import json
from pathlib import Path

import pytest

from rpa_yisaiqi.contract_create_node import (
    ContractCreateError,
    ContractCreateInput,
    PdfMergeUnsupported,
    create_contract_in_contract_system,
)
from rpa_yisaiqi.contract_draft import load_contract_draft
from rpa_yisaiqi.pdf_utils import ensure_merged_pdf


def test_load_contract_draft_maps_full_contract_inputs(tmp_path):
    draft_path = tmp_path / "contract-draft.json"
    draft_path.write_text(
        json.dumps(
            {
                "supplierName": "重庆亿昊药业",
                "orderDate": "2026-08-11",
                "sourceType": "YYC",
                "templateType": "NON_FORMAT",
                "templateName": "非格式--采购协议",
                "customerCode": "CUST-001",
                "customerName": "重庆亿昊药业",
                "contractCategory": "采购协议",
                "settlementType": "付款",
                "contractBackground": "按订单自动起草采购协议",
                "contractNature": "主合同",
                "amountCurrency": "人民币",
                "amount": "12000.50",
                "contractEndDate": "2026-12-31",
                "isMajorContract": "否",
                "isPrepayment": "否",
                "belongYear": "2026",
                "paymentMethod": "承兑",
                "paymentDays": "45",
                "contractStatus": "正式合同",
                "containsBloodProducts": "否",
                "platformPdfPaths": ["C:/jobs/JOB-1/a.pdf", "C:/jobs/JOB-1/b.pdf"],
                "goodsLines": [
                    {
                        "operationCode": "ADD",
                        "goodsCode": "YP-001",
                        "goodsName": "阿卡波糖片",
                        "approvalNo": "国药准字H00000001",
                        "spec": "50mg*30片",
                        "unit": "盒",
                        "quantity": 12,
                    }
                ],
            },
            ensure_ascii=False,
        ),
        encoding="utf-8",
    )

    draft = load_contract_draft(draft_path)

    assert draft.supplier_name == "重庆亿昊药业"
    assert draft.template_type == "NON_FORMAT"
    assert draft.template_name == "非格式--采购协议"
    assert draft.customer_code == "CUST-001"
    assert draft.customer_name == "重庆亿昊药业"
    assert draft.contract_category == "采购协议"
    assert draft.settlement_type == "付款"
    assert draft.contract_background == "按订单自动起草采购协议"
    assert draft.amount == "12000.50"
    assert draft.contract_end_date == "2026-12-31"
    assert draft.belong_year == "2026"
    assert draft.payment_method == "承兑"
    assert draft.contract_status == "正式合同"
    assert draft.contains_blood_products == "否"
    assert draft.platform_pdf_paths == ["C:/jobs/JOB-1/a.pdf", "C:/jobs/JOB-1/b.pdf"]
    assert draft.goods_lines[0].goods_code == "YP-001"


def test_yyc_requires_pdf_inputs_before_contract_drafting(tmp_path):
    draft_path = tmp_path / "draft.json"
    draft_path.write_text(
        json.dumps(
            {
                "supplierName": "重庆亿昊药业",
                "orderDate": "2026-08-11",
                "sourceType": "YYC",
                "goodsLines": [],
                "platformPdfPaths": [],
            },
            ensure_ascii=False,
        ),
        encoding="utf-8",
    )
    spec = ContractCreateInput(
        job_id="JOB-1",
        supplier_name="重庆亿昊药业",
        order_date="2026-08-11",
        source_type="YYC",
        draft_path=str(draft_path),
    )

    with pytest.raises(PdfMergeUnsupported):
        create_contract_in_contract_system(spec)


def test_ensure_merged_pdf_uses_single_pdf_without_merge(tmp_path):
    source = tmp_path / "one.pdf"
    source.write_bytes(b"%PDF-1.4\n%one\n")

    assert ensure_merged_pdf([str(source)], str(tmp_path / "merged.pdf")) == str(source)


def test_real_drafting_requires_yisaiqi_adapter_mapping(tmp_path):
    draft_path = tmp_path / "draft.json"
    draft_path.write_text(
        json.dumps(
            {
                "supplierName": "小药药供应商",
                "orderDate": "2026-08-11",
                "sourceType": "XYY",
                "goodsLines": [],
                "platformPdfPaths": [],
            },
            ensure_ascii=False,
        ),
        encoding="utf-8",
    )
    spec = ContractCreateInput(
        job_id="JOB-1",
        supplier_name="小药药供应商",
        order_date="2026-08-11",
        source_type="XYY",
        draft_path=str(draft_path),
    )

    with pytest.raises(ContractCreateError, match="YiSaiQiBrowserAdapter"):
        create_contract_in_contract_system(spec)