export type FieldStatus = "confirmed" | "needs_review" | "flagged";

// One project ("repo") a team labels: a dataset scoped to its own worklist. Served by
// GET /api/projects; an admin creates one through POST /api/projects.
export interface Project {
  project_id: string;
  name: string;
  case_count: number;
}

// GET /api/projects: every project, plus the id the app opens when the reviewer has chosen none.
export interface ProjectList {
  projects: Project[];
  default: string;
}

// One row of GET /api/fields, mirroring endopath.fields.FieldSpec. `enum_values`
// is non-null for the fields whose value is drawn from a closed vocabulary, so
// the edit path can render a dropdown rather than a free-text box.
export interface FieldSpec {
  name: string;
  label: string;
  value_type: "string" | "number" | "boolean";
  enum_values: string[] | null;
}

export type CaseStatus =
  | "queued"
  | "processing"
  | "ready_for_review"
  | "in_review"
  | "confirmed"
  | "exported"
  | "flagged";

export interface EvidenceSpan {
  quote: string;
  char_start: number | null;
  char_end: number | null;
  page_number: number | null;
  source: string;
}

export interface ChecklistField {
  value: unknown;
  confidence: number | null;
  evidence: EvidenceSpan | null;
  status: FieldStatus;
  applicable: boolean;
  not_applicable_reason: string | null;
  search_log: string[];
}

export interface WorklistRow {
  case_barcode: string;
  patient_filename: string | null;
  status: CaseStatus;
}

// One field a reviewer routed to the licensed account's queue (#161).
export interface Escalation {
  case_barcode: string;
  field_name: string;
  value: unknown;
  escalated_by: string;
  role: string;
  note: string | null;
  escalated_at: string;
}

// One recorded LLM call (#221): metadata only, no prompt or response text. `model` is what the call site
// requested; `response_model` is what the API says handled it; `request_id` is the Anthropic-issued id.
export interface ModelCall {
  id: string;
  provider: string;
  model: string | null;
  response_model: string | null;
  request_id: string | null;
  input_tokens: number | null;
  output_tokens: number | null;
  cache_creation_input_tokens: number | null;
  cache_read_input_tokens: number | null;
  latency_ms: number | null;
  context: string | null;
  created_at: string;
}

export interface TraceSummary {
  call_count: number;
  input_tokens: number;
  output_tokens: number;
  cache_creation_input_tokens: number;
  cache_read_input_tokens: number;
  models: string[];
  providers: string[];
  mean_latency_ms: number | null;
}

export interface TraceResponse {
  calls: ModelCall[];
  summary: TraceSummary;
}

// Field coverage (#237): a project's record types and its target-dictionary fields, DB-backed. `source`
// is the record type that fulfils the field; `fill` names how its live confirmed fill is measured.
export interface CoverageRecordType {
  record_type_id: string;
  name: string;
  source_class: string;
  blurb: string | null;
}

export interface CoverageField {
  name: string;
  label: string;
  section: string | null;
  source: string;
  fill: { via: "checklist" | "outcome"; key: string } | null;
}

export interface CoverageExtraction {
  case: string;
  field: string;
  value: string;
  evidence: string | null;
}

export interface CoverageResponse {
  dictionary_id: string;
  record_types: CoverageRecordType[];
  fields: CoverageField[];
  // record_type_id -> its populated sample extractions (the extracted dictionary in action).
  extractions: Record<string, CoverageExtraction[]>;
}

export interface CaseDetail {
  case_barcode: string;
  patient_filename: string | null;
  report_date: string | null;
  staging_edition: string;
  status: CaseStatus;
  page_count: number;
  fields: Record<string, ChecklistField>;
}

export interface VisualEvidence {
  evidence: EvidenceSpan;
  score: number;
}

// A selectable text source (issue #90): how the ingest path reads a report.
export interface TextSourceOption {
  id: string;
  label: string;
}

// One variable of a target data dictionary. `permitted_values` is null for an
// open vocabulary; `licence_required` marks a variable a licence gates.
export interface DictionaryVariable {
  name: string;
  label: string | null;
  permitted_values: string[] | null;
  licence_required: boolean;
}

export interface DataDictionary {
  id: string;
  title: string;
  variables: DictionaryVariable[];
}

export type ReportSourceKind = "prepared_corpus" | "folder";

export interface IngestionRunRequest {
  source: { kind: ReportSourceKind; folder_path?: string | null };
  dictionary?: DataDictionary | null;
  text_source?: string | null;
}

