#!/usr/bin/env python3
"""
Generate Proximity.xcodeproj from the source tree.

Produces a valid Xcode project (objectVersion 77 / Xcode 16) with:
  - Proximity app target (iOS, SwiftUI)
  - ProximityUITests UI testing target
  - A shared scheme so `xcodebuild test` works out of the box

Run from the repo root:
    python3 scripts/generate_xcodeproj.py
"""
import os
import uuid
import json

ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
APP_DIR = os.path.join(ROOT, "Proximity")
UITEST_DIR = os.path.join(ROOT, "ProximityUITests")
OUT_DIR = os.path.join(ROOT, "Proximity.xcodeproj")

# ---------------------------------------------------------------------------
# Stable-ish ID generation (deterministic per path so re-runs are stable)
# ---------------------------------------------------------------------------
def stable_id(seed: str) -> str:
    # 24 hex chars, deterministic from the seed string.
    h = uuid.uuid5(uuid.NAMESPACE_URL, seed).hex
    return h[:24].upper()

# ---------------------------------------------------------------------------
# Collect source files
# ---------------------------------------------------------------------------
def swift_files(directory: str) -> list[str]:
    files = []
    for dirpath, _, filenames in os.walk(directory):
        for f in sorted(filenames):
            if f.endswith(".swift"):
                full = os.path.join(dirpath, f)
                rel = os.path.relpath(full, ROOT)
                files.append(rel)
    return files

app_sources = swift_files(APP_DIR)
uitest_sources = swift_files(UITEST_DIR)

# ---------------------------------------------------------------------------
# Build the pbxproj
# ---------------------------------------------------------------------------
def build():
    lines = []
    add = lines.append

    # --- Object IDs ---
    proj_id = stable_id("project")
    app_target_id = stable_id("target:Proximity")
    uitest_target_id = stable_id("target:ProximityUITests")
    app_config_list_id = stable_id("configlist:Proximity")
    uitest_config_list_id = stable_id("configlist:ProximityUITests")
    proj_config_list_id = stable_id("configlist:project")
    app_debug_id = stable_id("config:Proximity:Debug")
    app_release_id = stable_id("config:Proximity:Release")
    uitest_debug_id = stable_id("config:ProximityUITests:Debug")
    uitest_release_id = stable_id("config:ProximityUITests:Release")
    proj_debug_id = stable_id("config:project:Debug")
    proj_release_id = stable_id("config:project:Release")
    sources_build_phase_id = stable_id("phase:sources:Proximity")
    frameworks_build_phase_id = stable_id("phase:frameworks:Proximity")
    resources_build_phase_id = stable_id("phase:resources:Proximity")
    uitest_sources_phase_id = stable_id("phase:sources:ProximityUITests")
    uitest_frameworks_phase_id = stable_id("phase:frameworks:ProximityUITests")
    uitest_resources_phase_id = stable_id("phase:resources:ProximityUITests")
    app_product_id = stable_id("product:Proximity.app")
    uitest_product_id = stable_id("product:ProximityUITests.xctest")
    app_group_id = stable_id("group:Proximity")
    uitest_group_id = stable_id("group:ProximityUITests")
    main_group_id = stable_id("group:main")
    products_group_id = stable_id("group:products")
    app_target_dep_id = stable_id("dep:ProximityUITests->Proximity")
    container_proxy_id = stable_id("proxy:ProximityUITests->Proximity")

    # Build file IDs per source file (deterministic).
    app_build_files = {}
    for src in app_sources:
        app_build_files[src] = stable_id("buildfile:" + src)
    uitest_build_files = {}
    for src in uitest_sources:
        uitest_build_files[src] = stable_id("buildfile:" + src)

    # File reference IDs per source file.
    app_file_refs = {}
    for src in app_sources:
        app_file_refs[src] = stable_id("fileref:" + src)
    uitest_file_refs = {}
    for src in uitest_sources:
        uitest_file_refs[src] = stable_id("fileref:" + src)

    add("// !$*UTF8*$!")
    add("{")
    add("\tarchiveVersion = 1;")
    add("\tclasses = {")
    add("\t};")
    add("\tobjectVersion = 77;")
    add("\tobjects = {")

