"use strict";
/**
 * Post-planning gap analysis (#2493).
 *
 * Reads REQUIREMENTS.md (planning-root) and CONTEXT.md (per-phase) and compares
 * each REQ-ID and D-ID against the concatenated text of all PLAN.md files in
 * the phase directory. Emits a unified `Source | Item | Status` report.
 *
 * Gated on workflow.post_planning_gaps (default true). When false, returns
 * { enabled: false } and does not scan.
 *
 * Coverage detection uses word-boundary regex matching to avoid false positives
 * (REQ-1 must not match REQ-10).
 *
 * ADR-457 build-at-publish: the hand-written bin/lib/gap-checker.cjs collapsed
 * to a TypeScript source of truth. Behaviour is preserved byte-for-behaviour
 * from the prior hand-written .cjs; only strict types are added.
 */
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
const node_fs_1 = __importDefault(require("node:fs"));
const node_path_1 = __importDefault(require("node:path"));
// eslint-disable-next-line @typescript-eslint/no-require-imports
const io = require("./io.cjs");
const { output, error } = io;
// eslint-disable-next-line @typescript-eslint/no-require-imports
const phaseId = require("./phase-id.cjs");
const { escapeRegex } = phaseId;
// eslint-disable-next-line @typescript-eslint/no-require-imports
const planningWorkspace = require("./planning-workspace.cjs");
const { planningPaths, planningDir, findContextMdIn } = planningWorkspace;
const decisions_cjs_1 = require("./decisions.cjs");
/**
 * Parse REQ-IDs from REQUIREMENTS.md content.
 *
 * Supports both checkbox (`- [ ] **REQ-NN** ...`) and traceability table
 * (`| REQ-NN | ... |`) formats.
 */
function parseRequirements(reqMd) {
    if (!reqMd || typeof reqMd !== 'string')
        return [];
    const out = [];
    const seen = new Set();
    // Prefix-agnostic ID format: REQ-01, TST-01, BACK-07, INSP-04, etc.
    const ID_PATTERN = '[A-Z][A-Z0-9]*-[A-Za-z0-9_-]+';
    const checkboxRe = new RegExp(`^\\s*-\\s*\\[[x ]\\]\\s*\\*\\*(${ID_PATTERN})\\*\\*\\s*(.*)$`, 'gm');
    let cm = checkboxRe.exec(reqMd);
    while (cm !== null) {
        const id = cm[1];
        if (!seen.has(id)) {
            seen.add(id);
            out.push({ id, text: (cm[2] || '').trim() });
        }
        cm = checkboxRe.exec(reqMd);
    }
    const tableFirstCellRe = new RegExp(`^\\s*\\|\\s*(${ID_PATTERN})\\s*\\|`);
    const separatorRowRe = /^\s*\|[\s:|-]+\|\s*$/;
    const lines = reqMd.split(/\r?\n/);
    for (let i = 0; i < lines.length; i += 1) {
        const line = lines[i];
        if (!line.includes('|'))
            continue;
        // Skip markdown table separator rows and header rows immediately preceding them.
