#!/usr/bin/env python3
"""
Replaces old-style PBXGroup+PBXFileReference approach for Shared/ with
PBXFileSystemSynchronizedRootGroup (the Xcode 16 native approach).

Steps:
  1. Remove explicit build file entries for all 5 shared files from both build phases
  2. Remove explicit PBXBuildFile entries
  3. Remove explicit PBXFileReference entries
  4. Remove PBXGroup entries for Shared/Models/Utilities
  5. Add a PBXFileSystemSynchronizedRootGroup for Shared/
  6. Add it to both targets' fileSystemSynchronizedGroups lists

Run from project root: python3 scripts/update_pbxproj.py
"""
import re
import secrets

PROJ = "Solverv.xcodeproj/project.pbxproj"

def uid():
    return secrets.token_hex(12).upper()

with open(PROJ) as f:
    src = f.read()

# ── UUIDs to remove (explicit PBXBuildFile entries) ──
# Two per file: (main_app_uid, widget_uid)
build_file_uids = [
    ("A4D1E5F62BE4C16BF9C35920", "BDE41CA8E12EF58194F0FB28"),  # Season.swift
    ("0602B5968563FDCC6AAE214B", "C1829841EA43782BD52878E9"),  # SolsticeEvent.swift
    ("58EC7B50BC5232D031299280", "DB32B658D259B49C522786C8"),  # SolsticeData.swift
    ("63374A5CD6AAFBBA4A5E87AC", "6FFB4853DA8AF00282F20F96"),  # AppGroupManager.swift
    ("594A94559E2251F892BC158B", "90AEA7599D196072837AE994"),  # SunTimes.swift
]

# PBXFileReference UUIDs to remove
file_ref_uids = [
    "BAAD0F6249013EFDE6CF3BDB",  # Season.swift
    "A53B1F64353769F3F3D52DCC",  # SolsticeEvent.swift
    "56A3A45E5A25BDBCC47A23EC",  # SolsticeData.swift
    "3B12784AD1DE5013F9E3B677",  # AppGroupManager.swift
    "5C4C2D0816DA7D3E6E6A4358",  # SunTimes.swift
]

# PBXGroup UUIDs to remove
group_uids = [
    "0BFB6DC6E4F437012CF2990E",  # Models
    "5F48ADA595F6B3DE3DFE2A32",  # Utilities
    "0EEEC5869B3AB7A2A2154C10",  # Shared
]

# ── 1. Remove explicit entries from both PBXSourcesBuildPhase sections ──
all_build_uids = [u for pair in build_file_uids for u in pair]
for bu in all_build_uids:
    src = re.sub(r'\t{3,4}' + bu + r'\s*/\*[^*]*\*/,\n', '', src)

# ── 2. Remove PBXBuildFile entries ──
for bu in all_build_uids:
    src = re.sub(r'\t\t' + bu + r'\s*/\*[^*]*\*/\s*=\s*\{[^}]*\};\n', '', src)

# ── 3. Remove PBXFileReference entries ──
for ru in file_ref_uids:
    src = re.sub(r'\t\t' + ru + r'\s*/\*[^*]*\*/\s*=\s*\{[^}]*\};\n', '', src)

# ── 4. Remove PBXGroup entries for Shared/Models/Utilities ──
# These span multiple lines so we need a multi-line match
for gu in group_uids:
    src = re.sub(r'\t\t' + gu + r'\s*/\*[^*]*\*/\s*=\s*\{[^}]*\};\n', '', src, flags=re.DOTALL)

# ── 5. Remove Shared group from main project group children ──
src = re.sub(r'\t{3,4}0EEEC5869B3AB7A2A2154C10\s*/\*[^*]*\*/,\n', '', src)

# ── 6. Add PBXFileSystemSynchronizedRootGroup for Shared/ ──
shared_sync_uid = uid()

new_sync_group = (
    f'\t\t{shared_sync_uid} /* Shared */ = {{\n'
    f'\t\t\tisa = PBXFileSystemSynchronizedRootGroup;\n'
    f'\t\t\tpath = Shared;\n'
    f'\t\t\tsourceTree = "<group>";\n'
    f'\t\t}};\n'
)

src = src.replace(
    "/* Begin PBXFileSystemSynchronizedRootGroup section */",
    "/* Begin PBXFileSystemSynchronizedRootGroup section */\n" + new_sync_group,
    1
)

# ── 7. Add shared_sync_uid to both targets' fileSystemSynchronizedGroups ──
# Main app target: 1B8629BE2EF0C636005A1C75
# Widget target:   1B8629D22EF0C656005A1C75

for target_uid, existing_sync in [
    ("1B8629BE2EF0C636005A1C75", "1B8629C12EF0C636005A1C75"),   # Solverv → Solverv group
    ("1B8629D22EF0C656005A1C75", "1B8629D92EF0C656005A1C75"),   # Widget → Solsnu.Widget group
]:
    src = src.replace(
        f'\t\t\t\t{existing_sync} /* ',
        f'\t\t\t\t{shared_sync_uid} /* Shared */,\n\t\t\t\t{existing_sync} /* ',
        1
    )

with open(PROJ, "w") as f:
    f.write(src)

print(f"Done. New Shared synchronized root group UID: {shared_sync_uid}")
print("Run: plutil -lint Solverv.xcodeproj/project.pbxproj")