    # ---------------- PBXBuildFile ----------------
    add("\t\t/* Begin PBXBuildFile section */")
    for src in app_sources:
        add(f'\t\t{app_build_files[src]} /* {os.path.basename(src)} in Sources */ = {{isa = PBXBuildFile; fileRef = {app_file_refs[src]} /* {os.path.basename(src)} */; }};')
    for src in uitest_sources:
        add(f'\t\t{uitest_build_files[src]} /* {os.path.basename(src)} in Sources */ = {{isa = PBXBuildFile; fileRef = {uitest_file_refs[src]} /* {os.path.basename(src)} */; }};')
    add("\t\t/* End PBXBuildFile section */")

    # ---------------- PBXContainerItemProxy ----------------
    add("\t\t/* Begin PBXContainerItemProxy section */")
    add(f'\t\t{container_proxy_id} /* PBXContainerItemProxy */ = {{')
    add("\t\t\tisa = PBXContainerItemProxy;")
    add(f"\t\t\tcontainerPortal = {proj_id} /* Project object */;")
    add("\t\t\tproxyType = 1;")
    add(f"\t\t\tremoteGlobalIDString = {app_target_id};")
    add(f"\t\t\tremoteInfo = Proximity;")
    add("\t\t};")
    add("\t\t/* End PBXContainerItemProxy section */")

    # ---------------- PBXFileReference (products) ----------------
    add("\t\t/* Begin PBXFileReference section */")
    add(f'\t\t{app_product_id} /* Proximity.app */ = {{isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Proximity.app; sourceTree = BUILT_PRODUCTS_DIR; }};')
    add(f'\t\t{uitest_product_id} /* ProximityUITests.xctest */ = {{isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = ProximityUITests.xctest; sourceTree = BUILT_PRODUCTS_DIR; }};')
    # Source file refs
    for src in app_sources:
        add(f'\t\t{app_file_refs[src]} /* {os.path.basename(src)} */ = {{isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = {os.path.basename(src)}; sourceTree = "<group>"; }};')
    for src in uitest_sources:
        add(f'\t\t{uitest_file_refs[src]} /* {os.path.basename(src)} */ = {{isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = {os.path.basename(src)}; sourceTree = "<group>"; }};')
    add("\t\t/* End PBXFileReference section */")

    # ---------------- PBXFrameworksBuildPhase ----------------
    add("\t\t/* Begin PBXFrameworksBuildPhase section */")
    add(f'\t\t{frameworks_build_phase_id} /* Frameworks */ = {{')
    add("\t\t\tisa = PBXFrameworksBuildPhase;")
    add("\t\t\tbuildActionMask = 2147483647;")
    add("\t\t\tfiles = (")
    add("\t\t\t);")
    add("\t\t\trunOnlyForDeploymentPostprocessing = 0;")
    add("\t\t};")
    add(f'\t\t{uitest_frameworks_phase_id} /* Frameworks */ = {{')
    add("\t\t\tisa = PBXFrameworksBuildPhase;")
    add("\t\t\tbuildActionMask = 2147483647;")
    add("\t\t\tfiles = (")
    add("\t\t\t);")
    add("\t\t\trunOnlyForDeploymentPostprocessing = 0;")
    add("\t\t};")
    add("\t\t/* End PBXFrameworksBuildPhase section */")

    # ---------------- PBXGroup ----------------
    add("\t\t/* Begin PBXGroup section */")
    add(f'\t\t{main_group_id} = {{')
    add("\t\t\tisa = PBXGroup;")
    add("\t\t\tchildren = (")
    add(f"\t\t\t\t{app_group_id} /* Proximity */,")
    add(f"\t\t\t\t{uitest_group_id} /* ProximityUITests */,")
    add(f"\t\t\t\t{products_group_id} /* Products */,")
    add("\t\t\t);")
    add("\t\t\tsourceTree = \"<group>\";")
    add("\t\t};")
    add(f'\t\t{app_group_id} /* Proximity */ = {{')
    add("\t\t\tisa = PBXGroup;")
    add("\t\t\tchildren = (")
    for src in app_sources:
        add(f"\t\t\t\t{app_file_refs[src]} /* {os.path.basename(src)} */,")
    add("\t\t\t);")
    add("\t\t\tpath = Proximity;")
    add("\t\t\tsourceTree = \"<group>\";")
    add("\t\t};")
    add(f'\t\t{uitest_group_id} /* ProximityUITests */ = {{')
    add("\t\t\tisa = PBXGroup;")
    add("\t\t\tchildren = (")
    for src in uitest_sources:
        add(f"\t\t\t\t{uitest_file_refs[src]} /* {os.path.basename(src)} */,")
    add("\t\t\t);")
    add("\t\t\tpath = ProximityUITests;")
    add("\t\t\tsourceTree = \"<group>\";")
    add("\t\t};")
    add(f'\t\t{products_group_id} /* Products */ = {{')
    add("\t\t\tisa = PBXGroup;")
    add("\t\t\tchildren = (")
    add(f"\t\t\t\t{app_product_id} /* Proximity.app */,")
    add(f"\t\t\t\t{uitest_product_id} /* ProximityUITests.xctest */,")
    add("\t\t\t);")
    add("\t\t\tname = Products;")
    add("\t\t\tsourceTree = \"<group>\";")
    add("\t\t};")
    add("\t\t/* End PBXGroup section */")

