const std = @import("std");
const Coverage = @import("build/Coverage.zig");

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

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

    const zfin_dep = b.dependency("zfin", .{
        .target = target,
        .optimize = optimize,
    });

    const imports: []const std.Build.Module.Import = &.{
        .{ .name = "srf", .module = srf_mod },
        .{ .name = "zfin", .module = zfin_dep.module("zfin") },
    };

    const exe_mod = b.createModule(.{
        .root_source_file = b.path("src/main.zig"),
        .target = target,
        .optimize = optimize,
        .imports = imports,
    });

    const exe = b.addExecutable(.{
        .name = "zfin-vestwell",
        .root_module = exe_mod,
    });
    b.installArtifact(exe);

    const run_cmd = b.addRunArtifact(exe);
    run_cmd.step.dependOn(b.getInstallStep());
    if (b.args) |args| run_cmd.addArgs(args);
    b.step("run", "Build and run the CLI").dependOn(&run_cmd.step);

    const test_mod = b.createModule(.{
        .root_source_file = b.path("src/main.zig"),
        .target = target,
        .optimize = optimize,
        .imports = imports,
    });
    const unit_tests = b.addTest(.{ .root_module = test_mod });
    const run_tests = b.addRunArtifact(unit_tests);
    b.step("test", "Run all tests").dependOn(&run_tests.step);

    // Coverage: `zig build coverage -Dcoverage-threshold=N` (kcov, Linux only).
    // kcov is downloaded into the zig cache on first use.
    {
        var cov = Coverage.init(b);
        const cov_mod = b.createModule(.{
            .root_source_file = b.path("src/main.zig"),
            .target = target,
            .optimize = optimize,
            .imports = imports,
        });
        _ = cov.addModule(cov_mod, "zfin-vestwell");
    }
}