"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.cloneInvestigationState = cloneInvestigationState;
exports.createEmptyInvestigationState = createEmptyInvestigationState;
exports.updateInvestigationState = updateInvestigationState;
const stage1Contracts_1 = require("../types/stage1Contracts");
const stage2ProblemUnits_1 = require("../types/stage2ProblemUnits");
function uniqueStrings(values) {
    return Array.from(new Set(values.map((item) => item.trim()).filter(Boolean)));
}
function capStrings(values, max) {
    return uniqueStrings(values).slice(0, max);
}
function detectAccounts(text) {
    return capStrings(text.match(/\b\d{2}(?:\.\d{2})?\b/g) ?? [], stage1Contracts_1.INVESTIGATION_MAX_PRIMARY_ACCOUNTS);
}
function detectPeriod(text) {
    const monthly = text.match(/\b(20\d{2})[-/.](0[1-9]|1[0-2])\b/);
    if (monthly)
        return `${monthly[1]}-${monthly[2]}`;
    const yearly = text.match(/\b(20\d{2})\b/);
    if (yearly)
        return yearly[1];
    return null;
}
function deriveDomain(routeSummary) {
    if (!routeSummary)
        return null;
    if (routeSummary.mode === "legacy_v1") {
        return routeSummary.route_hint;
    }
    const routes = routeSummary.decisions.map((item) => item.route).filter((route) => route !== "no_route");
    const uniqueRoutes = uniqueStrings(routes);
    if (uniqueRoutes.length === 0) {
        return "no_route";
    }
    return uniqueRoutes.join(",");
}
function deriveNarrowingStatus(routeSummary, coverageReport) {
    if (!routeSummary) {
        return "unknown";
    }
    if (routeSummary.mode === "legacy_v1") {
        return "not_needed";
    }
    if (routeSummary.fallback.type === "clarification" || coverageReport.clarification_needed_for.length > 0) {
        return "needs_clarification";
    }
    const hasNoRoute = routeSummary.decisions.some((item) => item.route === "no_route");
    if (hasNoRoute) {
        return "broad_guarded";
    }
    return routeSummary.decisions.length > 1 ? "applied" : "not_needed";
}
function deriveQueryModeHint(routeSummary) {
    if (!routeSummary) {
        return "investigation_candidate";
    }
    if (routeSummary.mode === "legacy_v1") {
        return "direct_answer";
    }
    return routeSummary.fallback.type === "none" ? "direct_answer" : "investigation_candidate";
}
function collectEvidenceRefs(retrievalResults) {
    const refs = retrievalResults.flatMap((result) => result.evidence.map((item) => item.evidence_id));
    return capStrings(refs, stage1Contracts_1.INVESTIGATION_MAX_EVIDENCE_REFS);
}
function collectOpenUncertainties(coverageReport, retrievalResults) {
    const requirementNotes = [
        ...coverageReport.requirements_uncovered.map((item) => `uncovered:${item}`),
        ...coverageReport.requirements_partially_covered.map((item) => `partial:${item}`),
        ...coverageReport.clarification_needed_for.map((item) => `clarify:${item}`),
        ...coverageReport.out_of_scope_requirements.map((item) => `out_of_scope:${item}`)
    ];
    const limitationNotes = retrievalResults.flatMap((result) => result.limitations).slice(0, 6);
    return capStrings([...requirementNotes, ...limitationNotes], stage1Contracts_1.INVESTIGATION_MAX_UNCERTAINTIES);
}
function normalizeEntityBacklinks(values) {
    const result = [];
    const seen = new Set();
    for (const item of values) {
        const entity = String(item.entity ?? "").trim();
        const id = String(item.id ?? "").trim();
        if (!entity || !id) {
            continue;
        }
        const key = `${entity}::${id}`;
        if (seen.has(key)) {
            continue;
        }
        seen.add(key);
        result.push({
            entity,
            id
        });
    }
    return result;
}
function collectProblemUnits(retrievalResults) {
    return retrievalResults.flatMap((result) => result.problem_units ?? []);
}
function capProblemUnitState(state) {
    return {
