import sys

sys.dont_write_bytecode = True

import argparse
import os
import re

import requests

sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from keycheck_common import (
    append_jsonl,
    classify_common_http_status,
    combined_provider_routing_hint,
    commit_status_transaction,
    default_input_file,
    default_proxy_file,
    ensure_output_files,
    iter_findings,
    keycheck_input_mode,
    load_checked_statuses,
    load_known_keys,
    load_proxies,
    mask_secret,
    provider_routing_database_failed,
    recover_status_transaction,
    request_error_message,
    record_validation_result,
    require_provider_authority,
    service_output_dir,
    should_skip_key,
    write_keycheck_event,
)
from keycheckers.provider_resolution import resolve_provider_key


SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
PARENT_DIR = os.path.dirname(SCRIPT_DIR)
SERVICE = "deepseek"
OUTPUT_DIR = os.getenv("KEYCHECK_OUTPUT_DIR") or service_output_dir(SERVICE)

INPUT_FILE = os.getenv("KEYCHECK_INPUT_FILE") or default_input_file()
PROXY_FILE = os.getenv("KEYCHECK_PROXY_FILE") or default_proxy_file()
CHECKED_FILE = os.path.join(OUTPUT_DIR, "deepseekChecked.txt")
RESULTS_FILE = os.path.join(OUTPUT_DIR, "deepseekResults.jsonl")

STATUS_FILES = {
    "VALID": os.path.join(OUTPUT_DIR, "deepseekAlive.txt"),
    "NO_BALANCE": os.path.join(OUTPUT_DIR, "deepseekNoBalance.txt"),
    "DEAD": os.path.join(OUTPUT_DIR, "deepseekDead.txt"),
    "LIMITED": os.path.join(OUTPUT_DIR, "deepseekLimited.txt"),
    "NETWORK": os.path.join(OUTPUT_DIR, "deepseekNetwork.txt"),
    "NO_CONTEXT": os.path.join(OUTPUT_DIR, "deepseekNoContext.txt"),
    "UNKNOWN": os.path.join(OUTPUT_DIR, "deepseekUnknown.txt"),
}

DEEPSEEK_REGEX = re.compile(r"sk-[a-z0-9]{32}")
DEEPSEEK_DETECTOR_NAMES = {"deepseek", "deepseekapikey", "deepseek_api_key"}
DEEPSEEK_EXPLICIT_DETECTOR_NAMES = {"deepseekapikey", "deepseek_api_key"}
QWEN_EXPLICIT_DETECTOR_NAMES = {"qwendashscope", "qwen_dashscope"}
KIMI_EXPLICIT_DETECTOR_NAMES = {"kimimoonshot", "moonshotai"}
QWEN_CONTEXT_REGEX = re.compile(
    r"(?:DASHSCOPE_API_KEY|QWEN_API_KEY|dashscope|qwen|model[_-]?studio|bailian)",
    re.IGNORECASE,
)
DEEPSEEK_CONTEXT_REGEX = re.compile(r"(?:DEEPSEEK_API_KEY|deepseek|api\.deepseek\.com)", re.IGNORECASE)
KIMI_CONTEXT_REGEX = re.compile(
    r"(?:MOONSHOT_API_KEY|KIMI_API_KEY|api\.moonshot\.(?:ai|cn)|platform\.kimi\.(?:ai|com))",
    re.IGNORECASE,
)
AMBIGUOUS_PROVIDER_HINT = "ambiguous_qwen_deepseek"
AMBIGUOUS_GENERIC_SK_HINT = "ambiguous_generic_sk"
GENERIC_SK_PROVIDERS = {"qwen", "deepseek", "kimi", "zai"}
EXPLICIT_ASSIGNMENT_HINT_SOURCE = "explicit_assignment"


def ensure_files():
    ensure_output_files([CHECKED_FILE, RESULTS_FILE, *STATUS_FILES.values()])
    recover_status_transaction(CHECKED_FILE, STATUS_FILES)


def iter_candidate_decisions(input_file, plain_files):
    detector_names = ["DeepSeek", "DeepSeekApiKey", "DeepSeek_API_Key", "CustomRegex"]
    for item in iter_findings(input_file, detector_names):
        finding = item.get("finding") or {}
        if not finding_has_deepseek_detector(finding):
            continue
        key = item.get("credential_secret_text") or item["raw"]
        if key and DEEPSEEK_REGEX.fullmatch(key):
            hint = combined_provider_routing_hint(key, finding_provider_routing_hint(finding))
            if provider_routing_database_failed():
                raise RuntimeError("provider routing evidence lookup failed closed")
            yield key, item["source"], finding, hint


