const std = @import("std");
const builtin = @import("builtin");
const http = @import("http");
const util = @import("util");

const api = @import("./api.zig");
const models = @import("./models.zig");
const Uuid = util.Uuid;
const c = @import("./controllers.zig");

// this thing is overcomplicated and weird. stop this
const Router = http.Router(*RequestServer);
const Route = Router.Route;
const RouteArgs = http.RouteArgs;
const router = Router{
    .routes = &[_]Route{
        Route.new(.GET, "/healthcheck", c.healthcheck),

        Route.new(.GET, "/auth/authenticate", c.authenticate),

        Route.new(.GET, "/notes/:id", c.getNote),
        Route.new(.POST, "/notes", c.createNote),
        Route.new(.GET, "/notes/:id/reacts", c.listReacts),
        Route.new(.POST, "/notes/:id/reacts", c.react),
        Route.new(.GET, "/users/:id", c.getUser),
        Route.new(.POST, "/users", c.createUser),
    },
};

pub const RequestServer = struct {
    alloc: std.mem.Allocator,
    api: api.ApiServer,

    fn init(alloc: std.mem.Allocator) !RequestServer {
        return RequestServer{
            .alloc = alloc,
            .api = try api.ApiServer.init(alloc),
        };
    }

    fn listenAndRun(self: *RequestServer, addr: std.net.Address) !void {
        var srv = http.Server.listen(addr) catch unreachable;
        defer srv.shutdown();

        while (true) {
            var buf: [1 << 20]u8 = undefined;
            var fba = std.heap.FixedBufferAllocator.init(&buf);
            const alloc = fba.allocator();

            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 => return err,
            };
        }
    }
};

pub fn main() anyerror!void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    var srv = try RequestServer.init(gpa.allocator());
    return srv.listenAndRun(std.net.Address.parseIp("0.0.0.0", 8080) catch unreachable);
}