const std = @import("std");

fn current_file() []const u8 {
    return @src().file;
}

const cwd = std.fs.path.dirname(current_file()).?;
const path_separator = std.fs.path.sep_str;

/// add this package to exe
pub fn addModule(b: *std.Build, target: std.Build.ResolvedTarget, optimize: std.builtin.OptimizeMode) void {
    // _ = b.addStaticLibrary(.{
    //     .name = "allegro",
    //     .root_source_file = .{ .path = cwd ++ path_separator ++ "allegro.zig" },
    //     .target = target,
    //     .optimize = optimize,
    // });
    _ = b.addModule("allegro", .{
        .root_source_file = .{ .path = cwd ++ path_separator ++ "allegro.zig" },
        .target = target,
        .optimize = optimize,
    });
}

pub fn build(b: *std.Build) !void {
    const target = b.standardTargetOptions(.{});
    const optimize = b.standardOptimizeOption(.{});

    const static = false;

    // Expose this as a module that others can import
    var module = b.addModule("allegro", .{
        .root_source_file = .{ .path = "src/allegro.zig" },
        .target = target,
        .optimize = optimize,
    });

    const allegro_dir = b.option([]const u8, "allegro-dir", "path to a directory that contains the Allegro `lib`, `bin` and `include` folders") orelse "";
    if (allegro_dir.len != 0) {
        module.addIncludePath(.{ .path = b.pathJoin(&[_][]const u8{ allegro_dir, "include" }) });
        module.addLibraryPath(.{ .path = b.pathJoin(&[_][]const u8{ allegro_dir, "lib" }) });
    }

    module.link_libc = true;

    if (static) {
        module.linkSystemLibrary("allegro-static", .{});
        module.linkSystemLibrary("allegro_font-static", .{});
        module.linkSystemLibrary("allegro_image-static", .{});
        module.linkSystemLibrary("allegro_memfile-static", .{});
        module.linkSystemLibrary("allegro_ttf-static", .{});
        module.linkSystemLibrary("dumb", .{});
        module.linkSystemLibrary("FLAC", .{});
        module.linkSystemLibrary("freetype", .{});
        module.linkSystemLibrary("jpeg", .{});
        module.linkSystemLibrary("ogg", .{});
        module.linkSystemLibrary("opus", .{});
        module.linkSystemLibrary("opusfile", .{});
        module.linkSystemLibrary("physfs", .{});
        module.linkSystemLibrary("png16", .{});
        // module.linkSystemLibrary("theoradec", .{});
        module.linkSystemLibrary("vorbis", .{});
        module.linkSystemLibrary("vorbisfile", .{});
        module.linkSystemLibrary("webp", .{});
        module.linkSystemLibrary("webpdecoder", .{});
        module.linkSystemLibrary("webpdemux", .{});
        module.linkSystemLibrary("zlib", .{});
        module.linkSystemLibrary("opengl32", .{});
        // module.linkSystemLibrary("", .{});
        // module.linkSystemLibrary("", .{});
        // module.linkSystemLibrary("", .{});
        // module.linkSystemLibrary("", .{});
        // module.linkSystemLibrary("", .{});
        if (target.result.os.tag == .windows) {
            module.linkSystemLibrary("gdi32", .{});
            module.linkSystemLibrary("ole32", .{});
            module.linkSystemLibrary("shlwapi", .{});
            module.linkSystemLibrary("winmm", .{});
            // module.linkSystemLibrary("", .{});
            // module.linkSystemLibrary("", .{});
            // module.linkSystemLibrary("", .{});
            // module.linkSystemLibrary("", .{});
            // module.linkSystemLibrary("", .{});
            if (target.result.isGnu()) {
                // module.linkSystemLibrary("stdc++", .{});
            }
        }
    } else {
        module.linkSystemLibrary("allegro.dll", .{});
        module.linkSystemLibrary("allegro_font.dll", .{});
        module.linkSystemLibrary("allegro_image.dll", .{});
        module.linkSystemLibrary("allegro_memfile.dll", .{});
        module.linkSystemLibrary("allegro_ttf.dll", .{});
    }
}