    # ---------------- PBXNativeTarget ----------------
    add("\t\t/* Begin PBXNativeTarget section */")
    add(f'\t\t{app_target_id} /* Proximity */ = {{')
    add("\t\t\tisa = PBXNativeTarget;")
    add(f"\t\t\tbuildConfigurationList = {app_config_list_id} /* Build configuration list for PBXNativeTarget \\\"Proximity\\\" */;")
    add("\t\t\tbuildPhases = (")
    add(f"\t\t\t\t{sources_build_phase_id} /* Sources */,")
    add(f"\t\t\t\t{frameworks_build_phase_id} /* Frameworks */,")
    add(f"\t\t\t\t{resources_build_phase_id} /* Resources */,")
    add("\t\t\t);")
    add("\t\t\tbuildRules = (")
    add("\t\t\t);")
    add("\t\t\tdependencies = (")
    add("\t\t\t);")
    add(f"\t\t\tname = Proximity;")
    add(f"\t\t\tproductName = Proximity;")
    add(f"\t\t\tproductReference = {app_product_id} /* Proximity.app */;")
    add("\t\t\tproductType = \"com.apple.product-type.application\";")
    add("\t\t};")
    add(f'\t\t{uitest_target_id} /* ProximityUITests */ = {{')
    add("\t\t\tisa = PBXNativeTarget;")
    add(f"\t\t\tbuildConfigurationList = {uitest_config_list_id} /* Build configuration list for PBXNativeTarget \\\"ProximityUITests\\\" */;")
    add("\t\t\tbuildPhases = (")
    add(f"\t\t\t\t{uitest_sources_phase_id} /* Sources */,")
    add(f"\t\t\t\t{uitest_frameworks_phase_id} /* Frameworks */,")
    add(f"\t\t\t\t{uitest_resources_phase_id} /* Resources */,")
    add("\t\t\t);")
    add("\t\t\tbuildRules = (")
    add("\t\t\t);")
    add("\t\t\tdependencies = (")
    add(f"\t\t\t\t{app_target_dep_id} /* PBXTargetDependency */,")
    add("\t\t\t);")
    add("\t\t\tname = ProximityUITests;")
    add("\t\t\tproductName = ProximityUITests;")
    add(f"\t\t\tproductReference = {uitest_product_id} /* ProximityUITests.xctest */;")
    add("\t\t\tproductType = \"com.apple.product-type.bundle.ui-testing\";")
    add("\t\t};")
    add("\t\t/* End PBXNativeTarget section */")

    # ---------------- PBXProject ----------------
    add("\t\t/* Begin PBXProject section */")
    add(f'\t\t{proj_id} /* Project object */ = {{')
    add("\t\t\tisa = PBXProject;")
    add("\t\t\tattributes = {")
    add("\t\t\t\tBuildIndependentTargetsInParallel = 1;")
    add("\t\t\t\tLastSwiftUpdateCheck = 1600;")
    add("\t\t\t\tLastUpgradeCheck = 1600;")
    add("\t\t\t\tTargetAttributes = {")
    add(f"\t\t\t\t\t{app_target_id} = {{")
    add("\t\t\t\t\t\tCreatedOnToolsVersion = 16.0;")
    add("\t\t\t\t\t};")
    add(f"\t\t\t\t\t{uitest_target_id} = {{")
    add("\t\t\t\t\t\tCreatedOnToolsVersion = 16.0;")
    add(f"\t\t\t\t\t\tTestTargetID = {app_target_id};")
    add("\t\t\t\t\t};")
    add("\t\t\t\t};")
    add("\t\t\t};")
    add(f"\t\t\tbuildConfigurationList = {proj_config_list_id} /* Build configuration list for PBXProject \\\"Proximity\\\" */;")
    add("\t\t\tcompatibilityVersion = \"Xcode 15.0\";")
    add("\t\t\tdevelopmentRegion = en;")
    add("\t\t\thasScannedForEncodings = 0;")
    add("\t\t\tknownRegions = (")
    add("\t\t\t\ten,")
    add("\t\t\t\tBase,")
    add("\t\t\t);")
    add(f"\t\t\tmainGroup = {main_group_id} /* main group */;")
    add(f"\t\t\tproductRefGroup = {products_group_id} /* Products */;")
    add("\t\t\tprojectDirPath = \"\";")
    add("\t\t\tprojectRoot = \"\";")
    add("\t\t\ttargets = (")
    add(f"\t\t\t\t{app_target_id} /* Proximity */,")
    add(f"\t\t\t\t{uitest_target_id} /* ProximityUITests */,")
    add("\t\t\t);")
    add("\t\t};")
    add("\t\t/* End PBXProject section */")

