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// swift-tools-version: 6.3
import PackageDescription

let package = Package(
    name: "ExpenseKit",
    platforms: [.macOS(.v13), .iOS(.v16)],
    products: [
        .library(name: "ExpenseCore", targets: ["ExpenseCore"]),
        .executable(name: "expense-cli", targets: ["ExpenseCLI"])
    ],
    dependencies: [
        .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.5.0")
    ],
    targets: [
        .target(name: "ExpenseCore"),
        .executableTarget(
            name: "ExpenseCLI",
            dependencies: ["ExpenseCore", .product(name: "ArgumentParser", package: "swift-argument-parser")]
        ),
        .testTarget(name: "ExpenseCoreTests", dependencies: ["ExpenseCore"])
    ]
)

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swift package resolve
swift package update
swift package show-dependencies
swift package dump-package

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.target(
    name: "ExpenseCore",
    resources: [
        .process("Resources"),
        .copy("Fixtures/sample.json")
    ]
)

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import Foundation

let url = Bundle.module.url(forResource: "sample", withExtension: "json")
print(url != nil)
// prints: true

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Sources/
  ExpenseCore/        // 纯模型与规则
  ExpenseStorage/     // 文件/数据库实现
  ExpenseCLI/         // 命令行入口

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.target(
    name: "CKit",
    publicHeadersPath: "include"
)

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// Sources/CKit/include/CKit.h
#include <stdint.h>

int32_t ckit_add(int32_t a, int32_t b);

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// Sources/CKit/CKit.c
#include "CKit.h"

int32_t ckit_add(int32_t a, int32_t b) { return a + b; }

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import CKit

print(ckit_add(2, 3))
// prints: 5

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.systemLibrary(
    name: "CZlib",
    pkgConfig: "zlib",
    providers: [
        .brew(["zlib"]),
        .apt(["zlib1g-dev"])
    ]
)

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@_cdecl("add_numbers")
public func addNumbers(_ a: Int32, _ b: Int32) -> Int32 {
    a + b
}