"""海报字段画像：统一约束不同险种、不同版式的内容范围。"""
from copy import deepcopy


_PROFILES = {
    ("savings", "single"): {
        "required": ["product_name", "company_name", "currency", "annual_premium", "premium_term"],
        "recommended": ["features", "benefit_milestone"],
        "optional": ["basic_sum_insured", "coverage_period", "insured_age"],
        "forbidden": ["full_benefit_table", "withdrawal_table"],
        "maxFeatureCount": 3,
        "milestoneYears": [20],
    },
    ("savings", "long"): {
        "required": ["product_name", "company_name", "currency", "annual_premium", "premium_term"],
        "recommended": ["features", "total_premium", "benefit_milestones", "breakeven_hint"],
        "optional": ["first_year_amount_due", "withdrawal_plan", "coverage_period"],
        "forbidden": [],
        "maxFeatureCount": 6,
        "milestoneYears": [10, 20, 30],
    },
    ("ci", "single"): {
        "required": ["product_name", "company_name", "currency", "sum_assured"],
        "recommended": ["annual_premium", "premium_term", "coverage_highlights", "waiting_period"],
        "optional": ["insured_age", "gender", "smoker"],
        "forbidden": ["breakeven_hint", "withdrawal_table"],
        "maxFeatureCount": 3,
        "milestoneYears": [],
    },
    ("ci", "long"): {
        "required": ["product_name", "company_name", "currency", "sum_assured"],
        "recommended": ["coverage_highlights", "features", "waiting_period", "coverage_period"],
        "optional": ["premium_waiver", "death_benefit", "insured_age", "smoker"],
        "forbidden": ["breakeven_hint", "withdrawal_table"],
        "maxFeatureCount": 6,
        "milestoneYears": [],
    },
    ("iul", "single"): {
        "required": ["product_name", "company_name", "currency", "sum_assured"],
        "recommended": ["target_premium", "premium_term", "index_account"],
        "optional": ["insured_age", "gender", "smoker"],
        "forbidden": ["unverified_return_promise", "withdrawal_table"],
        "maxFeatureCount": 3,
        "milestoneYears": [20],
    },
    ("iul", "long"): {
        "required": ["product_name", "company_name", "currency", "sum_assured"],
        "recommended": ["target_premium", "minimum_premium", "index_accounts", "benefit_milestones"],
        "optional": ["withdrawal_notes", "fee_notes", "first_year_amount_due"],
        "forbidden": ["unverified_return_promise"],
        "maxFeatureCount": 6,
        "milestoneYears": [10, 20, 30],
    },
    ("other", "single"): {
        "required": ["product_name", "company_name", "coverage_highlights", "disclaimer"],
        "recommended": ["features"],
        "optional": ["audience"],
        "forbidden": ["benefit_table", "return_metrics"],
        "maxFeatureCount": 3,
        "milestoneYears": [],
    },
    ("other", "long"): {
        "required": ["product_name", "company_name", "coverage_highlights", "disclaimer"],
        "recommended": ["features", "audience"],
        "optional": ["coverage_period"],
        "forbidden": ["benefit_table", "return_metrics"],
        "maxFeatureCount": 6,
        "milestoneYears": [],
    },
}


def get_field_profile(plan_type: str, output_mode: str) -> dict:
    """返回安全副本；未知险种和版式回退到保守画像。"""
    normalized_type = str(plan_type or "other").lower()
    if normalized_type not in {"savings", "ci", "iul"}:
        normalized_type = "other"
    normalized_mode = "long" if output_mode == "long" else "single"
    profile = deepcopy(_PROFILES[(normalized_type, normalized_mode)])
    profile["planType"] = normalized_type
    profile["outputMode"] = normalized_mode
    return profile