        if (separatorRowRe.test(line))
            continue;
        if (i + 1 < lines.length && separatorRowRe.test(lines[i + 1]))
            continue;
        const tm = tableFirstCellRe.exec(line);
        if (!tm)
            continue;
        const id = tm[1];
        if (!seen.has(id)) {
            seen.add(id);
            out.push({ id, text: '' });
        }
    }
    return out;
}
function detectCoverage(items, planText) {
    return items.map(it => {
        const re = new RegExp('\\b' + escapeRegex(it.id) + '\\b');
        return {
            source: it.source,
            item: it.id,
            status: re.test(planText) ? 'Covered' : 'Not covered',
        };
    });
}
function naturalKey(s) {
    return String(s).replace(/(\d+)/g, (_, n) => n.padStart(8, '0'));
}
function sortRows(rows) {
    const sourceOrder = { 'REQUIREMENTS.md': 0, 'CONTEXT.md': 1 };
    return rows.slice().sort((a, b) => {
        const so = (sourceOrder[a.source] ?? 99) - (sourceOrder[b.source] ?? 99);
        if (so !== 0)
            return so;
        return naturalKey(a.item).localeCompare(naturalKey(b.item));
    });
}
function formatGapTable(rows) {
    if (rows.length === 0) {
        return '## Post-Planning Gap Analysis\n\nNo requirements or decisions to check.\n';
    }
    const header = '| Source | Item | Status |\n|--------|------|--------|';
    const body = rows.map(r => {
        const tick = r.status === 'Covered' ? '✓ Covered'
            : r.status === 'Missing from REQUIREMENTS.md' ? '⚠ Missing from REQUIREMENTS.md'
                : '✗ Not covered';
        return `| ${r.source} | ${r.item} | ${tick} |`;
    }).join('\n');
    return `## Post-Planning Gap Analysis\n\n${header}\n${body}\n`;
}
function readGate(cwd) {
    const cfgPath = node_path_1.default.join(planningDir(cwd), 'config.json');
    try {
        const raw = JSON.parse(node_fs_1.default.readFileSync(cfgPath, 'utf-8'));
        if (raw && typeof raw === 'object' && 'workflow' in raw) {
            const wf = raw['workflow'];
            if (wf && typeof wf === 'object' && 'post_planning_gaps' in wf) {
                const val = wf['post_planning_gaps'];
                if (typeof val === 'boolean')
                    return val;
            }
        }
    }
    catch { /* fall through */ }
    return true;
}
/**
 * Normalize a raw `--phase-req-ids` argument into the scoping signal used by
 * runGapAnalysis (#447). Mirrors §13's null/TBD skip semantics.
 *
 *   undefined           → flag absent: compare the whole REQUIREMENTS.md (back-compat)
 *   null | '' | TBD     → no requirements mapped to this phase: skip the comparison
 *   "REQ-01,REQ-02"     → restrict the comparison to these IDs
 *
 * Tolerates JSON-array-ish input (`["REQ-01","REQ-02"]`) since callers may pass
 * the roadmap value through verbatim.
 */
function normalizePhaseReqIds(rawVal) {
    if (rawVal === undefined)
        return undefined;
    if (rawVal === null)
        return null;
    // eslint-disable-next-line @typescript-eslint/no-base-to-string
    const v = String(rawVal).replace(/["'[\]()]/g, '').trim();
    if (v === '' || /^(null|tbd|none)$/i.test(v))
        return null;
    // Tolerate comma-, space-, or newline-separated lists (callers may pass the
    // roadmap value verbatim, whose serialization is not guaranteed).
    const ids = v.split(/[\s,]+/).map(s => s.trim()).filter(Boolean);
    return ids.length === 0 ? null : ids;
}
function runGapAnalysis(cwd, phaseDir, options = {}) {
    const phaseReqIds = normalizePhaseReqIds(options.phaseReqIds);
    if (!readGate(cwd)) {
        return {
            enabled: false,
            rows: [],
            table: '',
            summary: 'workflow.post_planning_gaps disabled — skipping post-planning gap analysis',
            counts: { total: 0, covered: 0, uncovered: 0 },
        };
    }
    const absPhaseDir = node_path_1.default.isAbsolute(phaseDir) ? phaseDir : node_path_1.default.join(cwd, phaseDir);
    const reqPath = planningPaths(cwd).requirements;
    const reqMd = node_fs_1.default.existsSync(reqPath) ? node_fs_1.default.readFileSync(reqPath, 'utf-8') : '';
    let reqItems = parseRequirements(reqMd).map(r => ({ ...r, source: 'REQUIREMENTS.md' }));
    // Scope the requirements comparison to the phase's mapped REQ-IDs (#447).
