#!/usr/bin/env python3
"""Pārbauda MI stratēģijas datukopu: XSD, faila nosaukums = ID, numerācija.

Lietojums:  python3 tools/validate.py [data/]
Prasības:   pip install lxml
"""
import sys
from pathlib import Path
from lxml import etree

ROOT = Path(__file__).resolve().parent.parent
XSD = etree.XMLSchema(etree.parse(str(ROOT / "schemas" / "mi-strategija-0.1.xsd")))
NS = {"s": "urn:pppa:cac:mi-strategija:0.1"}


def check(path):
    errs = []
    doc = etree.parse(str(path))
    if not XSD.validate(doc):
        errs += [f"XSD {e.line}: {e.message}" for e in XSD.error_log]
        return errs
    r = doc.getroot()
    did = r.get("id")
    if path.stem != did:
        errs.append(f"faila nosaukums {path.name} ≠ ID {did}.xml")
    if r.find("s:Updated", NS).get("value") != did[-10:]:
        errs.append("ID datums nesakrīt ar Updated/@value")
    for p in r.iterfind("s:Pillar", NS):
        if not p.get("id").startswith(did + ".p"):
            errs.append(f"pīlāra ID {p.get('id')}")
    nums = []
    for a in r.iterfind(".//s:Action", NS):
        n = int(a.get("number"))
        nums.append(n)
        if a.get("id") != f"{did}.r{n:02d}":
            errs.append(f"rīcības {n} ID {a.get('id')} neatbilst numuram")
    if sorted(nums) != list(range(1, len(nums) + 1)):
        errs.append(f"rīcību numerācija nav 1..{len(nums)}: {sorted(nums)}")
    goals = [int(g.get("number").rstrip(".")) for g in r.iterfind(".//s:Goal", NS)]
    if goals != list(range(1, len(goals) + 1)):
        errs.append(f"mērķu numerācija {goals}")
    nores = [a.get("number") for a in r.iterfind(".//s:Action", NS) if a.find("s:Responsible", NS) is None]
    print(f"  {path.name}: {len(list(r.iterfind('s:Pillar', NS)))} pīlāri, {len(goals)} mērķi, "
          f"{len(nums)} rīcības; bez atbildīgās institūcijas: {len(nores)}")
    return errs


def main(folder):
    bad = 0
    for f in sorted(Path(folder).glob("pppa-mis-*.xml")):
        e = check(f)
        for x in e:
            print("  KĻŪDA", f.name, x)
        bad += bool(e)
    print("OK" if not bad else f"{bad} faili ar kļūdām")
    return 1 if bad else 0


if __name__ == "__main__":
    sys.exit(main(sys.argv[1] if len(sys.argv) > 1 else ROOT / "data"))