From df2e6dcfc0b2efdc608856f945e7d2ec38f7dca9 Mon Sep 17 00:00:00 2001
From: Pierre Tachoire <pierre@lightpanda.io>
Date: Wed, 20 Dec 2023 11:08:17 +0100
Subject: [PATCH] get: start work on get command

---
 src/browser/browser.zig | 26 ++++++++++++++-----
 src/main_get.zig        | 57 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+), 7 deletions(-)
 create mode 100644 src/main_get.zig

diff --git a/src/browser/browser.zig b/src/browser/browser.zig
index 6fa291d2..452d3ed2 100644
--- a/src/browser/browser.zig
+++ b/src/browser/browser.zig
@@ -10,6 +10,7 @@ const TPL = jsruntime.TPL;
 
 const apiweb = @import("../apiweb.zig");
 const apis = jsruntime.compile(apiweb.Interfaces);
+
 const Window = @import("../nav/window.zig").Window;
 
 const log = std.log.scoped(.lpd_browser);
@@ -65,11 +66,13 @@ pub const Session = struct {
 pub const Page = struct {
     arena: std.heap.ArenaAllocator,
     session: *Session,
+    env: Env,
 
     fn init(session: *Session) Page {
         return Page{
             .session = session,
             .arena = std.heap.ArenaAllocator.init(session.allocator),
+            .env = undefined,
         };
     }
 
@@ -93,33 +96,42 @@ pub const Page = struct {
 
         if (result.body == null) return error.NoBody;
 
+        // TODO check content-type
+
         // TODO handle charset
 
         // document
+        log.debug("parse html", .{});
         const html_doc = try parser.documentHTMLParseFromStrAlloc(allocator, result.body.?);
         const doc = parser.documentHTMLToDocument(html_doc);
 
-        // create JS env
+        log.debug("init loop", .{});
         var loop = try Loop.init(allocator);
         defer loop.deinit();
-        var js_env = try Env.init(allocator, &loop);
-        defer js_env.deinit();
+
+        // create JS env
+        log.debug("init js env", .{});
+        self.env = try Env.init(allocator, &loop);
+        defer self.env.deinit();
 
         // load APIs in JS env
+        log.debug("load js apis", .{});
         var tpls: [apis.len]TPL = undefined;
-        try js_env.load(apis, &tpls);
+        try self.env.load(apis, &tpls);
 
         // start JS env
-        try js_env.start(allocator, apis);
-        defer js_env.stop();
+        log.debug("start js env", .{});
+        try self.env.start(allocator, apis);
+        defer self.env.stop();
 
         // add global objects
+        log.debug("setup global env", .{});
         const window = Window.create(doc, null);
         _ = window;
         // TODO should'nt we share the same pointer between instances of window?
         // try js_env.addObject(apis, window, "self");
         // try js_env.addObject(apis, window, "window");
-        try js_env.addObject(apis, doc, "document");
+        try self.env.addObject(apis, doc, "document");
     }
 };
 
diff --git a/src/main_get.zig b/src/main_get.zig
new file mode 100644
index 00000000..d4700773
--- /dev/null
+++ b/src/main_get.zig
@@ -0,0 +1,57 @@
+const std = @import("std");
+const b = @import("browser/browser.zig");
+
+pub const std_options = struct {
+    pub const log_level = .debug;
+};
+
+const usage =
+    \\usage: {s} [options] <url>
+    \\  request the url with the browser
+    \\
+    \\  -h, --help       Print this help message and exit.
+    \\
+;
+
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    defer {
+        const check = gpa.deinit();
+        if (check == .leak) {
+            std.log.warn("leaks detected\n", .{});
+        }
+    }
+    const allocator = gpa.allocator();
+
+    var args = try std.process.argsWithAllocator(allocator);
+    defer args.deinit();
+
+    const execname = args.next().?;
+    var url: []const u8 = "";
+
+    while (args.next()) |arg| {
+        if (std.mem.eql(u8, "-h", arg) or std.mem.eql(u8, "--help", arg)) {
+            try std.io.getStdErr().writer().print(usage, .{execname});
+            std.os.exit(0);
+        }
+        // allow only one url
+        if (url.len != 0) {
+            try std.io.getStdErr().writer().print(usage, .{execname});
+            std.os.exit(1);
+        }
+        url = arg;
+    }
+
+    if (url.len == 0) {
+        try std.io.getStdErr().writer().print(usage, .{execname});
+        std.os.exit(1);
+    }
+
+    var browser = b.Browser.init(allocator);
+    defer browser.deinit();
+
+    var page = try browser.currentSession().createPage();
+    defer page.deinit();
+
+    try page.navigate(url);
+}