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

ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
LINUXCNC_ROOT="${LINUXCNC_ROOT:-$ROOT_DIR/../linuxcnc}"
UPSTREAM="$LINUXCNC_ROOT/src/emc/task/taskintf.cc"
SUBSET_SRC="$ROOT_DIR/vendor/linuxcnc/src/emc/task/taskintf_wasm_subset.cc"
SUBSET_HDR="$ROOT_DIR/vendor/linuxcnc/src/emc/task/taskintf_wasm_subset.hh"
BUILD_SCRIPT="$ROOT_DIR/tools/build_task_hal_wasm.sh"

print_kv() {
  printf '%s=%s\n' "$1" "$2"
}

require_file() {
  local key="$1"
  local path="$2"
  if [[ ! -f "$path" ]]; then
    print_kv "$key" missing
    print_kv "${key}_path" "$path"
    exit 1
  fi
  print_kv "$key" ok
  print_kv "${key}_path" "$path"
}

require_pattern() {
  local key="$1"
  local pattern="$2"
  local path="$3"
  if ! rg -q "$pattern" "$path"; then
    print_kv "$key" missing
    print_kv "${key}_pattern" "$pattern"
    print_kv "${key}_path" "$path"
    exit 1
  fi
  print_kv "$key" ok
}

require_file task_taskintf_subset_upstream "$UPSTREAM"
require_file task_taskintf_subset_source "$SUBSET_SRC"
require_file task_taskintf_subset_header "$SUBSET_HDR"

for fn in \
  emcMotionInit \
  emcMotionUpdate \
  emcMotionAbort \
  emcTrajSetMotionId \
  emcTrajEnable \
  emcTrajDisable \
  emcTrajAbort \
  emcTrajPause \
  emcTrajStep \
  emcTrajResume \
  emcTrajLinearMove \
  emcJogIncr \
  emcJointHome \
  emcJointUnhome \
  emcMotionSetAout
do
  require_pattern "task_taskintf_subset_upstream_$fn" "int $fn\\(" "$UPSTREAM"
  require_pattern "task_taskintf_subset_origin_$fn" "$fn" "$SUBSET_SRC"
done

require_pattern task_taskintf_subset_origin_path "src/emc/task/taskintf.cc" "$SUBSET_SRC"
require_pattern task_taskintf_subset_build_included "taskintf_wasm_subset.cc" "$BUILD_SCRIPT"
require_pattern task_taskintf_subset_motion_bridge_anchors "emcMotionInit,emcMotionUpdate,emcMotionAbort" "$SUBSET_SRC"
require_pattern task_taskintf_subset_traj_control_anchors "emcTrajSetMotionId,emcTrajEnable,emcTrajDisable,emcTrajAbort,emcTrajPause,emcTrajStep,emcTrajResume" "$SUBSET_SRC"
require_pattern task_taskintf_subset_linear_move_ex "lc_taskintf_subset_linear_move_ex" "$SUBSET_HDR"
require_pattern task_taskintf_subset_linear_move_anchors "emcTrajLinearMove,EMCMOT_SET_LINE,usrmotWriteEmcmotCommand" "$SUBSET_SRC"
require_pattern task_taskintf_subset_jog_home_switchkins_anchors "emcJogIncr,emcJointHome,emcJointUnhome,emcMotionSetAout" "$SUBSET_SRC"

print_kv task_taskintf_subset_source_reuse ok