From 9974b56607e614c09dcb61afccdce9f507c59eda Mon Sep 17 00:00:00 2001
From: Francis Bouvier <francis@lightpanda.io>
Date: Thu, 18 Apr 2024 16:43:19 +0200
Subject: [PATCH] Add Target.createTarget

Signed-off-by: Francis Bouvier <francis@lightpanda.io>
---
 src/cdp/target.zig | 100 ++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 85 insertions(+), 15 deletions(-)

diff --git a/src/cdp/target.zig b/src/cdp/target.zig
index f6985569..9436fe55 100644
--- a/src/cdp/target.zig
+++ b/src/cdp/target.zig
@@ -11,6 +11,7 @@ const TargetMethods = enum {
     setAutoAttach,
     getTargetInfo,
     createBrowserContext,
+    createTarget,
 };
 
 pub fn target(
@@ -26,6 +27,7 @@ pub fn target(
         .setAutoAttach => tagetSetAutoAttach(alloc, id, scanner, ctx),
         .getTargetInfo => tagetGetTargetInfo(alloc, id, scanner, ctx),
         .createBrowserContext => createBrowserContext(alloc, id, scanner, ctx),
+        .createTarget => createTarget(alloc, id, scanner, ctx),
     };
 }
 
@@ -33,6 +35,20 @@ const PageTargetID = "CFCD6EC01573CF29BB638E9DC0F52DDC";
 const BrowserTargetID = "2d2bdef9-1c95-416f-8c0e-83f3ab73a30c";
 const BrowserContextID = "65618675CB7D3585A95049E9DFE95EA9";
 
+const AttachToTarget = struct {
+    sessionId: []const u8,
+    targetInfo: struct {
+        targetId: []const u8,
+        type: []const u8 = "page",
+        title: []const u8,
+        url: []const u8,
+        attached: bool = true,
+        canAccessOpener: bool = false,
+        browserContextId: []const u8,
+    },
+    waitingForDebugger: bool = false,
+};
+
 const TargetFilter = struct {
     type: []const u8,
     exclude: bool,
@@ -56,22 +72,24 @@ fn tagetSetAutoAttach(
     const sessionID = try cdp.getSessionID(scanner);
 
     if (sessionID == null) {
-        const AttachToTarget = struct {
-            sessionId: []const u8 = cdp.SessionID,
-            targetInfo: struct {
-                targetId: []const u8 = PageTargetID,
-                type: []const u8 = "page",
-                title: []const u8 = "New Incognito tab",
-                url: []const u8 = cdp.URLBase,
-                attached: bool = true,
-                canAccessOpener: bool = false,
-                browserContextId: []const u8 = BrowserContextID,
-            } = .{},
-            waitingForDebugger: bool = false,
+        const attached = AttachToTarget{
+            .sessionId = cdp.SessionID,
+            .targetInfo = .{
+                .targetId = PageTargetID,
+                .title = "New Incognito tab",
+                .url = cdp.URLBase,
+                .browserContextId = BrowserContextID,
+            },
         };
-        const attached = try cdp.method(alloc, "Target.attachedToTarget", AttachToTarget, .{}, null);
-        std.log.debug("res {s}", .{attached});
-        try server.sendSync(ctx, attached);
+        const event = try cdp.method(
+            alloc,
+            "Target.attachedToTarget",
+            AttachToTarget,
+            attached,
+            null,
+        );
+        std.log.debug("event {s}", .{event});
+        try server.sendSync(ctx, event);
     }
 
     return result(alloc, id, null, null, sessionID);
@@ -111,6 +129,7 @@ fn tagetGetTargetInfo(
 }
 
 const ContextID = "22648B09EDCCDD11109E2D4FEFBE4F89";
+const ContextSessionID = "4FDC2CB760A23A220497A05C95417CF4";
 
 fn createBrowserContext(
     alloc: std.mem.Allocator,
@@ -135,3 +154,54 @@ fn createBrowserContext(
     };
     return result(alloc, id, Resp, Resp{}, sessionID);
 }
+
+const TargetID = "57356548460A8F29706A2ADF14316298";
+
+fn createTarget(
+    alloc: std.mem.Allocator,
+    id: u64,
+    scanner: *std.json.Scanner,
+    ctx: *Ctx,
+) ![]const u8 {
+
+    // input
+    const Params = struct {
+        url: []const u8,
+        width: ?u64 = null,
+        height: ?u64 = null,
+        browserContextId: []const u8,
+        enableBeginFrameControl: bool = false,
+        newWindow: bool = false,
+        background: bool = false,
+        forTab: ?bool = null,
+    };
+    _ = try getParams(alloc, Params, scanner);
+    const sessionID = try cdp.getSessionID(scanner);
+
+    // send attachToTarget event
+    const attached = AttachToTarget{
+        .sessionId = ContextSessionID,
+        .targetInfo = .{
+            .targetId = TargetID,
+            .title = "",
+            .url = "about:blank",
+            .browserContextId = ContextID,
+        },
+        .waitingForDebugger = true,
+    };
+    const event = try cdp.method(
+        alloc,
+        "Target.attachedToTarget",
+        AttachToTarget,
+        attached,
+        sessionID,
+    );
+    std.log.debug("event {s}", .{event});
+    try server.sendSync(ctx, event);
+
+    // output
+    const Resp = struct {
+        targetId: []const u8 = TargetID,
+    };
+    return result(alloc, id, Resp, Resp{}, sessionID);
+}