#!/usr/bin/env bash
# Validate dbis-institutional examples against JSON Schemas (draft 2020-12).
# Uses `check-jsonschema` when available (pip install check-jsonschema).
# In CI, install first: pip install check-jsonschema
#
# Env:
#   SCHEMA_STRICT=1  exit 1 if check-jsonschema is missing (default: skip with 0)
#
set -euo pipefail
ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
SCHEMA_DIR="$ROOT/config/dbis-institutional/schemas"
EX_DIR="$ROOT/config/dbis-institutional/examples"

# validate_json_array EX_FILE SCHEMA_FILE LABEL
validate_json_array() {
  local ex_file="$1" schema_file="$2" label="$3"
  if [[ ! -f "$ex_file" ]]; then
    return 0
  fi
  if ! command -v jq &>/dev/null; then
    echo "error: jq is required for $label validation" >&2
    exit 1
  fi
  local n
  n=$(jq 'length' "$ex_file")
  if [[ "${n:-0}" -lt 1 ]]; then
    echo "error: $ex_file must be a non-empty array" >&2
    exit 1
  fi
  local batch_tmp idx
  batch_tmp="$(mktemp)"
  trap 'rm -f "$batch_tmp"' RETURN
  idx=0
  while IFS= read -r line; do
    echo "$line" >"$batch_tmp"
    check-jsonschema --schemafile "$schema_file" "$batch_tmp"
    idx=$((idx + 1))
  done < <(jq -c '.[]' "$ex_file")
  echo "OK $label ($idx items)"
  rm -f "$batch_tmp"
  trap - RETURN
}

if ! command -v check-jsonschema &>/dev/null; then
  if [[ "${SCHEMA_STRICT:-0}" == "1" ]]; then
    echo "error: check-jsonschema not found; pip install check-jsonschema" >&2
    exit 1
  fi
  echo "skip: check-jsonschema not installed (pip install check-jsonschema); JSON parse still covered by validate-dbis-institutional-json.sh"
  exit 0
fi

check-jsonschema --schemafile "$SCHEMA_DIR/settlement-event.schema.json" "$EX_DIR/settlement-event.example.json"
check-jsonschema --schemafile "$SCHEMA_DIR/settlement-event.schema.json" "$EX_DIR/settlement-event.chain138-primary.example.json"
check-jsonschema --schemafile "$SCHEMA_DIR/settlement-event.schema.json" "$EX_DIR/settlement-event.min.json"
validate_json_array "$EX_DIR/settlement-events-batch.example.json" "$SCHEMA_DIR/settlement-event.schema.json" "settlement-events-batch"

check-jsonschema --schemafile "$SCHEMA_DIR/address-registry-entry.schema.json" "$EX_DIR/address-registry-entry.example.json"
validate_json_array "$EX_DIR/address-registry-entries-batch.example.json" "$SCHEMA_DIR/address-registry-entry.schema.json" "address-registry-entries-batch"

check-jsonschema --schemafile "$SCHEMA_DIR/trust.schema.json" "$EX_DIR/trust.json"
check-jsonschema --schemafile "$SCHEMA_DIR/governance.schema.json" "$EX_DIR/governance.json"
check-jsonschema --schemafile "$SCHEMA_DIR/policy-manifest.schema.json" "$EX_DIR/policy.json"
echo "OK dbis-institutional schema validation (settlement-event, settlement-event.chain138-primary, settlement-events-batch, address-registry-entry, address-registry-entries-batch, trust, governance, policy-manifest)"