// One enqueued follow-up job: report induction (#92) or dictionary
// compilation (#91). The worker moves status enqueued -> running -> done or
// failed, stamping started_at, finished_at, and any error as it drains it.
export interface IngestionJob {
  id: string;
  kind: string;
  ticket: string;
  status: string;
  dictionary_id: string;
  source_kind: string;
  case_count: number;
  variable_count: number;
  error?: string | null;
  created_at: string;
  started_at?: string | null;
  finished_at?: string | null;
}

// A dictionary a reviewer can open on the mapping screen (#109): the built-in
// CAP checklist, or a submitted one, flagged with whether its crosswalk has been
// drafted yet.
export interface DictionaryOption {
  id: string;
  title: string;
  builtin: boolean;
  ready: boolean;
}

export interface IngestionRunResult {
  ingested: number;
  failures: number;
  seeded: { queued: number; flagged: number };
  source: { kind: ReportSourceKind; folder_path?: string | null };
  text_source: TextSourceOption;
  dictionary: {
    id: string;
    title: string;
    variable_count: number;
    licence_required_variables: string[];
  };
  enqueued: IngestionJob[];
}

export interface FieldSummary {
  field_name: string;
  total: number;
  confirmed: number;
  needs_review: number;
  flagged: number;
  avg_confidence: number | null;
}

// The cohort dashboard (#100, prd.md sections 8.1, 4.3, 4.5, 4.7). Beyond the completion summary it
// carries, per field, the confirmed-value and coded-absence-reason distributions as distinct series, the
// absence-versus-grade association, and, per case, the absent variables a re-review would order slides to
// recover. The coded reasons come from the section 4.3 vocabulary (AbsentReason).

export interface ValueCount {
  value: string;
  count: number;
}

export interface AbsenceCount {
  reason: AbsentReason;
  count: number;
}

// One stratum of the absence-versus-grade contingency: how many cases carry the field present versus
// coded-absent within that FIGO-grade band.
export interface AssociationRow {
  stratum: string;
  present: number;
  absent: number;
  total: number;
  absent_rate: number;
}

// Whether a field's absence tracks the grade stratum (prd.md section 4.5). `signal` fires when the
// absence concentrates in one known stratum beyond the other; `detail` names it.
export interface FieldAssociation {
  stratifier: string;
  rows: AssociationRow[];
  signal: boolean;
  detail: string | null;
}

// One parsed component of a reported stage (T / N / M), as its own distribution (#165 follow-on), so the
// tile can separate the combined-string "tabs" beside the folded FIGO stage.
export interface FieldComponentDistribution {
  dimension: string;
  values: ValueCount[];
}

export interface FieldDistribution {
  field_name: string;
  label: string;
  // The JSON-schema type of the field's value: "number"/"integer" render as a histogram, everything
  // else as a categorical bar chart (#100).
  value_type: string;
  confirmed: number;
  pending: number;
  absent: number;
  total: number;
  values: ValueCount[];
  absence: AbsenceCount[];
  association: FieldAssociation;
  // Parsed sub-distributions (T/N/M for the reported stage); empty for every other field.
  components: FieldComponentDistribution[];
}

export interface RequiresSlidesVariable {
  field_name: string;
  label: string;
}

// One case's slide order (prd.md section 4.7): the absent variables recovered from the glass slides, the
// ones filled by a join instead, and the FIGO 2023 determinability verdict (#35) for context.
export interface RequiresSlidesCase {
  case_barcode: string;
  verdict: string | null;
  // Whether the verdict rests only on confirmed values or on at least one unreviewed model draft (#224), so
  // a draft-based projection renders provisional rather than as established fact.
  verdict_basis: "confirmed" | "draft" | null;
  stage: string | null;
  variables: RequiresSlidesVariable[];
  count: number;
  join_variables: RequiresSlidesVariable[];
}

export interface DashboardStratifier {
  field_name: string;
  label: string;
  strata: string[];
}