    # ---------------- PBXResourcesBuildPhase ----------------
    add("\t\t/* Begin PBXResourcesBuildPhase section */")
    add(f'\t\t{resources_build_phase_id} /* Resources */ = {{')
    add("\t\t\tisa = PBXResourcesBuildPhase;")
    add("\t\t\tbuildActionMask = 2147483647;")
    add("\t\t\tfiles = (")
    add("\t\t\t);")
    add("\t\t\trunOnlyForDeploymentPostprocessing = 0;")
    add("\t\t};")
    add(f'\t\t{uitest_resources_phase_id} /* Resources */ = {{')
    add("\t\t\tisa = PBXResourcesBuildPhase;")
    add("\t\t\tbuildActionMask = 2147483647;")
    add("\t\t\tfiles = (")
    add("\t\t\t);")
    add("\t\t\trunOnlyForDeploymentPostprocessing = 0;")
    add("\t\t};")
    add("\t\t/* End PBXResourcesBuildPhase section */")

    # ---------------- PBXSourcesBuildPhase ----------------
    add("\t\t/* Begin PBXSourcesBuildPhase section */")
    add(f'\t\t{sources_build_phase_id} /* Sources */ = {{')
    add("\t\t\tisa = PBXSourcesBuildPhase;")
    add("\t\t\tbuildActionMask = 2147483647;")
    add("\t\t\tfiles = (")
    for src in app_sources:
        add(f"\t\t\t\t{app_build_files[src]} /* {os.path.basename(src)} in Sources */,")
    add("\t\t\t);")
    add("\t\t\trunOnlyForDeploymentPostprocessing = 0;")
    add("\t\t};")
    add(f'\t\t{uitest_sources_phase_id} /* Sources */ = {{')
    add("\t\t\tisa = PBXSourcesBuildPhase;")
    add("\t\t\tbuildActionMask = 2147483647;")
    add("\t\t\tfiles = (")
    for src in uitest_sources:
        add(f"\t\t\t\t{uitest_build_files[src]} /* {os.path.basename(src)} in Sources */,")
    add("\t\t\t);")
    add("\t\t\trunOnlyForDeploymentPostprocessing = 0;")
    add("\t\t};")
    add("\t\t/* End PBXSourcesBuildPhase section */")

    # ---------------- PBXTargetDependency ----------------
    add("\t\t/* Begin PBXTargetDependency section */")
    add(f'\t\t{app_target_dep_id} /* PBXTargetDependency */ = {{')
    add("\t\t\tisa = PBXTargetDependency;")
    add(f"\t\t\ttarget = {app_target_id} /* Proximity */;")
    add(f"\t\t\ttargetProxy = {container_proxy_id} /* PBXContainerItemProxy */;")
    add("\t\t};")
    add("\t\t/* End PBXTargetDependency section */")

