const std = @import("std");

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

    const lmdb_c = b.dependency("lmdb", .{
        .target = target,
        .optimize = optimize,
    });

    const lmdb = b.addStaticLibrary(.{
        .name = "lmdb",
        .target = target,
        .optimize = optimize,
    });

    lmdb.linkLibC();

    lmdb.addIncludePath(lmdb_c.path("libraries/liblmdb"));

    var flags = std.ArrayList([]const u8).init(b.allocator);
    defer flags.deinit();

    try flags.appendSlice(&.{
        "-fno-sanitize=all",
        "-pthread",
        "-O2",
        "-g",
        "-W",
        "-Wall",
        "-Wno-unused-parameter",
        "-Wbad-function-cast",
        "-Wuninitialized",
    });

    if (target.result.os.tag.isDarwin()) {
        try flags.appendSlice(&.{"-DURBIT_RUNTIME_OS_DARWIN"});
    }

    lmdb.addCSourceFiles(.{
        .root = lmdb_c.path("libraries/liblmdb"),
        .files = &.{"midl.c"},
        .flags = flags.items,
    });

    lmdb.addCSourceFiles(.{
        .root = b.path("patches/lmdb-0.9.29"),
        .files = &.{"mdb.c"},
        .flags = flags.items,
    });

    lmdb.installHeader(lmdb_c.path("libraries/liblmdb/lmdb.h"), "lmdb/lmdb.h");

    b.installArtifact(lmdb);
}