export interface DashboardSummary {
  total_cases: number;
  done_cases: number;
  completion_rate: number;
  fields: FieldSummary[];
  absence_vocabulary: AbsentReason[];
  stratifier: DashboardStratifier;
  field_distributions: FieldDistribution[];
  requires_slides: RequiresSlidesCase[];
  requires_slides_case_count: number;
}

export interface ProvenanceRow {
  case_barcode: string;
  field_name: string;
  value: unknown;
  confidence: number | null;
  status: FieldStatus;
  applicable: boolean;
  not_applicable_reason: string | null;
  evidence_quote: string | null;
  evidence_page: number | null;
  evidence_source: string | null;
}

// The cohort export (#101, prd.md sections 3, 8.1). The column spec is the
// canonical concept list (#91): one value column per concept, each paired with
// a parallel absent-reason column so an absent value carries a coded reason
// rather than a blank. The coded reasons come from prd.md section 4.3.
export type AbsentReason =
  | "not_applicable"
  | "not_stated"
  | "indeterminate"
  | "determined_by_join"
  | "constrained";

export type ExportColumnKind = "identifier" | "value" | "absent_reason";

export interface ExportColumn {
  key: string;
  label: string;
  kind: ExportColumnKind;
  // Value columns carry the concept metadata; absent-reason columns carry `of`.
  concept_id?: string;
  category?: string;
  assertion_type?: AssertionType;
  cardinality?: Cardinality;
  cited_to?: string;
  derived?: DerivedRule | null;
  absent_reason_key?: string;
  of?: string;
  // Set on the outcome columns joined from the GDC clinical record rather than read from the report (#176).
  sourced_via?: "join";
  join_source?: string;
  note?: string;
}

export interface ExportBundle {
  target_schema: { name: string; concept_count: number; schema_checksum: string };
  staging_edition: { selected: string; per_case_editions: string[] };
  generated_at: string;
  rule_versions: { dependency_graph_checksum: string; named_rules: string[] };
  model_versions: { extraction: string };
  coding_systems: { stage: string; value_sets: string };
  sources: { case_barcode: string; source_document: string | null; evidence_checksum: string }[];
  reproduction: string;
}

export interface ExportFile {
  filename: string;
  media_type: string;
  content?: string;
  content_base64?: string;
}

export interface ExportResult {
  columns: ExportColumn[];
  rows: Record<string, unknown>[];
  provenance: ProvenanceRow[];
  bundle: ExportBundle;
  files: { csv: ExportFile; json: ExportFile; xlsx: ExportFile };
}

// A FIGO edition the Export target-schema selector offers (#40), from GET /api/staging_editions.
export interface StagingEditionOption {
  id: string;
  label: string;
}

// One case's projected FIGO stage under a chosen edition (#40), carried on the export row under
// `figo_stage__projection`. A determined code, a constrained candidate set, or an indeterminate reason,
// each with its confidence and the derivation that produced it.
export interface StageProjection {
  kind: "determined" | "constrained" | "indeterminate";
  code?: string;
  modifier?: string | null;
  candidates?: string[];
  reason?: string;
  system_id?: string | null;
  confidence?: number | null;
  derivation?: { rule: string; edition: string; inputs: string[] };
}

// The registry browser (#94), served by GET /api/concepts. Its concept spine is
// mapping.concept_list() (#91) with the taxonomy registry (#35) joined on:
// evidence resolved from the citation, dependency relationships from the graph,
// and the decisions that name each concept.

export type AssertionType = "asserted" | "derived";
export type Cardinality = "exactly_one" | "zero_or_one" | "zero_or_more";
export type RuleKind = "formula" | "threshold" | "membership" | "algorithm";

export interface DerivedRule {
  inputs: string[];
  rule: string;
  rule_kind: RuleKind;
}

export interface ConceptSource {
  source_id: string;
  title: string | null;
  year: string | null;
  url: string | null;
  license: string | null;
}

