkey = pk
+        let key = pk_setting_key(pk, key: "nozaps")
+        UserDefaults.standard.set(true, forKey: key)
+
+        let load_err = script.load(wasm: &data)
+        XCTAssertNil(load_err)
+
+        let res = script.run()
+        switch res {
+        case .finished:
+            let set = UserDefaults.standard.bool(forKey: key)
+            XCTAssertEqual(set, false)
+        case .runtime_err: XCTAssert(false)
+        case .suspend:
+            XCTAssert(false)
+            break
+        }
+    }
 
     func test_nostrscript() throws {
         var data = try loadTestWasm().bytes

nostrscript/NostrScript.swift

@@ -281,6 +281,23 @@ func nscript_add_relay(script: NostrScript, relay: String) -> Bool {
 }
 
 
+@_cdecl("nscript_set_bool")
+public func nscript_set_bool(interp: UnsafeMutablePointer<wasm_interp>?, setting: UnsafePointer<UInt16>, setting_len: Int32, val: Int32) -> Int32 {
+
+    guard let setting = asm_str(cstr: setting, len: setting_len),
+          UserSettingsStore.bool_options.contains(setting)
+    else {
+        stack_push_i32(interp, 0);
+        return 1;
+    }
+
+    let key = pk_setting_key(UserSettingsStore.pubkey ?? "", key: setting)
+    UserDefaults.standard.set(val > 0 ? true : false, forKey: key)
+
+    stack_push_i32(interp, 1);
+    return 1;
+}
+
 @_cdecl("nscript_pool_send_to")
 public func nscript_pool_send_to(interp: UnsafeMutablePointer<wasm_interp>?, preq: UnsafePointer<UInt16>, req_len: Int32, to: UnsafePointer<UInt16>, to_len: Int32) -> Int32 {
 

nostrscript/bool_setting.ts

@@ -0,0 +1,18 @@
+
+import * as nostr from './nostr'
+
+export function go(): i32 {
+	var setting = "mny`or"
+	var new_setting = ""
+	for (let i = 0; i < setting.length; i++) {
+		new_setting += String.fromCharCode(setting.charCodeAt(i) + 1);
+	}
+	// this should fail
+	if (nostr.set_bool_setting("shmorg", true)) {
+		// you shouldn't be able to set settings that dont exist
+		return 0;
+	}
+	return nostr.set_bool_setting(new_setting, false)
+}
+
+go()

nostrscript/nostr.ts

@@ -24,6 +24,7 @@ enum Command {
 declare function nostr_log(log: string): void;
 declare function nostr_cmd(cmd: i32, val: i32, len: i32): i32;
 declare function nostr_pool_send_to(req: string, req_len: i32, to: string, to_len: i32): void;
+declare function nostr_set_bool(key: string, key_len: i32, val: i32): i32;
 
 export function pool_send(req: string): void {
 	nostr_cmd(Command.POOL_SEND, changetype<i32>(req), req.length)
@@ -52,6 +53,10 @@ export function event_get_note(ev: Event): Note {
 	return nostr_cmd(Command.EVENT_GET_NOTE, ev, 0)
 }
 
+export function set_bool_setting(setting: string, value: boolean): i32 {
+	return nostr_set_bool(setting, setting.length, value)
+}
+
 export function note_get_kind(note: Note): u32 {
 	if (!note) return 0;
 	return nostr_cmd(Command.NOTE_GET_KIND, note, 0);