"""服务端自带的 iOS 工程配置替换逻辑。"""
import plistlib
import re
import shutil
from pathlib import Path


class ProjectPatchError(Exception):
    """工程配置无法完整写入。"""


def _replace_lines(path: Path, keyword: str, replacement: str) -> int:
    if not path.exists():
        raise ProjectPatchError(f"配置文件不存在: {path.relative_to(path.parent.parent)}")

    lines = path.read_text(encoding="utf-8").splitlines(keepends=True)
    count = 0
    result = []
    for line in lines:
        if keyword in line and not line.lstrip().startswith("//"):
            result.append(f"{replacement}\n")
            count += 1
        else:
            result.append(line)
    path.write_text("".join(result), encoding="utf-8")
    return count


def _update_plist(path: Path, config: dict):
    if not path.exists():
        raise ProjectPatchError(f"Info.plist 不存在: {path}")

    with path.open("rb") as f:
        plist = plistlib.load(f)

    plist["CFBundleDisplayName"] = config.get("APPID_NAME", "")
    plist["AlivcLicenseKey"] = config.get("AlivcLicenseKey", "") or ""
    scheme = (config.get("BUNDLE_ID", "") or "").replace(".", "").lower()
    values = {
        "weixinlogin": config.get("weixinlogin", ""),
        "wechatpay": config.get("weixinpay", ""),
        "tencent": config.get("tencent", ""),
        "readoorUrlScheme": scheme,
    }
    url_types = []
    for item in plist.get("CFBundleURLTypes", []):
        name = item.get("CFBundleURLName")
        value = values.get(name)
        if name in values:
            if not value:
                continue
            item["CFBundleURLSchemes"] = [value]
        url_types.append(item)
    plist["CFBundleURLTypes"] = url_types

    with path.open("wb") as f:
        plistlib.dump(plist, f, fmt=plistlib.FMT_XML)


def _apply_theme(build_dir: Path, theme_dir: str, messages: list[str]):
    if not theme_dir:
        return
    source = Path(theme_dir)
    if not source.is_dir():
        raise ProjectPatchError(f"皮肤目录不存在: {source}")

    target_assets = build_dir / "readoor" / "BookShelf" / "Resources" / "Images.xcassets"
    for item in source.iterdir():
        if not item.is_dir():
            continue
        destination = target_assets / item.name
        if destination.exists():
            shutil.rmtree(destination)
        shutil.copytree(item, destination)
        messages.append(f"已替换皮肤资源: {destination.relative_to(build_dir)}")

    icon = source / "AppIcon.appiconset" / "icon-1024.png"
    logo = build_dir / "readoor" / "3.0" / "Resources" / "3.0.xcassets" / "AppLogo.imageset" / "icon-1024.png"
    if icon.exists() and logo.parent.exists():
        shutil.copy2(icon, logo)
        messages.append("已替换应用 Logo")

    license_file = source / "license.crt"
    license_target = build_dir / "readoor" / "3.0" / "Resources" / "license.crt"
    if license_file.exists() and license_target.parent.exists():
        shutil.copy2(license_file, license_target)
        messages.append("已替换渠道 License")


def _write_export_options(build_dir: Path, config: dict):
    if config.get("NO_CERT"):
        data = {
            "destination": "export",
            "method": "development" if config.get("BUILD_TYPE") == "Ad_Hoc" else "app-store-connect",
            "stripSwiftSymbols": True,
            "thinning": "<none>",
        }
    else:
        data = {
            "destination": "export",
            "method": "release-testing" if config.get("BUILD_TYPE") == "Ad_Hoc" else "app-store-connect",
            "teamID": config.get("TEAM_ID", ""),
            "provisioningProfiles": {config.get("BUNDLE_ID", ""): config.get("PROVISIONING_NAME", "")},
            "signingCertificate": config.get("CERTIFICATE", ""),
            "signingStyle": "manual",
            "stripSwiftSymbols": True,
            "thinning": "<none>",
        }
    with (build_dir / "exportOptions.plist").open("wb") as f:
        plistlib.dump(data, f)


