# Released under the MIT License. See LICENSE for details.
#
"""Tools related to ios development."""

from __future__ import annotations

import pathlib
import subprocess
import sys
from dataclasses import dataclass

from efrotools import getprojectconfig, getlocalconfig

MODES = {
    'debug': {'configuration': 'Debug'},
    'release': {'configuration': 'Release'},
}


@dataclass
class Config:
    """Configuration values for this project."""

    # Project relative xcodeproj path ('MyAppName/MyAppName.xcodeproj').
    projectpath: str

    # App bundle name ('MyAppName.app').
    app_bundle_name: str

    # Base name of the ipa archive to be pushed ('myappname').
    archive_name: str

    # Scheme to build ('MyAppName iOS').
    scheme: str


@dataclass
class LocalConfig:
    """Configuration values specific to the machine."""

    # Sftp host ('myuserid@myserver.com').
    sftp_host: str

    # Path to push ipa to ('/home/myhome/dir/where/i/want/this/).
    sftp_dir: str


def push_ipa(
    root: pathlib.Path, modename: str, signing_config: str | None
) -> None:
    """Construct ios IPA and push it to staging server for device testing.

    This takes some shortcuts to minimize turnaround time;
    It doesn't recreate the ipa completely each run, uses rsync
    for speedy pushes to the staging server, etc.
    The use case for this is quick build iteration on a device
    that is not physically near the build machine.
    """
    from efrotools.xcodebuild import project_build_path

    # Load both the local and project config data.
    # FIXME: switch this to use dataclassio.
    cfg = Config(**getprojectconfig(root)['push_ipa_config'])
    lcfg = LocalConfig(**getlocalconfig(root)['push_ipa_local_config'])

    if modename not in MODES:
        raise RuntimeError(f'invalid mode: "{modename}"')
    mode = MODES[modename]

    xcprojpath = pathlib.Path(root, cfg.projectpath)
    app_dir = project_build_path(
        projroot=str(root),
        project_path=str(xcprojpath),
        scheme='BallisticaKit iOS Legacy',
        configuration=mode['configuration'],
        executable=False,
    )
    built_app_path = pathlib.Path(app_dir, cfg.app_bundle_name)

    workdir = pathlib.Path(root, 'build', 'push_ipa')
    workdir.mkdir(parents=True, exist_ok=True)

    pathlib.Path(root, 'build').mkdir(parents=True, exist_ok=True)
    exportoptionspath = pathlib.Path(root, workdir, 'exportoptions.plist')
    ipa_dir_path = pathlib.Path(root, workdir, 'ipa')
    ipa_dir_path.mkdir(parents=True, exist_ok=True)

    # Inject our latest build into an existing xcarchive (creating if needed).
    archivepath = _add_build_to_xcarchive(
        workdir, xcprojpath, built_app_path, cfg, signing_config
    )

    # Export an IPA from said xcarchive.
    ipa_path = _export_ipa_from_xcarchive(
        archivepath, exportoptionspath, ipa_dir_path, cfg, signing_config
    )

    # And lastly sync said IPA up to our staging server.
    print('Pushing to staging server...')
    sys.stdout.flush()
    subprocess.run(
        [
            'rsync',
            '--verbose',
            ipa_path,
            '-e',
            'ssh -oBatchMode=yes -oStrictHostKeyChecking=yes',
            f'{lcfg.sftp_host}:{lcfg.sftp_dir}',
        ],
        check=True,
    )

    print('iOS Package Updated Successfully!')


def _add_build_to_xcarchive(
    workdir: pathlib.Path,
    xcprojpath: pathlib.Path,
    built_app_path: pathlib.Path,
    cfg: Config,
    signing_config: str | None,
) -> pathlib.Path:
    archivepathbase = pathlib.Path(workdir, cfg.archive_name)
    archivepath = pathlib.Path(workdir, cfg.archive_name + '.xcarchive')

    # Rebuild a full archive if one doesn't exist.
    if not archivepath.exists():
        print('Base archive not found; doing full build (can take a while)...')
        sys.stdout.flush()
        args = [
            'tools/pcommand',
            'xcodebuild',
            'archive',
            '-project',
            str(xcprojpath),
            '-scheme',
            cfg.scheme,
            '-configuration',
            MODES['debug']['configuration'],
            '-archivePath',
            str(archivepathbase),
            '-allowProvisioningUpdates',
        ]
        if signing_config is not None:
            args += ['-signingconfig', signing_config]

        subprocess.run(args, check=True, capture_output=False)

    # Now copy our just-built app into the archive.
    print('Copying build to archive...')
    sys.stdout.flush()
    archive_app_path = pathlib.Path(
        archivepath, 'Products/Applications/' + cfg.app_bundle_name
    )
    subprocess.run(['rm', '-rf', archive_app_path], check=True)
    subprocess.run(['cp', '-r', built_app_path, archive_app_path], check=True)
    return archivepath


def _export_ipa_from_xcarchive(
    archivepath: pathlib.Path,
    exportoptionspath: pathlib.Path,
    ipa_dir_path: pathlib.Path,
    cfg: Config,
    signing_config: str | None,
) -> pathlib.Path:
    import textwrap

    print('Exporting IPA...')
    exportoptions = textwrap.dedent(
        """
        <?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
         "https://www.apple.com/DTDs/PropertyList-1.0.dtd">
        <plist version="1.0">
        <dict>
                <key>compileBitcode</key>
                <false/>
                <key>destination</key>
                <string>export</string>
                <key>method</key>
                <string>development</string>
                <key>signingStyle</key>
                <string>automatic</string>
                <key>stripSwiftSymbols</key>
                <true/>
                <key>teamID</key>
                <string>G7TQB7SM63</string>
                <key>thinning</key>
                <string>&lt;none&gt;</string>
        </dict>
        </plist>
    """
    ).strip()
    with exportoptionspath.open('w') as outfile:
        outfile.write(exportoptions)

    sys.stdout.flush()
    args = [
        'tools/pcommand',
        'xcodebuild',
        '-allowProvisioningUpdates',
        '-exportArchive',
        '-archivePath',
        str(archivepath),
        '-exportOptionsPlist',
        str(exportoptionspath),
        '-exportPath',
        str(ipa_dir_path),
    ]
    if signing_config is not None:
        args += ['-signingconfig', signing_config]
    try:
        subprocess.run(args, check=True, capture_output=True)
    except Exception:
        print(
            'Error exporting code-signed archive; '
            ' perhaps try running "security unlock-keychain login.keychain"'
        )
        raise

    ipa_path_exported = pathlib.Path(ipa_dir_path, cfg.scheme + '.ipa')
    ipa_path = pathlib.Path(ipa_dir_path, cfg.archive_name + '.ipa')
    subprocess.run(['mv', ipa_path_exported, ipa_path], check=True)
    return ipa_path