#!/usr/bin/env python3
"""Append `## Навигация` sections with wikilinks to README.md files.

Links use full-path form `[[folder/file]]` to avoid basename collisions.
Idempotent — skips files that already have the marker.
"""
from pathlib import Path

VAULT = Path(__file__).resolve().parent.parent
MARK = "<!-- kb-auto-index -->"

def wl(rel_path: str) -> str:
    return f"[[{rel_path[:-3]}]]"

def list_md(folder: Path, exclude_readme=True):
    out = []
    for p in sorted(folder.glob("*.md")):
        if exclude_readme and p.name == "README.md":
            continue
        out.append(str(p.relative_to(VAULT)))
    return out

def list_md_recursive(folder: Path, exclude_readme=False):
    out = []
    for p in sorted(folder.rglob("*.md")):
        out.append(str(p.relative_to(VAULT)))
    return out

def append_index(readme_path: Path, links: list, title: str = "Навигация"):
    if not readme_path.is_file():
        print(f"MISSING: {readme_path}")
        return
    text = readme_path.read_text()
    if MARK in text:
        print(f"HAS-INDEX: {readme_path.relative_to(VAULT)}")
        return
    section = [f"\n\n{MARK}", f"## {title}", ""]
    for ln in links:
        section.append(f"- {wl(ln)}")
    new_text = text.rstrip() + "\n".join(section) + "\n"
    readme_path.write_text(new_text)
    print(f"FIXED: {readme_path.relative_to(VAULT)} (+{len(links)} links)")


# decisions/README.md → all decisions
append_index(
    VAULT / "decisions" / "README.md",
    list_md(VAULT / "decisions"),
)

# notes/README.md → top-level notes only (skip notes/claude/*)
notes_top = [str(p.relative_to(VAULT)) for p in sorted((VAULT / "notes").glob("*.md"))
             if p.name != "README.md"]
append_index(VAULT / "notes" / "README.md", notes_top)

# snippets/README.md → all snippets
append_index(
    VAULT / "snippets" / "README.md",
    list_md(VAULT / "snippets"),
)

# projects/dttb/README.md → all dttb children (incl. subfolder README)
dttb_children = []
for p in sorted((VAULT / "projects" / "dttb").glob("*.md")):
    if p.name != "README.md":
        dttb_children.append(str(p.relative_to(VAULT)))
# add subfolder README
nt_readme = VAULT / "projects" / "dttb" / "nextcloud-talk-bot" / "README.md"
if nt_readme.is_file():
    dttb_children.append(str(nt_readme.relative_to(VAULT)))
append_index(VAULT / "projects" / "dttb" / "README.md", dttb_children)

# projects/niikn/README.md → all niikn children
append_index(
    VAULT / "projects" / "niikn" / "README.md",
    list_md(VAULT / "projects" / "niikn"),
)

# projects/glavtorg/README.md → glavtorg children
append_index(
    VAULT / "projects" / "glavtorg" / "README.md",
    list_md(VAULT / "projects" / "glavtorg"),
)

# projects/krasnogorsk/README.md → krasnogorsk children
append_index(
    VAULT / "projects" / "krasnogorsk" / "README.md",
    list_md(VAULT / "projects" / "krasnogorsk"),
)

# claude-memory/MEMORY.md → all claude-memory *.md
append_index(
    VAULT / "claude-memory" / "MEMORY.md",
    [str(p.relative_to(VAULT)) for p in sorted((VAULT / "claude-memory").glob("*.md"))
     if p.name != "MEMORY.md"],
    title="Записи памяти",
)

# Root README.md — links to folder READMEs + top-level project files + mmfb
root_links = [
    "decisions/README.md",
    "notes/README.md",
    "snippets/README.md",
    "projects/dttb/README.md",
    "projects/niikn/README.md",
    "projects/glavtorg/README.md",
    "projects/krasnogorsk/README.md",
    "projects/mmfb/proxmox-inventory.md",
    "claude-memory/MEMORY.md",
]
# top-level projects/*.md files
for p in sorted((VAULT / "projects").glob("*.md")):
    root_links.append(str(p.relative_to(VAULT)))
append_index(VAULT / "README.md", root_links, title="Карта базы")