#!/usr/bin/env python3
"""Tests for pisg-autoalias.py:  python3 scripts/pisg-autoalias-test.py
Builds small logs in a temporary folder and checks each rule; touches nothing else."""
import os
import subprocess
import sys
import tempfile

HERE = os.path.dirname(os.path.abspath(__file__))
SCRIPT = os.path.join(HERE, "pisg-autoalias.py")
passed = failed = 0


def ok(cond, msg):
    global passed, failed
    if cond:
        passed += 1
    else:
        failed += 1
        print("  FAIL:", msg)


with tempfile.TemporaryDirectory() as tmp:
    os.mkdir(os.path.join(tmp, "logs"))
    L = []
    join = lambda n, h: L.append(f"[10:00:00] {n} (~u@{h}) joined #Test.")
    part = lambda n, h: L.append(f"[11:00:00] {n} (~u@{h}) left #Test.")
    say = lambda n: L.append(f"[10:30:00] <{n}> hello there")
    join("Alice", "alice.users.undernet.org"); join("Alice_", "alice.users.undernet.org"); part("+Al", "alice.users.undernet.org")
    for _ in range(5): say("Alice")
    say("Alice_")
    join("Gina", "irccloud.example.net"); join("Hank", "irccloud.example.net")
    join("Bob", "bob.users.undernet.org"); join("Bobby", "bob.users.undernet.org")
    join("Carl", "shared.users.undernet.org"); join("Carla", "shared.users.undernet.org")
    for i in range(31): join(f"Crowd{i}", "crowd.users.undernet.org")
    join("Solo", "solo.users.undernet.org")
    join("%Dan", "DAN.users.undernet.org"); join("Dan2", "dan.users.undernet.org"); say("Dan2"); say("Dan2")
    open(os.path.join(tmp, "logs", "t.log.20260101"), "w").write("\n".join(L) + "\n")
    open(os.path.join(tmp, "logs", ".hidden.tmp"), "w").write(
        "[10:00:00] Zed (~u@zed.users.undernet.org) joined #Test.\n[10:00:00] Zed2 (~u@zed.users.undernet.org) joined #Test.\n")
    open(os.path.join(tmp, "manual.cfg"), "w").write('# mine\n<user nick="Bob" alias="B2" sex="m">\n<user nick="Carl">\n<user nick="Carla" sex="f">\n')
    out = os.path.join(tmp, "out.cfg")
    run = lambda: subprocess.run([sys.executable, SCRIPT, "--logdir", os.path.join(tmp, "logs"), "--prefix", "t.log.",
                                  "--manual", os.path.join(tmp, "manual.cfg"), "--out", out], capture_output=True, text=True)
    r = run()
    ok(r.returncode == 0, "runs: " + r.stderr[-200:])
    t = open(out).read()
    ok('nick="Alice" alias="Al Alice_"' in t, "busiest nick names the group; the +Al prefix is stripped and merged")
    ok("Gina" not in t and "Hank" not in t, "a shared non-X host is never merged")
    ok('nick="Bob" alias="Bobby"' in t and "B2" not in t, "a group touching your entry joins YOUR entry")
    ok("Carl" not in t and "Carla" not in t, "a group touching two of your entries is skipped")
    ok("Crowd" not in t, "an oversized group is skipped")
    ok("Solo" not in t, "a single-nick account produces nothing")
    ok('nick="Dan2" alias="Dan"' in t, "host match ignores case; %-prefix stripped; busiest chatter named")
    ok("Zed" not in t, "hidden and temporary files in the log folder are ignored")
    first = [l for l in t.splitlines() if "Generated by" not in l]
    run()
    second = [l for l in open(out).read().splitlines() if "Generated by" not in l]
    ok(first == second, "a second run gives the same result")
    ok(not [f for f in os.listdir(tmp) if f.startswith(".autoalias")], "no temporary file left behind")

print(f"{passed} passed, {failed} failed")
sys.exit(1 if failed else 0)