#!/usr/bin/env python3
"""bootstrap.py — stand up (or repair) an ECHO vault deterministically.

Idempotent and additive: every write is probe-before-write and NEVER overwrites
an existing file. The marker (_agent/echo-vault.md) is written LAST, so the vault
is only flagged "set up" once every piece is in place. Re-running is the repair
path (it fills in only what is missing). Cross-platform: pure Python via echo.py.

Usage:
  bootstrap.py [--dry-run]

Env: ECHO_BASE, ECHO_KEY (via echo.py), ECHO_TODAY (YYYY-MM-DD for {{DATE}}).
"""

from __future__ import annotations

import argparse
import sys
from pathlib import Path

SCRIPT_DIR = Path(__file__).resolve().parent
SKILL_DIR = SCRIPT_DIR.parent
SCAFFOLD = SKILL_DIR / "scaffold"
sys.path.insert(0, str(SCRIPT_DIR))

import echo  # noqa: E402

LEAVES = [
    "inbox/captures", "inbox/imports", "inbox/processing-log",
    "journal/daily", "journal/weekly", "journal/monthly", "journal/quarterly",
    "journal/annual", "journal/templates",
    "projects/active", "projects/incubating", "projects/on-hold", "projects/archived",
    "areas/business", "areas/personal", "areas/learning", "areas/systems",
    "resources/concepts", "resources/references", "resources/people",
    "resources/companies", "resources/meetings",
    "decisions/by-date",
    "_agent/context", "_agent/memory/working", "_agent/memory/episodic",
    "_agent/memory/semantic", "_agent/sessions", "_agent/health", "_agent/templates",
    "_agent/heartbeat", "_agent/skills/active", "_agent/skills/archived", "_agent/locks",
    "_agent/index",
]


def exists(path: str) -> bool:
    status, _ = echo.request("GET", echo.vault_url(path))
    return status == 200


def put_text(path: str, text: str) -> None:
    status, body = echo.request("PUT", echo.vault_url(path), data=text.encode(),
                                headers={"Content-Type": "text/markdown"})
    echo.check(status, body, f"bootstrap put {path}")


def seed(path: str, source: Path, dry_run: bool) -> None:
    if exists(path):
        print(f"bootstrap: skip (exists)  {path}")
        return
    if dry_run:
        print(f"bootstrap: would seed     {path} <- {source.relative_to(SKILL_DIR)}")
        return
    text = source.read_text(encoding="utf-8").replace("{{DATE}}", echo.today())
    put_text(path, text)
    print(f"bootstrap: seeded         {path}")


def leaf_readme(folder: str, dry_run: bool) -> None:
    path = f"{folder}/README.md"
    if exists(path):
        return
    if dry_run:
        print(f"bootstrap: would readme   {path}")
        return
    name = folder.rsplit("/", 1)[-1]
    put_text(path, f"# {name}\n\nMemory vault folder. See the echo-memory plugin for conventions.\n")
    print(f"bootstrap: readme         {path}")


def main(argv: list[str] | None = None) -> int:
    parser = argparse.ArgumentParser(description="Bootstrap or repair an ECHO vault")
    parser.add_argument("--dry-run", "-n", action="store_true")
    args = parser.parse_args(argv)

    if not SCAFFOLD.is_dir():
        print(f"bootstrap: scaffold not found at {SCAFFOLD}", file=sys.stderr)
        return 1

    if exists("_agent/echo-vault.md"):
        status, body = echo.request("GET", echo.vault_url("_agent/echo-vault.md"))
        version = "unknown"
        if status == 200:
            version = next((ln.split(":", 1)[1].strip()
                            for ln in body.decode(errors="replace").splitlines()
                            if ln.startswith("schema_version:")), "unknown")
        print(f"bootstrap: marker present (schema_version={version}). Running repair pass (fills only missing files).")

    for folder in LEAVES:
        leaf_readme(folder, args.dry_run)

    templates = SCAFFOLD / "templates"
    if templates.is_dir():
        for source in sorted(templates.rglob("*.md")):
            seed(source.relative_to(templates).as_posix(), source, args.dry_run)

    seed("_agent/memory/semantic/operator-preferences.md", SCAFFOLD / "anchors" / "operator-preferences.seed.md", args.dry_run)
    seed("_agent/context/current-context.md", SCAFFOLD / "anchors" / "current-context.seed.md", args.dry_run)
    seed("inbox/captures/inbox.md", SCAFFOLD / "anchors" / "inbox.seed.md", args.dry_run)
    seed("README.md", SCAFFOLD / "README.vault.md", args.dry_run)
    seed("_agent/echo-vault.md", SCAFFOLD / "echo-vault.md", args.dry_run)  # marker LAST

    print(f"bootstrap: done ({'DRY-RUN ' if args.dry_run else ''}{echo.today()}).")
    print("bootstrap: next: create today's daily note + a bootstrap session log + heartbeat (see SKILL.md).")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())