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// Copyright 2025 Shota FUJI
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0

const std = @import("std");
const clap = @import("clap");
const core = @import("core");

const exit = @import("../../exit.zig").exit;

const OutputFormat = enum {
    text,
};

const parser = .{
    .format = clap.parsers.enumeration(OutputFormat),
    .sec = clap.parsers.int(u32, 10),
};

const params = clap.parseParamsComptime(
    \\-h, --help Prints this message to stdout and exits.
    \\-f, --format <format> Output format.
    \\-r, --resend <sec> Interval for sending request.
    \\-t, --timeout <sec> Exits after <sec>.
    \\Available values are:
    \\* text ... Plain text format for human consumption.
    \\
);

pub fn run(allocator: std.mem.Allocator, iter: *std.process.ArgIterator) noreturn {
    var diag = clap.Diagnostic{};
    var res = clap.parseEx(clap.Help, &params, parser, iter, .{
        .diagnostic = &diag,
        .allocator = allocator,
    }) catch |err| {
        diag.report(std.io.getStdErr().writer(), err) catch {};
        exit(.incorrect_usage);
    };
    defer res.deinit();

    if (res.args.help > 0) {
        clap.help(std.io.getStdOut().writer(), clap.Help, &params, .{}) catch {};
        exit(.ok);
    }

    const resend = res.args.resend orelse 1;
    const timeout = res.args.timeout orelse 3;

    _ = resend;
    _ = timeout;

    std.debug.print("Not implemented, but adder(1,2) = {}\n", .{core.adder(1, 2)});
    exit(.not_ok);
}