import { z } from "zod";

const nonEmptyTextSchema = z.string().trim().min(1);

export const legacyFindingItemSchema = z.object({
  section: z.string(),
  finding: z.string(),
  suggestion: z.string(),
});

export const v3FindingItemSchema = z.object({
  skill_id: nonEmptyTextSchema,
  observation: nonEmptyTextSchema,
  customer_benefit: nonEmptyTextSchema,
  public_phrasing: nonEmptyTextSchema,
  severity: z.union([z.literal(1), z.literal(2), z.literal(3)]),
  evidence: nonEmptyTextSchema,
  applies: z.boolean(),
});

export const findingItemSchema = legacyFindingItemSchema;

export const auditFindingEvidenceRefSchema = z.object({
  id: nonEmptyTextSchema,
  type: z.enum([
    "crawl_page",
    "technical_check",
    "screenshot",
    "pagespeed",
    "jina_excerpt",
    "generation_stage",
  ]),
  label: nonEmptyTextSchema,
  sourceUrl: z.string().trim(),
});

export const auditSpecialistFindingSchema = z
  .object({
    skillId: nonEmptyTextSchema,
    claim: nonEmptyTextSchema,
    recommendation: nonEmptyTextSchema,
    customerBenefit: nonEmptyTextSchema,
    severity: z.union([z.literal(1), z.literal(2), z.literal(3)]),
    confidence: z.number().min(0).max(1),
    evidenceRefs: z.array(auditFindingEvidenceRefSchema).min(1),
    applies: z.boolean(),
    unknowns: z.array(z.string()),
  })
  .superRefine((finding, ctx) => {
    const combined = [
      finding.claim,
      finding.recommendation,
      finding.customerBenefit,
    ].join(" ");
    if (/\bunbekannt\b|\bunknown\b/i.test(combined)) {
      ctx.addIssue({
        code: z.ZodIssueCode.custom,
        message: "unknown-only findings are not valid audit claims",
        path: ["claim"],
      });
    }
  });

export const auditSpecialistResultSchema = z.object({
  status: z.enum(["success", "partial", "skipped", "failed"]),
  findings: z.array(auditSpecialistFindingSchema),
  notes: z.array(z.string()),
});

export const auditRejectedFindingSchema = z.object({
  findingId: nonEmptyTextSchema,
  skillId: nonEmptyTextSchema,
  claim: nonEmptyTextSchema,
  rejectionReason: nonEmptyTextSchema,
});

export const auditEvidenceVerificationSchema = z.object({
  verifiedFindingIds: z.array(nonEmptyTextSchema),
  rejectedFindings: z.array(auditRejectedFindingSchema),
  contradictions: z.array(z.string()),
  notes: z.array(z.string()),
});

export const internalFindingsSchema = z.object({
  findings: z.array(findingItemSchema),
  summary: z.string(),
});

export const auditClassificationSchema = z.object({
  findings: z.array(v3FindingItemSchema).min(1),
  summary: nonEmptyTextSchema,
  usedSkills: z.array(nonEmptyTextSchema).nullable(),
});

export const auditGenerationResultSchema = z.object({
  findings: z.array(v3FindingItemSchema).min(1),
  usedSkills: z.array(nonEmptyTextSchema).min(1),
  publicAuditText: nonEmptyTextSchema,
  finalSummary: nonEmptyTextSchema,
  emailSubject: nonEmptyTextSchema,
  emailBody: nonEmptyTextSchema,
  phoneScript: nonEmptyTextSchema,
  ctaType: z.enum(["anruf", "termin", "rueckruf"]),
});

export const auditSummarySchema = z.object({
  summary: z.string(),
  keyFindings: z.array(z.string()),
});

export const publicAuditTextSchema = z.object({
  publicText: z.string(),
});

export const emailDraftSchema = z.object({
  body: z.string(),
});

export const emailSubjectSchema = z.object({
  subject: z.string(),
});

export const callScriptSchema = z.object({
  openingLine: z.string(),
  callScript: z.array(z.string()),
  closeLine: z.string(),
});

export const followUpDraftSchema = z.object({
  message: z.string(),
  followInDays: z.number().int().min(0).nullable(),
  goals: z.array(z.string()).nullable(),
});

export const qualityReviewSchema = z.object({
  isValid: z.boolean(),
  issues: z.array(z.string()),
  suggestions: z.array(z.string()),
  notes: z.array(z.string()).nullable(),
});

export type FindingItem = z.infer<typeof findingItemSchema>;
export type V3FindingItem = z.infer<typeof v3FindingItemSchema>;
export type AuditFindingEvidenceRef = z.infer<typeof auditFindingEvidenceRefSchema>;
export type AuditSpecialistFinding = z.infer<typeof auditSpecialistFindingSchema>;
export type AuditSpecialistResult = z.infer<typeof auditSpecialistResultSchema>;
export type AuditEvidenceVerification = z.infer<typeof auditEvidenceVerificationSchema>;
export type InternalFindings = z.infer<typeof internalFindingsSchema>;
export type AuditClassification = z.infer<typeof auditClassificationSchema>;
export type AuditGenerationResult = z.infer<typeof auditGenerationResultSchema>;
export type AuditSummary = z.infer<typeof auditSummarySchema>;
export type PublicAuditText = z.infer<typeof publicAuditTextSchema>;
export type EmailDraft = z.infer<typeof emailDraftSchema>;
export type EmailSubject = z.infer<typeof emailSubjectSchema>;
export type CallScript = z.infer<typeof callScriptSchema>;
export type FollowUpDraft = z.infer<typeof followUpDraftSchema>;
export type QualityReview = z.infer<typeof qualityReviewSchema>;