    # ---------------- XCBuildConfiguration (targets) ----------------
    add("\t\t/* Begin XCBuildConfiguration section */")
    # App Debug
    add(f'\t\t{app_debug_id} /* Debug */ = {{')
    add("\t\t\tisa = XCBuildConfiguration;")
    add("\t\t\tbuildSettings = {")
    add("\t\t\t\tASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;")
    add("\t\t\t\tCODE_SIGN_STYLE = Automatic;")
    add("\t\t\t\tCURRENT_PROJECT_VERSION = 1;")
    add("\t\t\t\tDEVELOPMENT_TEAM = \"\";")
    add("\t\t\t\tENABLE_PREVIEWS = YES;")
    add("\t\t\t\tGENERATE_INFOPLIST_FILE = YES;")
    add("\t\t\t\tINFOPLIST_KEY_CFBundleDisplayName = Proximity;")
    add("\t\t\t\tINFOPLIST_KEY_NFCReaderUsageDescription = \"Proximity uses NFC to connect when you tap phones.\";")
    add("\t\t\t\tINFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = \"Proximity uses Bluetooth to detect nearby friends.\";")
    add("\t\t\t\tINFOPLIST_KEY_NSLocationWhenInUseUsageDescription = \"Proximity uses your location to find people nearby.\";")
    add("\t\t\t\tINFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;")
    add("\t\t\t\tINFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;")
    add("\t\t\t\tINFOPLIST_KEY_UILaunchScreen_Generation = YES;")
    add("\t\t\t\tINFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = \"UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight\";")
    add("\t\t\t\tINFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = \"UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight\";")
    add("\t\t\t\tIPHONEOS_DEPLOYMENT_TARGET = 17.0;")
    add("\t\t\t\tLD_RUNPATH_SEARCH_PATHS = (")
    add("\t\t\t\t\t\"$(inherited)\",")
    add("\t\t\t\t\t\"@executable_path/Frameworks\",")
    add("\t\t\t\t);")
    add("\t\t\t\tMARKETING_VERSION = 1.0;")
    add("\t\t\t\tPRODUCT_BUNDLE_IDENTIFIER = com.proximity.app;")
    add("\t\t\t\tPRODUCT_NAME = \"$(TARGET_NAME)\";")
    add("\t\t\t\tSDKROOT = iphoneos;")
    add("\t\t\t\tSWIFT_EMIT_LOC_STRINGS = YES;")
    add("\t\t\t\tSWIFT_VERSION = 5.0;")
    add("\t\t\t\tTARGETED_DEVICE_FAMILY = \"1,2\";")
    add("\t\t\t};")
    add("\t\t\tname = Debug;")
    add("\t\t};")
    # App Release
    add(f'\t\t{app_release_id} /* Release */ = {{')
    add("\t\t\tisa = XCBuildConfiguration;")
    add("\t\t\tbuildSettings = {")
    add("\t\t\t\tASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;")
    add("\t\t\t\tCODE_SIGN_STYLE = Automatic;")
    add("\t\t\t\tCURRENT_PROJECT_VERSION = 1;")
    add("\t\t\t\tDEVELOPMENT_TEAM = \"\";")
    add("\t\t\t\tENABLE_PREVIEWS = YES;")
    add("\t\t\t\tGENERATE_INFOPLIST_FILE = YES;")
    add("\t\t\t\tINFOPLIST_KEY_CFBundleDisplayName = Proximity;")
    add("\t\t\t\tINFOPLIST_KEY_NFCReaderUsageDescription = \"Proximity uses NFC to connect when you tap phones.\";")
    add("\t\t\t\tINFOPLIST_KEY_NSBluetoothAlwaysUsageDescription = \"Proximity uses Bluetooth to detect nearby friends.\";")
    add("\t\t\t\tINFOPLIST_KEY_NSLocationWhenInUseUsageDescription = \"Proximity uses your location to find people nearby.\";")
    add("\t\t\t\tINFOPLIST_KEY_UIApplicationSceneManifest_Generation = YES;")
    add("\t\t\t\tINFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;")
    add("\t\t\t\tINFOPLIST_KEY_UILaunchScreen_Generation = YES;")
    add("\t\t\t\tINFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = \"UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight\";")
    add("\t\t\t\tINFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = \"UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight\";")
    add("\t\t\t\tIPHONEOS_DEPLOYMENT_TARGET = 17.0;")
    add("\t\t\t\tLD_RUNPATH_SEARCH_PATHS = (")
    add("\t\t\t\t\t\"$(inherited)\",")
    add("\t\t\t\t\t\"@executable_path/Frameworks\",")
    add("\t\t\t\t);")
    add("\t\t\t\tMARKETING_VERSION = 1.0;")
    add("\t\t\t\tPRODUCT_BUNDLE_IDENTIFIER = com.proximity.app;")
    add("\t\t\t\tPRODUCT_NAME = \"$(TARGET_NAME)\";")
    add("\t\t\t\tSDKROOT = iphoneos;")
    add("\t\t\t\tSWIFT_EMIT_LOC_STRINGS = YES;")
    add("\t\t\t\tSWIFT_VERSION = 5.0;")
    add("\t\t\t\tTARGETED_DEVICE_FAMILY = \"1,2\";")
    add("\t\t\t};")
    add("\t\t\tname = Release;")
    add("\t\t};")
    # UITest Debug
    add(f'\t\t{uitest_debug_id} /* Debug */ = {{')
