export const analysisArrayFields = ['qualificationCriteria','criticalRequirements','risksAndPenalties','disqualificationRisks','criticalDetails','itemsAndSpecs','documentChecklist','deadlines','costDrivers','roadmap','questionsForAdministration'];
const stringLists = new Set(['qualificationCriteria','criticalRequirements','disqualificationRisks','costDrivers','questionsForAdministration']);
const shapes = {
  itemsAndSpecs: ['name','quantity','note'], documentChecklist: ['document','note'],
  risksAndPenalties: ['level','clause','text'], criticalDetails: ['level','title','where','detail','whyItMatters'],
  deadlines: ['label','value','note'], roadmap: ['phase','action','owner','timing','output'],
};
const object = v => v && typeof v === 'object' && !Array.isArray(v);
const fail = path => { throw new Error(`Analiz alanının biçimi geçersiz: ${path}`); };
const text = (v,path) => { if (v != null && typeof v !== 'string') fail(path); };
const number = (v,path) => { if (v != null && (typeof v !== 'number' || !Number.isFinite(v) || v < 0)) fail(path); };

export function validateAnalysisShape(result) {
  if (!object(result)) fail('result');
  const issues = [];
  for (const field of ['summary','scopeOfWork']) text(result[field],field);
  for (const field of analysisArrayFields) {
    if (result[field] == null) continue;
    if (!Array.isArray(result[field])) fail(field);
    result[field].forEach((row,i) => {
      const path = `${field}.${i}`;
      if (stringLists.has(field)) { if (typeof row !== 'string' || !row.trim()) fail(path); return; }
      if (!object(row)) fail(path);
      for (const key of shapes[field]) text(row[key],`${path}.${key}`);
      if (field === 'itemsAndSpecs') {
        if (!row.name?.trim() || !row.quantity?.trim()) issues.push(`${path}: kalem adı veya miktar/birim eksik.`);
        if (row.keySpecs != null && (!Array.isArray(row.keySpecs) || row.keySpecs.some(v => typeof v !== 'string'))) fail(`${path}.keySpecs`);
        for (const key of ['estimatedUnitPrice','estimatedTotal']) number(row[key],`${path}.${key}`);
      }
      if (field === 'documentChecklist') {
        if (!row.document?.trim() || row.mandatory == null) issues.push(`${path}: belge adı veya zorunluluk bilgisi eksik.`);
        if (row.mandatory != null && typeof row.mandatory !== 'boolean') fail(`${path}.mandatory`);
      }
      if (field === 'roadmap' && row.step != null && (!Number.isInteger(row.step) || row.step < 1)) fail(`${path}.step`);
    });
  }
  if (result.bidAnalysis != null) {
    if (!object(result.bidAnalysis)) fail('bidAnalysis');
    for (const key of ['estimatedCost','recommendedBid','minBidLimit','maxBidLimit','winProbability']) number(result.bidAnalysis[key],`bidAnalysis.${key}`);
    if (result.bidAnalysis.winProbability > 100) fail('bidAnalysis.winProbability');
    for (const key of ['competitionLevel','notes']) text(result.bidAnalysis[key],`bidAnalysis.${key}`);
  }
  if (result.citations != null) {
    if (!Array.isArray(result.citations)) fail('citations');
    result.citations.forEach((c,i) => {
      if (!object(c) || typeof c.path !== 'string' || typeof c.quote !== 'string') fail(`citations.${i}`);
    });
  }
  return issues;
}