#!/usr/bin/env bash
set -euo pipefail

# Validates that all paths referenced in marketplace.json and plugin.json manifests
# resolve to existing files or directories. Run from repo root or pass REPO_ROOT as arg.

REPO_ROOT="${1:-$(git rev-parse --show-toplevel 2>/dev/null || pwd)}"
FAIL=0

err() { echo "  FAIL: $1" >&2; FAIL=$((FAIL + 1)); }

if ! command -v jq &>/dev/null; then
  echo "Error: jq is required but not installed" >&2
  exit 1
fi

MARKETPLACE="$REPO_ROOT/.claude-plugin/marketplace.json"
if [[ ! -f "$MARKETPLACE" ]]; then
  exit 0
fi

plugin_count=$(jq '.plugins | length' "$MARKETPLACE")

for ((i = 0; i < plugin_count; i++)); do
  name=$(jq -r ".plugins[$i].name" "$MARKETPLACE")
  source_type=$(jq -r ".plugins[$i].source | type" "$MARKETPLACE")

  # Remote sources (github, git, npm objects) have no local directory to check
  if [[ "$source_type" != "string" ]]; then
    continue
  fi

  source=$(jq -r ".plugins[$i].source" "$MARKETPLACE")
  source="${source#./}"
  plugin_dir="$REPO_ROOT/$source"

  if [[ ! -d "$plugin_dir" ]]; then
    err "plugin '$name': source directory not found: $source"
    continue
  fi

  manifest="$plugin_dir/plugin.json"
  if [[ ! -f "$manifest" ]]; then
    err "plugin '$name': plugin.json not found in $source"
    continue
  fi

  # Check skills directories
  skill_count=$(jq '.skills | if . then length else 0 end' "$manifest")
  for ((s = 0; s < skill_count; s++)); do
    skill_path=$(jq -r ".skills[$s]" "$manifest")
    full_path="$plugin_dir/$skill_path"
    full_path="${full_path%/}"
    if [[ ! -d "$full_path" ]]; then
      err "plugin '$name': skills path not found: $skill_path"
    fi
  done

  # Check file references (hooks, mcpServers, agents)
  for field in hooks mcpServers agents; do
    ref=$(jq -r ".${field} // empty" "$manifest")
    [[ -z "$ref" ]] && continue
    full_path="$plugin_dir/$ref"
    full_path="${full_path%/}"
    if [[ ! -e "$full_path" ]]; then
      err "plugin '$name': $field path not found: $ref"
    fi
  done
done

if [[ $FAIL -gt 0 ]]; then
  echo "Manifest check failed: $FAIL error(s)" >&2
  exit 1
fi