import argparse
import sys
from config import Config


def main():
    p = argparse.ArgumentParser(description="COBOL->Java/Spark Migration Verification")
    p.add_argument("--mode", choices=["native", "agent"], default="native",
                   help="native=existing pipeline, agent=jcl-data-create mode")
    p.add_argument("--copybook", default="",
                   help="COPYBOOK text file path (native mode)")
    p.add_argument("--cobol-src", default="",
                   help="COBOL source file path")
    p.add_argument("--java-src", default="",
                   help="Java source directory (must contain pom.xml)")
    p.add_argument("--mapping", default="",
                   help="YAML field mapping file path")

    p.add_argument("--runner", choices=["native", "spark"], default="native")
    p.add_argument("--coverage", choices=["boundary", "branch"], default="boundary")
    p.add_argument("--tolerance", type=float, default=0.01)
    p.add_argument("--verbose", action="store_true")
    p.add_argument("--dry-run", action="store_true")
    p.add_argument("--output-dir", default="./reports")
    p.add_argument("--quality-gate-mode", choices=["warn", "off"], default="warn",
                   help="质量门禁模式: warn=记录警告, off=关闭")
    p.add_argument("--gcov", action="store_true")

    # ── agent mode args ──
    p.add_argument("--design", default="",
                   help="[agent] 詳細設計書 .md")
    p.add_argument("--file-db-md", default="",
                   help="[agent] ファイル/DB 構造定義 .md")
    p.add_argument("--cpy", default="",
                   help="[agent] COPYBOOK 格納ディレクトリ")
    p.add_argument("--db-md", default="",
                   help="[agent] DB 定義書 .md")
    p.add_argument("--output", default="output",
                   help="[agent] jcl 测试数据输出ディレクトリ")
    p.add_argument("--api-key", default="sk-6156cccdc9c14d949cf5bfc5afc67a03",
                   help="[agent] DeepSeek API Key")
    p.add_argument("--api-model", default="deepseek-v4-flash",
                   help="[agent] API 模型名")

    args = p.parse_args()

    # ── Native mode validation ──
    if args.mode == "native":
        missing = []
        for name, val in [("--copybook", args.copybook), ("--cobol-src", args.cobol_src),
                          ("--java-src", args.java_src), ("--mapping", args.mapping)]:
            if not val:
                missing.append(name)
        if missing:
            print(f"Error in native mode: missing required args: {', '.join(missing)}")
            sys.exit(2)

    # ── Agent mode validation ──
    if args.mode == "agent":
        missing = []
        for name, val in [("--design", args.design), ("--cobol-src", args.cobol_src),
                          ("--file-db-md", args.file_db_md), ("--cpy", args.cpy),
                          ("--db-md", args.db_md)]:
            if not val:
                missing.append(name)
        if missing:
            print(f"Error in agent mode: missing required args: {', '.join(missing)}")
            sys.exit(2)

    # ── Dry-run ──
    if args.dry_run:
        from pathlib import Path
        issues = []
        if args.mode == "native":
            for lb, pt in [("copybook", args.copybook), ("cobol-src", args.cobol_src),
                           ("java-src", args.java_src), ("mapping", args.mapping)]:
                if not Path(pt).exists():
                    issues.append(f"  {lb}: {pt} (not found)")
        elif args.mode == "agent":
            for lb, pt in [("design", args.design), ("cobol-src", args.cobol_src),
                           ("file-db-md", args.file_db_md), ("db-md", args.db_md)]:
                if not Path(pt).exists():
                    issues.append(f"  {lb}: {pt} (not found)")
            if not Path(args.cpy).is_dir():
                issues.append(f"  cpy: {args.cpy} (not a directory)")
        if issues:
            print("DRY-RUN issues:\n" + "\n".join(issues))
            sys.exit(2)
        print("DRY-RUN: all inputs OK")
        sys.exit(0)

    c = Config()
    c.runner_mode = args.runner
    c.coverage_default = args.coverage
    c.tolerance = args.tolerance
    c.quality_gate_mode = args.quality_gate_mode
    c.gcov_enabled = args.gcov

    if args.mode == "native":
        from orchestrator import run_pipeline
        vr = run_pipeline(c, args.copybook, args.cobol_src, args.java_src, args.mapping)
        t = vr.fields_matched + vr.fields_mismatched
        print(f"{vr.program}: {vr.status} ({vr.fields_matched}/{t}, {vr.duration_s:.0f}s)" if t else f"{vr.program}: {vr.status}")
        sys.exit(vr.exit_code)

    elif args.mode == "agent":
        from orchestrator_jcl import run_jcl_pipeline
        results = run_jcl_pipeline(
            cfg=c,
            design_md=args.design,
            cobol_src=args.cobol_src,
            file_db_md=args.file_db_md,
            cpy_dir=args.cpy,
            db_md=args.db_md,
            java_src=args.java_src,
            mapping=args.mapping,
            output_dir=args.output,
            api_key=args.api_key,
            api_model=args.api_model,
        )
        for gn, vr in sorted(results.items()):
            t = vr.fields_matched + vr.fields_mismatched
            if t:
                print(f"{vr.program}: {vr.status} ({vr.fields_matched}/{t}, {vr.duration_s:.0f}s)")
            else:
                print(f"{vr.program}: {vr.status} ({vr.duration_s:.0f}s)")
        sys.exit(0)


if __name__ == "__main__":
    main()