Track creation time for notes

src/main/api.zig

@@ -4,6 +4,7 @@ const util = @import("util");
 const db = @import("./db.zig");
 
 pub const models = @import("./models.zig");
+pub const DateTime = util.DateTime;
 pub const Uuid = util.Uuid;
 
 // Frees an api struct and its fields allocated from alloc
@@ -12,7 +13,7 @@ pub fn free(alloc: std.mem.Allocator, val: anytype) void {
         // TODO
         if (f.field_type == []u8 or f.field_type == []const u8) {
             alloc.free(@field(val, f.name));
-        } else if (f.field_type == Uuid) {
+        } else if (f.field_type == Uuid or f.field_type == DateTime) {
             // nothing
         } else {
             @compileError("unsupported field type " ++ @typeName(f.field_type));
@@ -89,6 +90,8 @@ pub const ApiServer = struct {
             .id = id,
             .author_id = ctx.user.id,
             .content = info.content,
+
+            .created_at = DateTime.now(),
         };
         try self.db.insert(models.Note, note);
 

src/main/db.zig

@@ -104,6 +104,7 @@ pub const Database = struct {
         \\  id TEXT PRIMARY KEY,
         \\  content TEXT NOT NULL,
         \\  author_id TEXT NOT NULL,
+        \\  created_at INTEGER NOT NULL DEFAULT CURRENT_TIMESTAMP,
         \\
         \\  FOREIGN KEY (author_id) REFERENCES user(id)
         \\) STRICT;
@@ -153,12 +154,7 @@ pub const Database = struct {
         @field(result, field_name) = val;
 
         inline for (fields) |f, i| {
-            @field(result, f) = switch (@TypeOf(@field(result, f))) {
-                // TODO: Handle allocation failures gracefully
-                []const u8 => row.getTextAlloc(i, alloc) catch unreachable,
-                Uuid => row.getUuid(i) catch unreachable,
-                else => @compileError("unknown type " ++ @typeName(@TypeOf(@field(result, f)))),
-            };
+            @field(result, f) = row.getAlloc(@TypeOf(@field(result, f)), i, alloc) catch unreachable;
         }
 
         return result;

src/main/main.zig

@@ -36,7 +36,7 @@ pub const RequestServer = struct {
         };
     }
 
-    fn listenAndRun(self: *RequestServer, addr: std.net.Address) noreturn {
+    fn listenAndRun(self: *RequestServer, addr: std.net.Address) !void {
         var srv = http.Server.listen(addr) catch unreachable;
         defer srv.shutdown();
 
@@ -45,12 +45,12 @@ pub const RequestServer = struct {
             var fba = std.heap.FixedBufferAllocator.init(&buf);
             const alloc = fba.allocator();
 
-            var ctx = srv.accept(alloc) catch unreachable;
+            var ctx = try srv.accept(alloc);
             defer ctx.close();
 
             router.dispatch(self, &ctx, ctx.request.method, ctx.request.path) catch |err| switch (err) {
                 error.NotFound, error.RouteNotApplicable => c.notFound(self, &ctx),
-                else => unreachable,
+                else => return err,
             };
         }
     }
@@ -59,5 +59,5 @@ pub const RequestServer = struct {
 pub fn main() anyerror!void {
     var gpa = std.heap.GeneralPurposeAllocator(.{}){};
     var srv = try RequestServer.init(gpa.allocator());
-    srv.listenAndRun(std.net.Address.parseIp("0.0.0.0", 8080) catch unreachable);
+    return srv.listenAndRun(std.net.Address.parseIp("0.0.0.0", 8080) catch unreachable);
 }

src/main/models.zig

@@ -1,9 +1,15 @@
-const Uuid = @import("util").Uuid;
+const std = @import("std");
+const util = @import("util");
+
+const Uuid = util.Uuid;
+const DateTime = util.DateTime;
 
 pub const Note = struct {
     id: Uuid,
     content: []const u8,
     author_id: Uuid,
+
+    created_at: DateTime,
 };
 
 pub const User = struct {

src/sql/lib.zig

@@ -1,9 +1,11 @@
 const std = @import("std");
+const util = @import("util");
 const c = @cImport({
     @cInclude("sqlite3.h");
 });
 
-const Uuid = @import("util").Uuid;
+const Uuid = util.Uuid;
+const DateTime = util.DateTime;
 
 pub const Sqlite = struct {
     db: *c.sqlite3,
@@ -66,6 +68,21 @@ pub const Row = struct {
         _ = try self.getText(idx, &buf);
         return try Uuid.parse(buf[0..Uuid.string_len]);
     }
+
+    pub fn getDateTime(self: Row, idx: u15) !DateTime {
+        return DateTime{ .seconds_since_epoch = try self.getI64(idx) };
+    }
+
+    pub fn getAlloc(self: Row, comptime T: type, idx: u15, alloc: std.mem.Allocator) !T {
+        // TODO: handle optionals
+        return switch (T) {
+            []u8, []const u8 => self.getTextAlloc(idx, alloc),
+            i64 => self.getI64(idx),
+            Uuid => self.getUuid(idx),
+            DateTime => self.getDateTime(idx),
+            else => @compileError("unknown type " ++ @typeName(T)),
+        };
+    }
 };
 
 pub const PreparedStmt = struct {
@@ -93,17 +110,22 @@ pub const PreparedStmt = struct {
 
     pub fn bindI64(self: *PreparedStmt, idx: u15, val: i64) !void {
         return switch (c.sqlite3_bind_int64(self.stmt, idx, val)) {
-            .SQLITE_OK => {},
+            c.SQLITE_OK => {},
             else => error.UnknownError,
         };
     }
 
+    pub fn bindDateTime(self: *PreparedStmt, idx: u15, val: DateTime) !void {
+        return self.bindI64(idx, val.seconds_since_epoch);
+    }
+
     pub fn bind(self: *PreparedStmt, idx: u15, val: anytype) !void {
         return switch (@TypeOf(val)) {
-            []const u8 => self.bindText(idx, val),
+            []u8, []const u8 => self.bindText(idx, val),
             i64 => self.bindI64(idx, val),
             Uuid => self.bindUuid(idx, val),
-            @Type(.Null) => self.bindNull(idx),
+            DateTime => self.bindDateTime(idx, val),
+            @TypeOf(null) => self.bindNull(idx),
             else => @compileError("Unknown Type"),
         };
     }

src/util/DateTime.zig

@@ -21,7 +21,7 @@ pub fn month(value: DateTime) std.time.epoch.Month {
 }
 
 pub fn day(value: DateTime) u9 {
-    return value.epochSeconds().getEpochDay().calculateYearDay().calculateMonthDay().day;
+    return value.epochSeconds().getEpochDay().calculateYearDay().calculateMonthDay().day_index;
 }
 
 pub fn hour(value: DateTime) u5 {
@@ -39,7 +39,7 @@ pub fn second(value: DateTime) u6 {
 pub fn format(value: DateTime, comptime _: []const u8, _: std.fmt.FormatOptions, writer: anytype) !void {
     return std.fmt.format(
         writer,
-        "{}-{}-{}T{}{}{}",
+        "{}-{}-{} {}:{}:{}",
         .{ value.year(), value.month().numeric(), value.day(), value.hour(), value.minute(), value.second() },
     );
 }