def _apply_dictionary_config(build_dir: Path, config: dict, messages: list[str]):
    macro = build_dir / "readoor" / "BookShelf" / "Classes" / "Macro" / "STSConstantsMacro.h"
    if not macro.exists():
        raise ProjectPatchError(f"词典配置文件不存在: {macro}")
    content = macro.read_text(encoding="utf-8")
    version = config.get("VERSION", "")
    content, count = re.subn(
        r'^(#define\s+SOURCE_VERSION\s+)@"[^"]*"',
        rf'\1@"{version}"',
        content,
        flags=re.MULTILINE,
    )
    if count == 0:
        raise ProjectPatchError("未找到词典 SOURCE_VERSION 配置")
    macro.write_text(content, encoding="utf-8")
    messages.append("已替换词典版本配置")


def apply_project_config(build_dir: Path, config: dict) -> list[str]:
    """写入项目配置，返回适合实时日志展示的变更说明。"""
    messages: list[str] = []
    if config.get("SCHEME") == "readoorDict":
        _apply_dictionary_config(build_dir, config, messages)
        _write_export_options(build_dir, config)
        return messages

    project = build_dir / "readoor.xcodeproj" / "project.pbxproj"
    swift = build_dir / "readoor" / "3.0" / "AppConfig" / "RDAppConfiguration.swift"
    entitlements = build_dir / "readoor" / "3.0" / "readoor31.entitlements"
    plist = build_dir / "readoor" / "3.0" / "readoor31.plist"

    replacements = [
        (project, "MARKETING_VERSION =", f"\t\t\t\tMARKETING_VERSION = {config.get('VERSION', '')};"),
        (project, "CURRENT_PROJECT_VERSION =", f"\t\t\t\tCURRENT_PROJECT_VERSION = {config.get('BUILD_VERSION', '')};"),
        (swift, "let RD_APP_GUID: String =", f"let RD_APP_GUID: String = \"{config.get('APPID', '')}\""),
        (swift, "let RD_API_DOMAIN: String", f"let RD_API_DOMAIN: String = \"{config.get('API', '')}\""),
        (swift, "let RD_WECHAT_PAY_ID: String", f"let RD_WECHAT_PAY_ID: String = \"{config.get('weixinpay', '')}\""),
        (swift, "let RD_SOURCE_VERSION: String", f"let RD_SOURCE_VERSION: String = \"{config.get('VERSION', '')}\""),
        (entitlements, "<string>applinks:", f"\t<string>{config.get('ASSOCIATED_DOMAINS', '')}</string>"),
    ]
    if config.get("BUNDLE_ID"):
        replacements.append((project, "PRODUCT_BUNDLE_IDENTIFIER =", f"\t\t\t\tPRODUCT_BUNDLE_IDENTIFIER = {config['BUNDLE_ID']};"))
    if config.get("TEAM_ID"):
        replacements.extend([
            (project, "DEVELOPMENT_TEAM =", f"\t\t\t\tDEVELOPMENT_TEAM = {config['TEAM_ID']};"),
            (project, '"DEVELOPMENT_TEAM[sdk=iphoneos*]" =', f"\t\t\t\t\"DEVELOPMENT_TEAM[sdk=iphoneos*]\" = {config['TEAM_ID']};"),
        ])
    if config.get("PROVISIONING_NAME"):
        replacements.extend([
            (project, "PROVISIONING_PROFILE_SPECIFIER =", f"\t\t\t\tPROVISIONING_PROFILE_SPECIFIER = {config['PROVISIONING_NAME']};"),
            (project, '"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" =', f"\t\t\t\t\"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]\" = {config['PROVISIONING_NAME']};"),
        ])

    # 与 AutoPacking/replace_build_info.py 保持一致：工程内所有构建配置都使用
    # Distribution identity。只更新 exportOptions.plist 不足以覆盖 Archive 阶段，
    # 否则 pbxproj 中残留的 iPhone/iOS Developer 会让 Xcode 查找开发证书。
    replacements.extend([
        (project, "CODE_SIGN_IDENTITY =", '\t\t\t\tCODE_SIGN_IDENTITY = "iPhone Distribution";'),
        (project, '"CODE_SIGN_IDENTITY[sdk=iphoneos*]" =', '\t\t\t\t"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Distribution";'),
    ])

    missing = []
    for path, keyword, replacement in replacements:
        if _replace_lines(path, keyword, replacement) == 0:
            missing.append(keyword)
    if missing:
        raise ProjectPatchError(f"未找到待替换配置: {', '.join(missing)}")

    _update_plist(plist, config)
    _apply_theme(build_dir, config.get("THEME", ""), messages)
    _write_export_options(build_dir, config)
    messages.append("工程、签名、版本和分发配置已更新")
    return messages