add config

1 files changed, 39 insertions, 2 deletions

diff --git a/src/config.zig b/src/config.zig
index 687cd25..02d3c8a 100644
--- a/src/config.zig
+++ b/src/config.zig
@@ -1,4 +1,41 @@
 const std = @import("std");
 
-pub const storage_path = "./storage/";
-pub const session_expires_after = std.time.ns_per_week * 4;
+const Self = @This();
+
+const Config = struct {
+    storage_path: []const u8,
+    session_expires_after: usize,
+};
+
+arena: *std.heap.ArenaAllocator,
+storage_path: []const u8,
+session_expires_after: usize,
+
+pub fn load(allocator: std.mem.Allocator) !Self {
+    const home_path = std.posix.getenv("HOME") orelse return error.MissingHome;
+    const home = try std.fs.cwd().openDirZ(
+        home_path,
+        .{},
+    );
+    const file = home.openFile(
+        ".config/memora/config.json",
+        .{}
+    ) catch return error.MissingConfig;
+
+    const content = try file.readToEndAlloc(allocator, std.math.maxInt(usize));
+    defer allocator.free(content);
+
+    const parsed = try std.json.parseFromSlice(Config, allocator, content, .{
+        .allocate = .alloc_always,
+    });
+    return .{
+        .arena = parsed.arena,
+        .storage_path = parsed.value.storage_path,
+        .session_expires_after = parsed.value.session_expires_after * std.time.ns_per_day,
+    };
+}
+
+pub fn deinit(self: *Self) void {
+    self.arena.deinit();
+    self.* = undefined;
+}