    add("\t\t\tisa = XCBuildConfiguration;")
    add("\t\t\tbuildSettings = {")
    add("\t\t\t\tCODE_SIGN_STYLE = Automatic;")
    add("\t\t\t\tCURRENT_PROJECT_VERSION = 1;")
    add("\t\t\t\tGENERATE_INFOPLIST_FILE = YES;")
    add("\t\t\t\tIPHONEOS_DEPLOYMENT_TARGET = 17.0;")
    add("\t\t\t\tMARKETING_VERSION = 1.0;")
    add("\t\t\t\tPRODUCT_BUNDLE_IDENTIFIER = com.proximity.app.ProximityUITests;")
    add("\t\t\t\tPRODUCT_NAME = \"$(TARGET_NAME)\";")
    add("\t\t\t\tSWIFT_EMIT_LOC_STRINGS = NO;")
    add("\t\t\t\tSWIFT_VERSION = 5.0;")
    add("\t\t\t\tTARGETED_DEVICE_FAMILY = \"1,2\";")
    add("\t\t\t\tTEST_TARGET_NAME = Proximity;")
    add("\t\t\t};")
    add("\t\t\tname = Debug;")
    add("\t\t};")
    # UITest Release
    add(f'\t\t{uitest_release_id} /* Release */ = {{')
    add("\t\t\tisa = XCBuildConfiguration;")
    add("\t\t\tbuildSettings = {")
    add("\t\t\t\tCODE_SIGN_STYLE = Automatic;")
    add("\t\t\t\tCURRENT_PROJECT_VERSION = 1;")
    add("\t\t\t\tGENERATE_INFOPLIST_FILE = YES;")
    add("\t\t\t\tIPHONEOS_DEPLOYMENT_TARGET = 17.0;")
    add("\t\t\t\tMARKETING_VERSION = 1.0;")
    add("\t\t\t\tPRODUCT_BUNDLE_IDENTIFIER = com.proximity.app.ProximityUITests;")
    add("\t\t\t\tPRODUCT_NAME = \"$(TARGET_NAME)\";")
    add("\t\t\t\tSWIFT_EMIT_LOC_STRINGS = NO;")
    add("\t\t\t\tSWIFT_VERSION = 5.0;")
    add("\t\t\t\tTARGETED_DEVICE_FAMILY = \"1,2\";")
    add("\t\t\t\tTEST_TARGET_NAME = Proximity;")
    add("\t\t\t};")
    add("\t\t\tname = Release;")
    add("\t\t};")
    # Project Debug
    add(f'\t\t{proj_debug_id} /* Debug */ = {{')
    add("\t\t\tisa = XCBuildConfiguration;")
    add("\t\t\tbuildSettings = {")
    add("\t\t\t\tALWAYS_SEARCH_USER_PATHS = NO;")
    add("\t\t\t\tCLANG_ANALYZER_NONNULL = YES;")
    add("\t\t\t\tCLANG_ENABLE_MODULES = YES;")
    add("\t\t\t\tCLANG_ENABLE_OBJC_ARC = YES;")
    add("\t\t\t\tCLANG_WARN_BOOL_CONVERSION = YES;")
    add("\t\t\t\tCLANG_WARN_EMPTY_BODY = YES;")
    add("\t\t\t\tCLANG_WARN_UNREACHABLE_CODE = YES;")
    add("\t\t\t\tCOPY_PHASE_STRIP = NO;")
    add("\t\t\t\tDEBUG_INFORMATION_FORMAT = dwarf;")
    add("\t\t\t\tENABLE_STRICT_OBJC_MSGSEND = YES;")
    add("\t\t\t\tENABLE_TESTABILITY = YES;")
    add("\t\t\t\tGCC_C_LANGUAGE_STANDARD = gnu17;")
    add("\t\t\t\tGCC_DYNAMIC_NO_PIC = NO;")
    add("\t\t\t\tGCC_NO_COMMON_BLOCKS = YES;")
    add("\t\t\t\tGCC_OPTIMIZATION_LEVEL = 0;")
    add("\t\t\t\tGCC_PREPROCESSOR_DEFINITIONS = (")
    add("\t\t\t\t\t\"DEBUG=1\",")
    add("\t\t\t\t\t\"$(inherited)\",")
    add("\t\t\t\t);")
    add("\t\t\t\tIPHONEOS_DEPLOYMENT_TARGET = 17.0;")
    add("\t\t\t\tMTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;")
    add("\t\t\t\tMTL_FAST_MATH = YES;")
    add("\t\t\t\tONLY_ACTIVE_ARCH = YES;")
    add("\t\t\t\tSDKROOT = iphoneos;")
    add("\t\t\t\tSWIFT_ACTIVE_COMPILATION_CONDITIONS = \"DEBUG $(inherited)\";")
    add("\t\t\t\tSWIFT_OPTIMIZATION_LEVEL = \"-Onone\";")
    add("\t\t\t};")
    add("\t\t\tname = Debug;")
    add("\t\t};")
    # Project Release
    add(f'\t\t{proj_release_id} /* Release */ = {{')
    add("\t\t\tisa = XCBuildConfiguration;")
    add("\t\t\tbuildSettings = {")
    add("\t\t\t\tALWAYS_SEARCH_USER_PATHS = NO;")
    add("\t\t\t\tCLANG_ANALYZER_NONNULL = YES;")
    add("\t\t\t\tCLANG_ENABLE_MODULES = YES;")
    add("\t\t\t\tCLANG_ENABLE_OBJC_ARC = YES;")
    add("\t\t\t\tCLANG_WARN_BOOL_CONVERSION = YES;")
    add("\t\t\t\tCLANG_WARN_EMPTY_BODY = YES;")
    add("\t\t\t\tCLANG_WARN_UNREACHABLE_CODE = YES;")
    add("\t\t\t\tCOPY_PHASE_STRIP = NO;")
    add("\t\t\t\tDEBUG_INFORMATION_FORMAT = \"dwarf-with-dsym\";")
    add("\t\t\t\tENABLE_NS_ASSERTIONS = NO;")
    add("\t\t\t\tENABLE_STRICT_OBJC_MSGSEND = YES;")
    add("\t\t\t\tGCC_C_LANGUAGE_STANDARD = gnu17;")
    add("\t\t\t\tGCC_NO_COMMON_BLOCKS = YES;")
    add("\t\t\t\tIPHONEOS_DEPLOYMENT_TARGET = 17.0;")
    add("\t\t\t\tMTL_ENABLE_DEBUG_INFO = NO;")
    add("\t\t\t\tMTL_FAST_MATH = YES;")
    add("\t\t\t\tSDKROOT = iphoneos;")
    add("\t\t\t\tSWIFT_COMPILATION_MODE = wholemodule;")
    add("\t\t\t\tVALIDATE_PRODUCT = YES;")
    add("\t\t\t};")
    add("\t\t\tname = Release;")
    add("\t\t};")
    add("\t\t/* End XCBuildConfiguration section */")

