#!/usr/bin/env bash
# _common.sh — sourced by all dev-scripts. Do not run directly.

set -euo pipefail

# ── Colores ────────────────────────────────────────────────────────────────
RED='\033[0;31m'
GRN='\033[0;32m'
YLW='\033[0;33m'
BLU='\033[0;34m'
DIM='\033[2m'
RST='\033[0m'

ok()   { echo -e "${GRN}✓${RST}  $*"; }
info() { echo -e "${BLU}→${RST}  $*"; }
warn() { echo -e "${YLW}!${RST}  $*"; }
fail() { echo -e "${RED}✗${RST}  $*" >&2; exit 1; }
dim()  { echo -e "${DIM}$*${RST}"; }

# ── Repo root ──────────────────────────────────────────────────────────────
# Scripts can be called from any directory; we always operate from repo root.
REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$REPO_ROOT"

# ── .env loader ───────────────────────────────────────────────────────────
load_env() {
  local env_file="${1:-.env}"
  [[ -f "$env_file" ]] || fail ".env not found at $REPO_ROOT/$env_file — copy .env.example and fill it in"
  # Export only lines that are KEY=VALUE (skip comments and blanks)
  set -o allexport
  # shellcheck disable=SC1090
  source <(grep -E '^[A-Z_]+=.+' "$env_file")
  set +o allexport
}

# ── Go tooling ─────────────────────────────────────────────────────────────
GO=${GO_BIN:-go}
export PATH="$PATH:/usr/local/go/bin"
command -v "$GO" &>/dev/null || fail "go not found — install Go or set GO_BIN"

# ── Process helpers ────────────────────────────────────────────────────────
RUN_DIR="$REPO_ROOT/run"
mkdir -p "$RUN_DIR"

pid_file()  { echo "$RUN_DIR/$1.pid"; }
log_file()  { echo "$RUN_DIR/$1.log"; }

read_pid() {
  local f; f="$(pid_file "$1")"
  [[ -f "$f" ]] && cat "$f" || echo 0
}

is_running() {
  local pid; pid="$(read_pid "$1")"
  [[ "$pid" -gt 0 ]] && kill -0 "$pid" 2>/dev/null
}

agent_status() {
  local id="$1" enabled="$2"
  if [[ "$enabled" != "true" ]]; then
    echo "disabled"
  elif is_running "$id"; then
    echo "running"
  else
    echo "stopped"
  fi
}

# ── Agent discovery ────────────────────────────────────────────────────────
# Prints: id|version|enabled|description  (one line per agent)
list_agents_raw() {
  for cfg in agents/*/config.yaml; do
    [[ -f "$cfg" ]] || continue
    local id version enabled desc
    id=$(grep -m1 '^  id:'       "$cfg" | awk '{print $2}')
    version=$(grep -m1 '^  version:' "$cfg" | awk '{print $2}' | tr -d '"')
    enabled=$(grep -m1 '^  enabled:' "$cfg" | awk '{print $2}')
    desc=$(grep -m1 '^  description:' "$cfg" | cut -d'"' -f2)
    [[ -n "$id" ]] && echo "${id}|${version}|${enabled}|${desc}|${cfg}"
  done
}

# ── Usage helper ──────────────────────────────────────────────────────────
need_arg() {
  [[ -n "${1:-}" ]] || { echo "Usage: $0 <agent-id>"; exit 1; }
}