const std = @import("std");

/// Single source of truth for the version. `serverInfo.version` in the LSP
/// handshake reads it through the generated `build_options` module below, so the
/// number cannot drift from the package metadata.
const build_zon = @import("build.zig.zon");

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

    const srf_dep = b.dependency("srf", .{
        .target = target,
    });

    const options = b.addOptions();
    options.addOption([]const u8, "version", build_zon.version);

    const exe = b.addExecutable(.{
        .name = "srf-lsp",
        .root_module = b.createModule(.{
            .root_source_file = b.path("src/main.zig"),
            .target = target,
            .optimize = optimize,
            .imports = &.{
                .{ .name = "srf", .module = srf_dep.module("srf") },
                .{ .name = "build_options", .module = options.createModule() },
            },
        }),
    });

    b.installArtifact(exe);

    const run_step = b.step("run", "Run the LSP server");
    const run_cmd = b.addRunArtifact(exe);
    run_step.dependOn(&run_cmd.step);
    run_cmd.step.dependOn(b.getInstallStep());

    if (b.args) |args| {
        run_cmd.addArgs(args);
    }

    const exe_tests = b.addTest(.{
        .root_module = exe.root_module,
    });

    const run_exe_tests = b.addRunArtifact(exe_tests);

    const test_step = b.step("test", "Run tests");
    test_step.dependOn(&run_exe_tests.step);
}