    # ---------------- XCConfigurationList ----------------
    add("\t\t/* Begin XCConfigurationList section */")
    add(f'\t\t{app_config_list_id} /* Build configuration list for PBXNativeTarget \\\"Proximity\\\" */ = {{')
    add("\t\t\tisa = XCConfigurationList;")
    add("\t\t\tbuildConfigurations = (")
    add(f"\t\t\t\t{app_debug_id} /* Debug */,")
    add(f"\t\t\t\t{app_release_id} /* Release */,")
    add("\t\t\t);")
    add("\t\t\tdefaultConfigurationIsVisible = 0;")
    add("\t\t\tdefaultConfigurationName = Release;")
    add("\t\t};")
    add(f'\t\t{uitest_config_list_id} /* Build configuration list for PBXNativeTarget \\\"ProximityUITests\\\" */ = {{')
    add("\t\t\tisa = XCConfigurationList;")
    add("\t\t\tbuildConfigurations = (")
    add(f"\t\t\t\t{uitest_debug_id} /* Debug */,")
    add(f"\t\t\t\t{uitest_release_id} /* Release */,")
    add("\t\t\t);")
    add("\t\t\tdefaultConfigurationIsVisible = 0;")
    add("\t\t\tdefaultConfigurationName = Release;")
    add("\t\t};")
    add(f'\t\t{proj_config_list_id} /* Build configuration list for PBXProject \\\"Proximity\\\" */ = {{')
    add("\t\t\tisa = XCConfigurationList;")
    add("\t\t\tbuildConfigurations = (")
    add(f"\t\t\t\t{proj_debug_id} /* Debug */,")
    add(f"\t\t\t\t{proj_release_id} /* Release */,")
    add("\t\t\t);")
    add("\t\t\tdefaultConfigurationIsVisible = 0;")
    add("\t\t\tdefaultConfigurationName = Release;")
    add("\t\t};")
    add("\t\t/* End XCConfigurationList section */")