        active_problem_units: capStrings(state.active_problem_units, stage2ProblemUnits_1.INVESTIGATION_MAX_ACTIVE_PROBLEM_UNITS),
        resolved_problem_units: capStrings(state.resolved_problem_units, stage2ProblemUnits_1.INVESTIGATION_MAX_RESOLVED_PROBLEM_UNITS),
        problem_unit_backlinks: state.problem_unit_backlinks
            .map((item) => ({
            problem_unit_id: String(item.problem_unit_id ?? "").trim(),
            entity_backlinks: normalizeEntityBacklinks(item.entity_backlinks ?? [])
        }))
            .filter((item) => Boolean(item.problem_unit_id) && item.entity_backlinks.length > 0)
            .slice(0, stage2ProblemUnits_1.INVESTIGATION_MAX_PROBLEM_UNIT_BACKLINKS),
        focus_problem_types: capStrings(state.focus_problem_types.map((item) => String(item)), stage2ProblemUnits_1.INVESTIGATION_MAX_FOCUS_PROBLEM_TYPES)
    };
}
function updateProblemUnitState(previous, retrievalResults) {
    const previousState = previous.problem_unit_state;
    const currentProblemUnits = collectProblemUnits(retrievalResults);
    const currentIds = capStrings(currentProblemUnits.map((item) => String(item.problem_unit_id ?? "")), stage2ProblemUnits_1.INVESTIGATION_MAX_ACTIVE_PROBLEM_UNITS);
    const currentTypes = capStrings(currentProblemUnits.map((item) => String(item.problem_unit_type ?? "")), stage2ProblemUnits_1.INVESTIGATION_MAX_FOCUS_PROBLEM_TYPES);
    const currentBacklinksRaw = currentProblemUnits
        .filter((item) => currentIds.includes(item.problem_unit_id))
        .map((item) => ({
        problem_unit_id: item.problem_unit_id,
        entity_backlinks: normalizeEntityBacklinks(item.entity_backlinks ?? [])
    }))
        .filter((item) => item.entity_backlinks.length > 0);
    const currentBacklinksById = new Map(currentBacklinksRaw.map((item) => [item.problem_unit_id, item.entity_backlinks]));
    const previousBacklinksById = new Map((previousState?.problem_unit_backlinks ?? []).map((item) => [item.problem_unit_id, item.entity_backlinks]));
    const active_problem_units = currentIds.length > 0
        ? currentIds
        : capStrings(previousState?.active_problem_units ?? [], stage2ProblemUnits_1.INVESTIGATION_MAX_ACTIVE_PROBLEM_UNITS);
    const resolved_problem_units = currentIds.length > 0
        ? capStrings([
            ...(previousState?.active_problem_units ?? []).filter((item) => !currentIds.includes(item)),
            ...(previousState?.resolved_problem_units ?? [])
        ], stage2ProblemUnits_1.INVESTIGATION_MAX_RESOLVED_PROBLEM_UNITS)
        : capStrings(previousState?.resolved_problem_units ?? [], stage2ProblemUnits_1.INVESTIGATION_MAX_RESOLVED_PROBLEM_UNITS);
    const problem_unit_backlinks = active_problem_units
        .map((problemUnitId) => {
        const entity_backlinks = normalizeEntityBacklinks(currentBacklinksById.get(problemUnitId) ?? previousBacklinksById.get(problemUnitId) ?? []);
        if (entity_backlinks.length === 0) {
            return null;
        }
        return {
            problem_unit_id: problemUnitId,
            entity_backlinks
        };
    })
        .filter((item) => item !== null)
        .slice(0, stage2ProblemUnits_1.INVESTIGATION_MAX_PROBLEM_UNIT_BACKLINKS);
    const focus_problem_types = currentTypes.length > 0
        ? currentTypes
        : capStrings((previousState?.focus_problem_types ?? []).map((item) => String(item)), stage2ProblemUnits_1.INVESTIGATION_MAX_FOCUS_PROBLEM_TYPES);
    const nextState = capProblemUnitState({
        active_problem_units,
        resolved_problem_units,
        problem_unit_backlinks,
        focus_problem_types
    });
    if (nextState.active_problem_units.length === 0 &&
        nextState.resolved_problem_units.length === 0 &&
        nextState.problem_unit_backlinks.length === 0 &&
        nextState.focus_problem_types.length === 0) {
        return undefined;
    }
    return nextState;
}
