# -*- coding: utf-8 -*-
# Korrekter rekursiver {{#if}}-Renderer (wie echtes Handlebars) zur Verifikation.
import re, glob, json, os
BASE=os.path.dirname(__file__)
schema=json.load(open(os.path.join(BASE,"variables.schema.json")))
allvars=set(schema["properties"].keys())

def make_ctx(inc, extra=None):
    c={k:(True if k.startswith("FLAG_") else k) for k in allvars}
    for k in ["FLAG_OT_USED","FLAG_DEV_INHOUSE","FLAG_CRYPTO_PKI","FLAG_CUSTOMER_SYSTEMS"]: c[k]=False
    c["FLAG_INCLUDE_SHOULD"]=inc
    c["ORG_NAME"]="Muster GmbH"; c["TOOL_NAME"]="ISMS-Portal"; c["REVIEW_CYCLE"]="jährlich"
    if extra: c.update(extra)
    return c

def render_if(t,c):
    # rekursiv innerste Bloecke zuerst
    pat=re.compile(r"\{\{#if (\w+)\}\}((?:(?!\{\{#if )(?!\{\{/if\}\}).)*?)\{\{/if\}\}",re.S)
    prev=None
    while prev!=t:
        prev=t
        t=pat.sub(lambda m:(m.group(2) if c.get(m.group(1)) else ""),t)
    return t

def render(t,c):
    t=render_if(t,c)
    t=re.sub(r"\{\{LINK:[^}]+\}\}","[LINK]",t)
    t=re.sub(r"\{\{(\w+)\}\}",lambda m:str(c[m.group(1)]) if m.group(1) in c else "«MISS:%s»"%m.group(1),t)
    return t

files=sorted(glob.glob(os.path.join(BASE,"richtlinien/*.md")))+[os.path.join(BASE,"Nachweisregister_zentral.md"),os.path.join(BASE,"ISA-Mapping-Matrix.md")]
problems=0
for inc in [True,False]:
    c=make_ctx(inc)
    for fp in files:
        r=render(open(fp,encoding="utf-8").read(),c)
        bad=re.findall(r"\{\{.*?\}\}",r); miss=sorted(set(re.findall(r"«MISS:\w+»",r)))
        if bad or miss:
            problems+=1; print("!",os.path.basename(fp),"inc=%s"%inc,"open:",bad[:4],"miss:",miss[:4])
d=json.load(open(os.path.join(BASE,"mapping.json")))
fa=set()
for fp in glob.glob(os.path.join(BASE,"richtlinien/*.md")):
    for m in re.findall(r"<!-- (REQ|IMPL) ([0-9.\-A-Za-z]+) -->",open(fp,encoding="utf-8").read()): fa.add(m[0]+" "+m[1])
ma=set()
for a in d["anforderungen"]: ma.add(a["req_anchor"]); ma.add(a["impl_anchor"])
# F17: mapping.json enthaelt kein 'implementation'-Feld; der Umsetzungstext wird zur
# Laufzeit ueber impl_anchor (Control-IMPL-Block) aus der jeweiligen .md aufgeloest.
leftover_hb=any("{{" in a["requirement"] or "{{" in a.get("implementation","") for a in d["anforderungen"])
print("Render-Probleme:",problems)
print("mapping-Anker ohne Datei:",sorted(ma-fa))
print("Datei-Anker ohne mapping:",sorted(fa-ma))
print("Handlebars-Reste in mapping-Text:",leftover_hb)
print("OK" if problems==0 and not (ma-fa) and not (fa-ma) and not leftover_hb else "PRUEFEN")