// Resolved from the concept's `cited_to`. An extraction carries a page-anchored
// verbatim span and its source document; a doc_section is prose-only, the "open"
// evidence state (no value-level extraction row yet, #29).
export interface ConceptEvidence {
  kind: "extraction" | "doc_section" | "unresolved";
  cited_to: string;
  prose_only: boolean;
  doc_section?: string;
  extraction_id?: string;
  source_id?: string;
  page?: number | null;
  verbatim_text?: string | null;
  extracted_by?: string | null;
  note?: string | null;
  source?: ConceptSource | null;
}

export interface ConceptRef {
  concept_id: string;
  label: string;
  relation: string;
}

export interface ConceptRelationships {
  computed_from: ConceptRef[];
  feeds_into: ConceptRef[];
  gated_by: ConceptRef[];
  gates: ConceptRef[];
}

export interface ConceptDecision {
  decision_id: string;
  date: string | null;
  question: string | null;
  decision: string | null;
  rationale: string | null;
  decided_in: string | null;
}

// The SKOS predicate of a crosswalk edge, plus `conflict` for two standards that state
// disagreeing rules for the same question (#59, #85).
export type CrosswalkKind =
  | "exactMatch"
  | "broadMatch"
  | "narrowMatch"
  | "relatedMatch"
  | "noMatch"
  | "conflict";

// One end of a crosswalk edge: a standard's short name and the value's label.
export interface CrosswalkSide {
  standard: string;
  label: string;
}

// One cross-standard mapping for a concept's clinical dimension (#59), from crosswalk.csv. It reads
// as `<from.standard> <from.label>` -> `<to.standard> <to.label>` with a kind tag; `conflict` edges
// sort first and carry the rationale for the disagreement.
export interface CrosswalkEdge {
  from: CrosswalkSide;
  to: CrosswalkSide;
  kind: CrosswalkKind;
  certainty: "certain" | "uncertain";
  rationale: string;
}

export interface RegistryConcept {
  concept_id: string;
  category: string;
  label: string;
  assertion_type: AssertionType;
  cardinality: Cardinality;
  derived: DerivedRule | null;
  cited_to: string;
  evidence: ConceptEvidence;
  relationships: ConceptRelationships;
  decisions: ConceptDecision[];
  crosswalk: CrosswalkEdge[];
}

export interface RegistryCategory {
  id: string;
  concept_count: number;
  open_count: number;
}

export interface ConceptRegistry {
  categories: RegistryCategory[];
  concepts: RegistryConcept[];
}

// The crosswalk mapping-review surface (#95), served by GET /api/mapping. The
// edges are crosswalk.reference_crosswalk() (the committed CAP-checklist
// reference instance in the #93 edge contract), joined to concept labels and
// categories and to the confirmations a reviewer has recorded.

// One candidate resolution the maieutic loop offers for a queued edge, and that
// POST /api/mapping/confirm accepts. `concept_id` is null for an out-of-scope
// (unresolved) resolution.
export interface MappingResolutionCandidate {
  label: string;
  concept_id: string | null;
  relation: string;
  tradeoff: string;
}

// The maieutic draft for one queued edge: the question plus two candidates.
export interface MappingReviewDraft {
  question: string;
  candidates: MappingResolutionCandidate[];
}

// How a reviewer decided an edge (#103). `confirmed` resolves it; `flagged` and
// `deferred` park it as an open concern without resolving it.
export type MappingDisposition = "confirmed" | "flagged" | "deferred";

// How the confirmed answer was reached, for the decision ledger (#103).
export type MappingDecidedVia = "candidate" | "written" | "chat" | "flag" | "defer";

// Whether an edge reads as settled or needs the reviewer's judgment (#103),
// directed by field type and state rather than a confidence number.
export type MappingAttention = "confident" | "needs_judgment";

export interface MappingConfirmation {
  mapping_id: string;
  source_field: string;
  concept_id: string | null;
  relation: string;
  predicate: string;
  confirmed_by: string;
  role: string;
  note: string | null;
  licence_required: boolean;
  confirmed_at: string;
  disposition: MappingDisposition;
  decided_via: MappingDecidedVia | null;
  question: string | null;
  options_json: string | null;
}