    add("\t};")
    add(f"\trootObject = {proj_id} /* Project object */;")
    add("}")

    return "\n".join(lines) + "\n"

# ---------------------------------------------------------------------------
# Write scheme so `xcodebuild test` works
# ---------------------------------------------------------------------------
def write_scheme():
    app_target_id = stable_id("target:Proximity")
    uitest_target_id = stable_id("target:ProximityUITests")

    scheme_dir = os.path.join(OUT_DIR, "xcshareddata", "xcschemes")
    os.makedirs(scheme_dir, exist_ok=True)
    scheme_path = os.path.join(scheme_dir, "Proximity.xcscheme")
    scheme = f'''<?xml version="1.0" encoding="UTF-8"?>
<Scheme
   LastUpgradeVersion = "1600"
   version = "1.7">
   <BuildAction
      parallelizeBuildables = "YES"
      buildImplicitDependencies = "YES">
      <BuildActionEntries>
         <BuildActionEntry
            buildForTesting = "YES"
            buildForRunning = "YES"
            buildForProfiling = "YES"
            buildForArchiving = "YES"
            buildForAnalyzing = "YES">
            <BuildableReference
               BuildableIdentifier = "primary"
               BlueprintIdentifier = "{app_target_id}"
               BuildableName = "Proximity.app"
               BlueprintName = "Proximity"
               ReferencedContainer = "container:Proximity.xcodeproj">
            </BuildableReference>
         </BuildActionEntry>
      </BuildActionEntries>
   </BuildAction>
   <TestAction
      buildConfiguration = "Debug"
      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
      shouldUseLaunchSchemeArgsEnv = "YES"
      shouldAutocreateTestPlan = "YES">
      <Testables>
         <TestableReference
            skipped = "NO">
            <BuildableReference
               BuildableIdentifier = "primary"
               BlueprintIdentifier = "{uitest_target_id}"
               BuildableName = "ProximityUITests.xctest"
               BlueprintName = "ProximityUITests"
               ReferencedContainer = "container:Proximity.xcodeproj">
            </BuildableReference>
         </TestableReference>
      </Testables>
   </TestAction>
   <LaunchAction
      buildConfiguration = "Debug"
      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
      launchStyle = "0"
      useCustomWorkingDirectory = "NO"
      ignoresPersistentStateOnLaunch = "NO"
      debugDocumentVersioning = "YES"
      debugServiceExtension = "internal"
      allowLocationSimulation = "YES">
      <BuildableProductRunnable
         runnableDebuggingMode = "0">
         <BuildableReference
            BuildableIdentifier = "primary"
            BlueprintIdentifier = "{app_target_id}"
            BuildableName = "Proximity.app"
            BlueprintName = "Proximity"
            ReferencedContainer = "container:Proximity.xcodeproj">
         </BuildableReference>
      </BuildableProductRunnable>
   </LaunchAction>
   <ProfileAction
      buildConfiguration = "Release"
      shouldUseLaunchSchemeArgsEnv = "YES"
      savedToolIdentifier = ""
      useCustomWorkingDirectory = "NO"
      debugDocumentVersioning = "YES">
      <BuildableProductRunnable
         runnableDebuggingMode = "0">
         <BuildableReference
            BuildableIdentifier = "primary"
            BlueprintIdentifier = "{app_target_id}"
            BuildableName = "Proximity.app"
            BlueprintName = "Proximity"
            ReferencedContainer = "container:Proximity.xcodeproj">
         </BuildableReference>
      </BuildableProductRunnable>
   </ProfileAction>
   <AnalyzeAction
      buildConfiguration = "Debug">
   </AnalyzeAction>
   <ArchiveAction
      buildConfiguration = "Release"
      revealArchiveInOrganizer = "YES">
   </ArchiveAction>
</Scheme>
'''
    with open(scheme_path, "w") as f:
        f.write(scheme)

# ---------------------------------------------------------------------------
def main():
    os.makedirs(OUT_DIR, exist_ok=True)
    pbx = build()
    with open(os.path.join(OUT_DIR, "project.pbxproj"), "w") as f:
        f.write(pbx)
    write_scheme()
    print(f"Generated {OUT_DIR}")
    print(f"  app sources:     {len(app_sources)}")
    print(f"  uitest sources:  {len(uitest_sources)}")

if __name__ == "__main__":
    main()