#!/usr/bin/env sh
# report-template.sh — 解析報表範本的位置（供 jsc-log:report 呼叫）。
# 用法:
#   report-template.sh resolve {daily|weekly|monthly|yearly} [起始目錄]
#   report-template.sh list [起始目錄]
#
# 解析順序：工作目錄的 .jsc/templates/report-{period}.md 優先，沒有才用技能自帶的
# templates/report-{period}.md。專案要自訂報表格式時，放一份同名檔案就換掉範本，
# 不必改技能。起始目錄省略時用目前工作目錄。
#
# 輸出（resolve）：{絕對路徑}<TAB>{project|skill}
# 輸出（list）：每種期間一行 {period}<TAB>{絕對路徑}<TAB>{project|skill}
#
# 結束碼: 0=找到 2=用法錯誤 3=兩處都找不到範本（技能自帶的那份被刪了）
set -eu

HERE=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
SKILL_TPL=$(CDPATH= cd -- "$HERE/.." && pwd)/templates
TAB=$(printf '\t')

usage() {
  echo "用法：report-template.sh {resolve {daily|weekly|monthly|yearly} [起始目錄]|list [起始目錄]}" >&2
  exit 2
}

resolve_one() { # $1=period $2=起始目錄
  _p="$1"; _d="$2"
  _proj="$_d/.jsc/templates/report-$_p.md"
  if [ -f "$_proj" ]; then
    printf '%s%s%s\n' "$_proj" "$TAB" project
    return 0
  fi
  _skill="$SKILL_TPL/report-$_p.md"
  if [ -f "$_skill" ]; then
    printf '%s%s%s\n' "$_skill" "$TAB" skill
    return 0
  fi
  return 3
}

cmd="${1:-}"
case "$cmd" in
  resolve)
    period="${2:-}"
    case "$period" in daily|weekly|monthly|yearly) ;; *) usage ;; esac
    dir="${3:-$PWD}"
    dir=$(CDPATH= cd -- "$dir" 2>/dev/null && pwd) || { echo "找不到目錄：${3:-$PWD}" >&2; exit 2; }
    resolve_one "$period" "$dir" || {
      echo "找不到 report-$period.md：$dir/.jsc/templates/ 與 $SKILL_TPL 都沒有" >&2
      exit 3
    } ;;
  list)
    dir="${2:-$PWD}"
    dir=$(CDPATH= cd -- "$dir" 2>/dev/null && pwd) || { echo "找不到目錄：${2:-$PWD}" >&2; exit 2; }
    rc=0
    for p in daily weekly monthly yearly; do
      out=$(resolve_one "$p" "$dir") || { printf '%s\t-\tmissing\n' "$p"; rc=3; continue; }
      printf '%s\t%s\n' "$p" "$out"
    done
    exit "$rc" ;;
  *) usage ;;
esac