// One drafted edge from a source field to a canonical concept. `is_unresolved`
// routes the edge to its own lane; `queued` (unresolved or low-confidence) marks
// the reviewer work the maieutic loop resolves. `attention` directs the eye by
// field type and state; the confidence number stays off-screen (#103).
// One canonical concept a source field also resolves to under a confirmed split
// (#103 follow-on), beside the field's headline concept.
export interface MappingEdgeComponent {
  concept_id: string;
  concept_label: string;
  relation: string;
  predicate: string;
  category: string | null;
}

export interface MappingEdge {
  mapping_id: string;
  source_std: string;
  source_field: string;
  source_label: string;
  concept_id: string | null;
  concept_label: string | null;
  category: string | null;
  relation: string;
  predicate: string;
  confidence: number;
  note: string;
  is_unresolved: boolean;
  queued: boolean;
  attention: MappingAttention;
  review: MappingReviewDraft | null;
  confirmation: MappingConfirmation | null;
  // Present and non-empty when the field was confirmed as a split.
  components: MappingEdgeComponent[];
}

// One decision-ledger record (#103): the question a decision answered, the
// options weighed, the chosen or edited answer, who confirmed it, when, and
// where it is filed. One record per decided edge; amending replaces it.
export interface MappingDecision {
  mapping_id: string;
  source_field: string;
  source_label: string;
  disposition: MappingDisposition;
  decided_via: MappingDecidedVia | null;
  question: string | null;
  options: string[];
  concept_id: string | null;
  concept_label: string | null;
  relation: string;
  predicate: string;
  note: string | null;
  confirmed_by: string;
  role: string;
  confirmed_at: string;
  filed_to: { edge: string; table: string };
}

// One component concept a proposed split resolves the field to (#103 follow-on).
export interface MappingProposalComponent {
  concept_id: string;
  relation: string;
  concept_label: string;
}

// One remap the edge chat co-pilot proposes for the open edge (#103), which the
// reviewer applies in a click. `components` is empty for a plain re-target and
// carries the primitives when the proposal splits the field across several
// concepts (with `concept_id`/`relation` as the derived headline).
export interface MappingProposal {
  summary: string;
  concept_id: string | null;
  relation: string;
  concept_label: string | null;
  components: MappingProposalComponent[];
}

// One prior turn of an edge chat, sent so a follow-up carries its context.
export interface MappingChatTurn {
  role: "user" | "assistant";
  text: string;
}

export interface MappingChatRequest {
  mapping_id: string;
  question: string;
  history: MappingChatTurn[];
}

// The engine's reply about one edge (#103): a concise answer and, when the
// message points at a better resolution, one remap the reviewer can apply.
export interface MappingChatResponse {
  mapping_id: string;
  reply: string;
  proposal: MappingProposal | null;
}

export interface MappingConcept {
  concept_id: string;
  label: string;
  category: string;
  assertion_type: AssertionType;
}

export interface MappingSourceField {
  name: string;
  label: string;
  licence_required: boolean;
}

// One row of the confirmed field set (#96 reads this). A queued edge carries its
// reviewer and time; a high-confidence candidate is ratified by the whole-mapping
// confirmation.
export interface MappingFieldSetRow {
  source_field: string;
  source_label: string;
  concept_id: string | null;
  relation: string;
  predicate: string;
  licence_required: boolean;
  confirmed_by: string | null;
  confirmed_at: string | null;
  origin: "confirmed" | "candidate";
}

// The case-review confirmation surface (#98), served by GET /api/cases/{barcode}/review. The record is
// the stored per-case checklist; each field carries its B1 validation block (#97) and the concept it
// answers, and the payload joins the decision ledger. Every value is served here, never hardcoded.

export type FieldCardKind = "confirmed" | "derived" | "not_applicable";
export type FieldAttention = "confident" | "needs_judgment";
export type FieldPromotion = "confirmed_eligible" | "needs_review";
export type FieldExtractionState =
  | "present"
  | "not_applicable"
  | "not_stated"
  | "indeterminate"
  | "determined_by_join"
  | "constrained";

// One B1 shape check (#97): a type, enum, cardinality, or state check and its outcome.
export interface ValidationCheck {
  name: "type" | "enum" | "cardinality" | "state";
  status: "pass" | "fail" | "not_applicable";
  detail: string;
}

// The recompute of a derived concept (#97), with a human label per primitive input concept.
export interface FieldDerivation {
  status:
    | "not_derived"
    | "matched"
    | "mismatched"
    | "inputs_absent"
    | "rule_not_implemented"
    | "not_checked";
  rule: string | null;
  inputs: string[];
  input_labels: { concept_id: string; label: string }[];
  recomputed: unknown;
  extracted: unknown;
  detail: string;
}