    // A phase that maps no requirements (phase_req_ids null/TBD) must not report
    // every unrelated project REQ-ID as a gap — mirror §13's skip behavior.
    // CONTEXT.md decisions (below) are always in scope regardless.
    let ghostReqIds = [];
    if (phaseReqIds === null) {
        reqItems = [];
    }
    else if (Array.isArray(phaseReqIds)) {
        const wanted = new Set(phaseReqIds);
        const foundIds = new Set(reqItems.map(r => r.id));
        reqItems = reqItems.filter(r => wanted.has(r.id));
        ghostReqIds = phaseReqIds.filter(id => !foundIds.has(id));
    }
    // Read the phase directory once; reuse the listing for both context detection
    // and plan-file enumeration (avoids redundant readdirSync calls).
    let phaseDirFiles = [];
    try {
        if (node_fs_1.default.existsSync(absPhaseDir))
            phaseDirFiles = node_fs_1.default.readdirSync(absPhaseDir);
    }
    catch { /* unreadable */ }
    const ctxFile = findContextMdIn(phaseDirFiles);
    const ctxPath = ctxFile ? node_path_1.default.join(absPhaseDir, ctxFile) : null;
    const ctxMd = ctxPath ? node_fs_1.default.readFileSync(ctxPath, 'utf-8') : '';
    const dItems = (0, decisions_cjs_1.parseDecisions)(ctxMd).map(d => ({ ...d, source: 'CONTEXT.md' }));
    const items = [...reqItems, ...dItems];
    let planText = '';
    try {
        if (phaseDirFiles.length > 0) {
            const files = phaseDirFiles.filter(f => /-PLAN\.md$/.test(f));
            planText = files.map(f => {
                try {
                    return node_fs_1.default.readFileSync(node_path_1.default.join(absPhaseDir, f), 'utf-8');
                }
                catch {
                    return '';
                }
            }).join('\n');
        }
    }
    catch { /* unreadable */ }
    if (items.length === 0) {
        return {
            enabled: true,
            rows: [],
            table: '## Post-Planning Gap Analysis\n\nNo requirements or decisions to check.\n',
            summary: 'no requirements or decisions to check',
            counts: { total: 0, covered: 0, uncovered: 0 },
        };
    }
    const rows = sortRows([
        ...detectCoverage(items, planText),
        ...ghostReqIds.map(id => ({ source: 'REQUIREMENTS.md', item: id, status: 'Missing from REQUIREMENTS.md' })),
    ]);
    const covered = rows.filter(r => r.status === 'Covered').length;
    const uncovered = rows.length - covered;
    const summary = uncovered === 0
        ? `✓ All ${rows.length} items covered by plans`
        : `⚠ ${uncovered} of ${rows.length} items not covered by any plan`;
    return {
        enabled: true,
        rows,
        table: formatGapTable(rows) + '\n' + summary + '\n',
        summary,
        counts: { total: rows.length, covered, uncovered },
    };
}
function cmdGapAnalysis(cwd, args, raw) {
    const idx = args.indexOf('--phase-dir');
    if (idx === -1 || !args[idx + 1]) {
        error('Usage: gap-analysis --phase-dir <path-to-phase-directory>');
    }
    const phaseDir = args[idx + 1];
    // Optional --phase-req-ids scopes the requirements comparison (#447).
    // Absent → compare the whole REQUIREMENTS.md (back-compat).
    const reqIdx = args.indexOf('--phase-req-ids');
    const phaseReqIds = reqIdx === -1 ? undefined : (args[reqIdx + 1] ?? '');
    const result = runGapAnalysis(cwd, phaseDir, { phaseReqIds });
    output(result, raw, result.table || result.summary);
}
module.exports = {
    parseRequirements,
    detectCoverage,
    formatGapTable,
    sortRows,
    normalizePhaseReqIds,
    runGapAnalysis,
    cmdGapAnalysis,
};