function cloneInvestigationState(state) {
    if (!state)
        return null;
    const cloned = {
        ...state,
        focus: {
            ...state.focus,
            primary_accounts: [...state.focus.primary_accounts]
        },
        evidence_refs: [...state.evidence_refs],
        open_uncertainties: [...state.open_uncertainties],
        followup_context: state.followup_context
            ? {
                ...state.followup_context,
                referenced_requirement_ids: [...state.followup_context.referenced_requirement_ids]
            }
            : null
    };
    if (state.problem_unit_state) {
        cloned.problem_unit_state = capProblemUnitState({
            active_problem_units: [...state.problem_unit_state.active_problem_units],
            resolved_problem_units: [...state.problem_unit_state.resolved_problem_units],
            problem_unit_backlinks: state.problem_unit_state.problem_unit_backlinks.map((item) => ({
                problem_unit_id: item.problem_unit_id,
                entity_backlinks: [...item.entity_backlinks]
            })),
            focus_problem_types: [...state.problem_unit_state.focus_problem_types]
        });
    }
    return cloned;
}
function createEmptyInvestigationState(sessionId, timestamp = new Date().toISOString()) {
    return {
        schema_version: stage1Contracts_1.INVESTIGATION_STATE_SCHEMA_VERSION,
        session_id: sessionId,
        status: "idle",
        turn_index: 0,
        updated_at: timestamp,
        question_id: null,
        focus: {
            domain: null,
            period: null,
            primary_accounts: [],
            active_query_subject: null
        },
        narrowing_status: "unknown",
        evidence_refs: [],
        open_uncertainties: [],
        last_answer_mode: null,
        followup_context: null,
        query_mode_hint: "direct_answer"
    };
}
function updateInvestigationState(input) {
    const previous = input.previous;
    const focusFromMessage = capStrings(detectAccounts(input.userMessage), stage1Contracts_1.INVESTIGATION_MAX_PRIMARY_ACCOUNTS);
    const requirementIds = capStrings(input.requirements.map((item) => item.requirement_id), stage1Contracts_1.INVESTIGATION_MAX_REQUIREMENT_LINKS);
    const mainRequirement = input.requirements[0]?.requirement_text ?? input.userMessage;
    const problemUnitState = updateProblemUnitState(previous, input.retrievalResults);
    return {
        schema_version: stage1Contracts_1.INVESTIGATION_STATE_SCHEMA_VERSION,
        session_id: previous.session_id,
        status: "active",
        turn_index: previous.turn_index + 1,
        updated_at: input.timestamp,
        question_id: input.questionId,
        focus: {
            domain: deriveDomain(input.routeSummary) ?? previous.focus.domain,
            period: detectPeriod(input.userMessage) ?? previous.focus.period,
            primary_accounts: capStrings([...focusFromMessage, ...previous.focus.primary_accounts], stage1Contracts_1.INVESTIGATION_MAX_PRIMARY_ACCOUNTS),
            active_query_subject: mainRequirement.slice(0, 180)
        },
        narrowing_status: deriveNarrowingStatus(input.routeSummary, input.coverageReport),
        evidence_refs: capStrings([...collectEvidenceRefs(input.retrievalResults), ...previous.evidence_refs], stage1Contracts_1.INVESTIGATION_MAX_EVIDENCE_REFS),
        open_uncertainties: collectOpenUncertainties(input.coverageReport, input.retrievalResults),
        last_answer_mode: input.replyType,
        followup_context: {
            previous_question_id: previous.question_id,
            last_user_message: input.userMessage.slice(0, 240),
            referenced_requirement_ids: requirementIds
        },
        query_mode_hint: deriveQueryModeHint(input.routeSummary),
        ...(problemUnitState
            ? {
                problem_unit_state: problemUnitState
            }
            : {})
    };
}