address location fallback logic, for now

src/http/handler.zig

@@ -24,9 +24,21 @@ pub fn handleWeather(
     req: *httpz.Request,
     res: *httpz.Response,
 ) !void {
-    // Get client IP for location detection
-    const client_ip = getClientIP(req);
-    try handleWeatherInternal(opts, req, res, client_ip);
+    // Check for location query parameter first
+    const query_string = req.url.query;
+    const params = try QueryParams.parse(req.arena, query_string);
+    defer {
+        if (params.format) |f| req.arena.free(f);
+        if (params.lang) |l| req.arena.free(l);
+    }
+
+    const location = if (params.location) |loc| loc else blk: {
+        // Fall back to IP-based detection
+        const client_ip = getClientIP(req);
+        break :blk client_ip;
+    };
+
+    try handleWeatherInternal(opts, req, res, location);
 }
 
 pub fn handleWeatherLocation(

src/http/query.zig

@@ -3,6 +3,7 @@ const std = @import("std");
 pub const QueryParams = struct {
     format: ?[]const u8 = null,
     lang: ?[]const u8 = null,
+    location: ?[]const u8 = null,
     units: ?Units = null,
     transparency: ?u8 = null,
 
@@ -26,10 +27,16 @@ pub const QueryParams = struct {
                 params.format = if (value) |v| try allocator.dupe(u8, v) else null;
             } else if (std.mem.eql(u8, key, "lang")) {
                 params.lang = if (value) |v| try allocator.dupe(u8, v) else null;
+            } else if (std.mem.eql(u8, key, "location")) {
+                params.location = if (value) |v| try allocator.dupe(u8, v) else null;
             } else if (std.mem.eql(u8, key, "u")) {
                 params.units = .uscs;
             } else if (std.mem.eql(u8, key, "m")) {
                 params.units = .metric;
+            } else if (std.mem.eql(u8, key, "use_imperial")) {
+                params.units = .uscs;
+            } else if (std.mem.eql(u8, key, "use_metric")) {
+                params.units = .metric;
             } else if (std.mem.eql(u8, key, "transparency")) {
                 if (value) |v| {
                     params.transparency = try std.fmt.parseInt(u8, v, 10);

src/location/resolver.zig

@@ -107,14 +107,17 @@ pub const Resolver = struct {
 
         var response_buf: [1024 * 1024]u8 = undefined;
         var writer = std.Io.Writer.fixed(&response_buf);
-        const result = try client.fetch(.{
+        const result = client.fetch(.{
             .location = .{ .uri = uri },
             .method = .GET,
             .response_writer = &writer,
             .extra_headers = &.{
                 .{ .name = "User-Agent", .value = "wttr.in-zig/1.0" },
             },
-        });
+        }) catch {
+            std.log.warn("Nominatim API call failed for: {s}", .{name});
+            return error.GeocodingFailed;
+        };
 
         if (result.status != .ok) {
             return error.GeocodingFailed;