#!/usr/bin/env bash
# patch-inclusion-gate.sh — block image creation unless Red Bear patches are wired.
#
# Verifies that:
#   1. Every patch file referenced in recipe.toml exists on disk
#   2. Every patch file in local/patches/ is wired into at least one recipe
#
# Public scripts that create harddrive images or live ISOs must call this before
# invoking `make all`, `make live`, or a direct image target.

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

cd "$PROJECT_ROOT"

if [ "${REDBEAR_SKIP_PATCH_INCLUSION_GATE:-0}" = "1" ]; then
    echo "WARNING: REDBEAR_SKIP_PATCH_INCLUSION_GATE=1; patch inclusion gate bypassed" >&2
    exit 0
fi

errors=0

# Check 1: every patch referenced in recipe.toml must exist on disk
while IFS= read -r recipe_toml; do
    recipe_dir="$(dirname "$recipe_toml")"
    patch_list=$(grep -oP 'patches\s*=\s*\[([^\]]*)\]' "$recipe_toml" 2>/dev/null | grep -oP '"[^"]+\.patch"' | tr -d '"' || true)

    for patch_name in $patch_list; do
        patch_path="$recipe_dir/$patch_name"
        if [ ! -f "$patch_path" ]; then
            echo "ERROR: $recipe_toml references '$patch_name' but file not found at $patch_path" >&2
            errors=$((errors + 1))
        fi
    done
done < <(find recipes local/recipes -name "recipe.toml" -not -path "*/source/*" 2>/dev/null)

# Check 2: every patch in local/patches/ should be wired into at least one recipe
while IFS= read -r patch_file; do
    patch_name=$(basename "$patch_file")
    component=$(basename "$(dirname "$patch_file")")

    wired=$(grep -rl "\"$patch_name\"" recipes/ local/recipes/ --include="recipe.toml" 2>/dev/null | head -1 || true)
    if [ -z "$wired" ]; then
        echo "WARNING: local/patches/$component/$patch_name is not wired into any recipe.toml" >&2
    fi
done < <(find local/patches -name "*.patch" -type f 2>/dev/null)

if [ "$errors" -gt 0 ]; then
    echo "ERROR: $errors patch reference(s) broken. Fix before building." >&2
    exit 1
fi

echo ">>> Patch inclusion gate passed"