/**
 * Prefer kd-grill on new Kingdee delivery turns.
 * Does not block coding; injects guidance only.
 */

export type GrillSoftHint = {
	shouldPreferGrill: boolean;
	reason: string;
	systemLines: string[];
};

const SKIP_TERMS = [
	"只改 readme",
	"只改文档",
	"changelog",
	"写文档",
	"翻译文档",
	"更新说明",
	"直接写",
	"别问",
	"不要问",
	"别确认",
	"不用确认",
	"跳过澄清",
	"skip grill",
	"no grill",
] as const;

const KINGDEE_DEV_TERMS = [
	"插件",
	"plugin",
	"表单",
	"列表",
	"操作插件",
	"单据",
	"分录",
	"openapi",
	"webapi",
	"苍穹",
	"星瀚",
	"星空",
	"企业版",
	"bos",
	"abstractbill",
	"abstractform",
	"二开",
	"扩展",
	"下推",
	"审核",
	"保存",
	"字段",
	"表单插件",
] as const;

const NEW_WORK_TERMS = [
	"写",
	"做",
	"实现",
	"开发",
	"加一个",
	"搞一个",
	"帮我",
	"需要",
	"要一个",
	"新增",
	"做一个",
	"来个",
	"生成",
	"创建",
] as const;

function hasAny(text: string, terms: readonly string[]): boolean {
	const lower = text.toLowerCase();
	return terms.some(t => lower.includes(t.toLowerCase()));
}

export function buildGrillSoftHint(prompt: string): GrillSoftHint {
	const text = (prompt || "").trim();
	if (!text) {
		return { shouldPreferGrill: false, reason: "empty", systemLines: [] };
	}
	if (hasAny(text, SKIP_TERMS)) {
		return {
			shouldPreferGrill: false,
			reason: "user asked to skip clarify / direct write",
			systemLines: [],
		};
	}
	const kingdee = hasAny(text, KINGDEE_DEV_TERMS);
	const newWork = hasAny(text, NEW_WORK_TERMS);
	const shortDelivery =
		kingdee &&
		(text.length < 80 ||
			/校验|联动|只读|批量|推单|对接|打开|加载|提示|拦/.test(text));

	if (!kingdee || (!newWork && !shortDelivery)) {
		return {
			shouldPreferGrill: false,
			reason: "not new kingdee delivery",
			systemLines: [],
		};
	}

	const lines = [
		"",
		"## 本轮建议：优先 kd-grill 与通用契约",
		"",
		"- 优先 skill `kd-grill`：对齐产品线、生命周期位、目标单据、边界。",
		"- **通用契约** `api-surface-contract.md`（覆盖任意场景，非单题样例）：",
		"  1) 生命周期位 → 表单/列表/操作/转换/OpenAPI；",
		"  2) 每个字段字符串 → 访问位：GetValue/SetValue/FieldKeys=Key，entity/entry/DataEntity 索引=PropertyName，SQL=FieldName；",
		"  3) API ⊆ 当前类型 assets 手册，禁止面外方法。",
		"- 红旗：`entity[\"F…\"]` / `entry[\"F…\"]` 通常是 Key 误作 PropertyName（任意字段，不限数量）。",

		"- 企业版：禁止口算去 F；数据包索引用 PropertyName（元数据）。",
		"- 旗舰/苍穹/星瀚：不套企业版三标识；entityId 禁止物理表名。",
		"- 字段取证（企业版与旗舰相同）：Agent 引导只读 SQL 连业务库 + LLM 解析（metadata-db-query.md），**非 MCP**。",
		"- 无主机/库名/只读认证时：**先向用户索取连接信息**，禁止装成已验证。",
		"- 用户明确跳过查库：可写码，字段必须标 // source=assumption 待库验证。",
		"- 实现：产品 skill + assets；禁止臆造 SDK。",
		"",
	];



	return {
		shouldPreferGrill: true,
		reason: "new kingdee delivery — prefer kd-grill first",
		systemLines: lines,
	};
}

export function withGrillPreferred(skills: string[], prefer: boolean): string[] {
	if (!prefer) return skills;
	const rest = skills.filter(s => s !== "kd-grill");
	return ["kd-grill", ...rest];
}