def extract_candidates(input_file, plain_files):
    for key, source, finding, hint in iter_candidate_decisions(input_file, plain_files):
        if hint == "deepseek":
            yield key, source, finding


def route_rejection_result(hint):
    normalized = str(hint or "missing").strip().lower()
    return {
        "status": "NO_CONTEXT",
        "routing_hint": normalized,
        "message": f"candidate is not safely attributable to DeepSeek; routing_hint={normalized}",
    }


def finding_detector_names(finding):
    if not isinstance(finding, dict):
        return set()
    extra = finding.get("ExtraData") if isinstance(finding.get("ExtraData"), dict) else {}
    names = {
        str(finding.get("DetectorName") or finding.get("detector") or "").strip().lower(),
        str(extra.get("name") or "").strip().lower(),
    }
    return {name for name in names if name}


def finding_has_deepseek_detector(finding):
    return bool(finding_detector_names(finding) & DEEPSEEK_DETECTOR_NAMES)


def finding_has_explicit_detector(finding, detector_names):
    return bool(finding_detector_names(finding) & set(detector_names))


def finding_provider_routing_hint(finding):
    if not isinstance(finding, dict):
        return ""
    context = finding.get("ScannerContext") if isinstance(finding.get("ScannerContext"), dict) else {}
    persisted_hint = context.get("provider_hint")
    if (
        context.get("provider_hint_source") == EXPLICIT_ASSIGNMENT_HINT_SOURCE
        and persisted_hint in (*GENERIC_SK_PROVIDERS, AMBIGUOUS_PROVIDER_HINT, AMBIGUOUS_GENERIC_SK_HINT)
    ):
        return persisted_hint
    parts = []
    for key in ("nearby", "file"):
        if context.get(key):
            parts.append(str(context.get(key)))
    metadata = finding.get("SourceMetadata") if isinstance(finding.get("SourceMetadata"), dict) else {}
    data = metadata.get("Data") if isinstance(metadata.get("Data"), dict) else {}
    for details in data.values():
        if not isinstance(details, dict):
            continue
        for key in ("file", "repository", "repo", "link", "image"):
            if details.get(key):
                parts.append(str(details.get(key)))
    text = "\n".join(parts)
    evidence = set()
    if QWEN_CONTEXT_REGEX.search(text) or finding_has_explicit_detector(finding, QWEN_EXPLICIT_DETECTOR_NAMES):
        evidence.add("qwen")
    if DEEPSEEK_CONTEXT_REGEX.search(text) or finding_has_explicit_detector(finding, DEEPSEEK_EXPLICIT_DETECTOR_NAMES):
        evidence.add("deepseek")
    if KIMI_CONTEXT_REGEX.search(text) or finding_has_explicit_detector(finding, KIMI_EXPLICIT_DETECTOR_NAMES):
        evidence.add("kimi")
    if persisted_hint == AMBIGUOUS_PROVIDER_HINT:
        evidence.update(("qwen", "deepseek"))
    elif persisted_hint == AMBIGUOUS_GENERIC_SK_HINT:
        evidence.update(GENERIC_SK_PROVIDERS)
    elif persisted_hint in GENERIC_SK_PROVIDERS:
        evidence.add(persisted_hint)
    if len(evidence) > 1:
        return AMBIGUOUS_PROVIDER_HINT if evidence == {"qwen", "deepseek"} else AMBIGUOUS_GENERIC_SK_HINT
    return next(iter(evidence)) if evidence else ""


def finding_has_ambiguous_provider_hint(finding):
    return finding_provider_routing_hint(finding) in (AMBIGUOUS_PROVIDER_HINT, AMBIGUOUS_GENERIC_SK_HINT)


def finding_looks_like_qwen_context(finding):
    return finding_provider_routing_hint(finding) == "qwen"


def check_key(key, proxy, timeout):
    url = "https://api.deepseek.com/user/balance"
    headers = {"Authorization": f"Bearer {key}"}
    try:
        response = requests.get(url, headers=headers, proxies=proxy, timeout=timeout)
    except requests.RequestException as exc:
        return {"status": "NETWORK", "message": str(exc)}

