const std = @import("std");
const DockerStep = @import("DockerStep.zig");

// Although this function looks imperative, note that its job is to
// declaratively construct a build graph that will be executed by an external
// runner.
pub fn build(b: *std.Build) void {
    // Standard target options allows the person running `zig build` to choose
    // what target to build for. Here we do not override the defaults, which
    // means any target is allowed, and the default is native. Other options
    // for restricting supported target set are available.
    const target = b.standardTargetOptions(.{});

    // Standard optimization options allow the person running `zig build` to select
    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
    // set a preferred release mode, allowing the user to decide how to optimize.
    const optimize = b.standardOptimizeOption(.{});

    const lib = b.addStaticLibrary(.{
        .name = "zmission",
        // In this case the main source file is merely a path, however, in more
        // complicated build scripts, this could be a generated file.
        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });

    // This declares intent for the library to be installed into the standard
    // location when the user invokes the "install" step (the default step when
    // running `zig build`).
    b.installArtifact(lib);

    const docker_run_4_0_3 = DockerStep.create(b, .{
        .name = "transmission-zig",
        .image = "docker.io/linuxserver/transmission:4.0.3",
        .ports = &[_][]const u8{"9091:9091"},
    });

    // Creates a step for unit testing. This only builds the test executable
    // but does not run it.
    const main_tests = b.addTest(.{
        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });

    const run_main_tests = b.addRunArtifact(main_tests);

    // This creates a build step. It will be visible in the `zig build --help` menu,
    // and can be selected like this: `zig build test`
    // This will evaluate the `test` step rather than the default, which is "install".
    const test_step_unit = b.step("test", "Run library unit tests");
    test_step_unit.dependOn(&run_main_tests.step);

    const integration_tests = b.addTest(.{
        .root_source_file = .{ .path = "src/test_int.zig" },
        .target = target,
        .optimize = optimize,
    });

    const run_integration_tests = b.addRunArtifact(integration_tests);

    const test_step_int_4_0_3 = b.step(
        "test-int-4-0-3",
        "Run library integration tests against Transmission 4.0.3",
    );

    //test_step_int.dependOn(&run_main_tests.step);
    test_step_int_4_0_3.dependOn(docker_run_4_0_3.step);
    test_step_int_4_0_3.dependOn(&run_integration_tests.step);
    //const docker_rm = DockerStep.remove(b, "transmission-zig");
    //docker_rm.step.dependOn(test_step_int);
}