// One field's #97 validation block: the shape checks, the derivation recompute, and the promotion it
// earns. The confirmation card renders this beside the value.
export interface FieldValidation {
  concept_id: string;
  assertion_type: AssertionType;
  cardinality: Cardinality;
  state: FieldExtractionState;
  value: unknown;
  evidence: EvidenceSpan | null;
  checks: ValidationCheck[];
  derivation: FieldDerivation;
  promotion: FieldPromotion;
  reasons: string[];
}

// One decision-ledger record for a case field (#98): the value filed, how it was reached, who filed it
// and when, and where it is filed. One record per decided field; amending replaces it.
export interface CaseFieldDecision {
  field_name: string;
  label: string;
  value: unknown;
  status: FieldStatus;
  disposition: string;
  decided_via: string | null;
  question: string | null;
  options: string[];
  note: string | null;
  confirmed_by: string;
  role: string;
  confirmed_at: string;
  filed_to: { field: string; table: string };
}

// One record card on the confirmation surface: a checklist field with its value, evidence, the concept
// it answers, its validation block, the card archetype that renders it, and its recorded decision.
export interface CaseFieldBlock {
  field_name: string;
  label: string;
  value: unknown;
  value_type: "string" | "number" | "boolean";
  enum_values: string[] | null;
  evidence: EvidenceSpan | null;
  status: FieldStatus;
  applicable: boolean;
  not_applicable_reason: string | null;
  concept_id: string | null;
  concept_label: string | null;
  assertion_type: AssertionType | null;
  card_kind: FieldCardKind;
  attention: FieldAttention;
  validation: FieldValidation;
  decision: CaseFieldDecision | null;
}

export interface CaseReviewSection {
  title: string;
  fields: CaseFieldBlock[];
}

export interface CaseReviewData {
  case_barcode: string;
  patient_filename: string | null;
  report_date: string | null;
  staging_edition: string;
  status: CaseStatus;
  page_count: number;
  sections: CaseReviewSection[];
  progress: { confirmed: number; applicable: number; confirmed_eligible: number; total: number };
  ledger: CaseFieldDecision[];
}

// The reviewer-session context sent with a confirm or edit (#98), drawn from the session so identity is
// not re-entered per value. A ledger row is written only when confirmer and role are present.
export interface FieldDecisionContext {
  confirmer: string;
  role: string;
  note?: string | null;
  decided_via?: string | null;
  question?: string | null;
  options?: string[] | null;
}

// One fact the value chat co-pilot rested its answer on (#98).
export interface FieldChatEvidence {
  fact: string;
  source: string;
}

export interface FieldChatTurn {
  role: "user" | "assistant";
  text: string;
}

export interface FieldChatRequest {
  question: string;
  history: FieldChatTurn[];
}

// The engine's answer about one value (#98): its reasoning, the evidence it read, and, when the question
// points at a correction, the value the reviewer can file.
export interface FieldChatResponse {
  field_name: string;
  answer: string;
  reasoning: string;
  evidence: FieldChatEvidence[];
  suggested_value: unknown;
  suggested_state: string | null;
}

export interface MappingReview {
  source_std: string;
  source: { std: string; title: string; version: string };
  threshold: number;
  categories: string[];
  concepts: MappingConcept[];
  source_fields: MappingSourceField[];
  edges: MappingEdge[];
  queue: { total: number; resolved: number; remaining: number; parked: number };
  confirmed: boolean;
  field_set: MappingFieldSetRow[] | null;
  ledger: MappingDecision[];
}

export interface MappingConfirmRequest {
  mapping_id: string;
  concept_id: string | null;
  relation: string;
  confirmer: string;
  role: string;
  note?: string | null;
  licence_required?: boolean;
  disposition?: MappingDisposition;
  decided_via?: MappingDecidedVia | null;
  question?: string | null;
  options?: string[] | null;
  // When present, splits the field across these component concepts, with
  // concept_id/relation as the derived headline (#103 follow-on).
  components?: { concept_id: string; relation: string }[];
}