    if response.status_code == 200:
        data = response.json()
        balance_infos = data.get("balance_infos", [])
        total_usd = 0.0
        for balance in balance_infos:
            amount = float(balance.get("total_balance", "0") or 0)
            currency = balance.get("currency", "USD")
            if currency == "CNY":
                amount *= 0.14
            total_usd += amount
        available = bool(data.get("is_available", False))
        status = "VALID" if available and total_usd > 0 else "NO_BALANCE"
        return {
            "status": status,
            "authenticated": True,
            "available": available,
            "balance_usd": round(total_usd, 4),
            "message": f"available={available}; balance=${total_usd:.4f}",
        }

    status = classify_common_http_status(response.status_code)
    return {"status": status, "http_status": response.status_code, "message": request_error_message(response)}


def write_result(key, result, source, finding):
    write_keycheck_event(SERVICE, RESULTS_FILE, key, result, source, finding, "DeepSeek")
    commit_status_transaction(
        CHECKED_FILE, STATUS_FILES, key, result["status"], result.get("message", ""), source,
    )
    record_validation_result(SERVICE, key, result, source, finding, "DeepSeek")


def parse_args():
    parser = argparse.ArgumentParser(description="DeepSeek key checker")
    parser.add_argument("--input", default=INPUT_FILE)
    parser.add_argument("--plain", action="append", default=[])
    parser.add_argument("--proxy-file", default=PROXY_FILE)
    parser.add_argument("--timeout", type=int, default=20)
    parser.add_argument("--max-keys", type=int, default=0)
    parser.add_argument("--retry-network", action="store_true")
    parser.add_argument("--retry-limited", action="store_true")
    parser.add_argument("--retry-unknown", action="store_true")
    parser.add_argument("--retry-no-balance", action="store_true")
    parser.add_argument("--retry-valid", action="store_true")
    parser.add_argument("--recheck-all", action="store_true")
    return parser.parse_args()


def main():
    require_provider_authority(SERVICE)
    args = parse_args()
    ensure_files()
    proxy_cycler = load_proxies(args.proxy_file)
    checked = load_checked_statuses(CHECKED_FILE)
    known = load_known_keys(CHECKED_FILE, STATUS_FILES)
    retry_statuses = set()
    if args.retry_network:
        retry_statuses.add("NETWORK")
    if args.retry_limited:
        retry_statuses.add("LIMITED")
    if args.retry_unknown:
        retry_statuses.update({"UNKNOWN", "NO_CONTEXT"})
    if args.retry_no_balance:
        retry_statuses.add("NO_BALANCE")
    if args.retry_valid:
        retry_statuses.add("VALID")

    processed = 0
    skipped = 0
    postgres_mode = keycheck_input_mode() == "postgres"
    for key, source, finding, routing_hint in iter_candidate_decisions(args.input, args.plain):
        route_rejected = routing_hint != "deepseek"
        ambiguous_route = routing_hint in (AMBIGUOUS_PROVIDER_HINT, AMBIGUOUS_GENERIC_SK_HINT)
        if route_rejected and not postgres_mode:
            skipped += 1
            continue
        if not route_rejected and should_skip_key(key, checked, known, args, retry_statuses, service=SERVICE, source=source, finding=finding, detector="DeepSeek"):
            skipped += 1
            continue
        if args.max_keys and processed >= args.max_keys:
            break
        processed += 1
        print(f"\n[{processed}] DeepSeek candidate {mask_secret(key)} from {source}")
        if route_rejected and ambiguous_route:
            proxy = next(proxy_cycler) if proxy_cycler else None
            result = resolve_provider_key(
                key, finding, proxy, args.timeout,
                hint=routing_hint, origin_service=SERVICE,
            )
        elif route_rejected:
            result = route_rejection_result(routing_hint)
        else:
            proxy = next(proxy_cycler) if proxy_cycler else None
            result = check_key(key, proxy, args.timeout)
        print(f"  STATUS: {result['status']} | {result.get('message', '')[:200]}")
        write_result(key, result, source, finding)
        known.add(key)
        checked[key] = result["status"]

    print(f"\nDone. Processed={processed}, skipped={skipped}, results={RESULTS_FILE}")


if __name__ == "__main__":
    main()