#!/bin/bash

# 读取环境变量
URL=$CI_API_V4_URL
TOKEN=$GITLAB_ACCESS_TOKEN
PROJECT_ID=$CI_PROJECT_ID

echo "PRIVATE-TOKEN: $TOKEN $URL/projects/$PROJECT_ID/repository/tags"
tags_json=$(curl -H "Content-Type: application/json" -H "PRIVATE-TOKEN: $TOKEN" "$URL/projects/$PROJECT_ID/repository/tags")
echo "tags_json:$tags_json\n"
tags=$(echo "$tags_json" | jq -r '.[].name')
tags_length=$(echo "$tags_json" | jq -r 'length')
if [ "$tags_length" -lt 2 ]; then
  newest_tag="master"
  second_newest_tag=$(echo "$tags" | head -n 1)
else
  newest_tag=$(echo "$tags" | head -n 1)
  second_newest_tag=$(echo "$tags" | head -n 2 | tail -n 1)
fi
echo "newest_tag:$newest_tag-second_newest_tag：$second_newest_tag\n"
# 比较两个tag之间的commits
compare_json=$(curl -s --header "PRIVATE-TOKEN: $TOKEN" "$URL/projects/$PROJECT_ID/repository/compare?from=$second_newest_tag&to=$newest_tag")
#echo "compare_json:$compare_json\n"
feat_log=""
fix_log=""
other_log=""
while IFS= read -r commit_json; do
  # 使用 jq 解析每一行的 JSON 对象
  commit_id=$(echo "$commit_json" | jq -r '.id')
  commit_message=$(echo "$commit_json" | jq -r '.message')
  if [[ "$commit_message" =~ ("feat:"*) ]]; then
    feat_log+="* ${commit_message#feat:}\n"
  elif [[ "$commit_message" =~ ("fix:"*) ]]; then
    fix_log+="* ${commit_message#fix:}\n"
  elif [[ ! "$commit_message" =~ ("Merge"* | "Revert"*) ]]; then
    other_log+="* ${commit_message#("Merge" | "Revert")}\n"
  fi
done < <(echo "$compare_json" | jq -c '.commits[] | {id: .id, message: .message}')

echo -e "feat_log:$feat_log,fix_log:$fix_log,other_log:$other_log"
# 如果没有feat或fix的commits，则设置默认日志
if [[ -z "$feat_log" ]]; then
    feat_log="- No 'feat' commits since last tagged commit."
fi
if [[ -z "$fix_log" ]]; then
    fix_log="- No 'fix' commits since last tagged commit."
fi

# 生成changelog文本
changelog="# Features\n$feat_log\n# Fixes\n$fix_log\n# Others\n$other_log"

# 打印结果（或可以重定向到文件等）
echo "$changelog"

# （可选）将结果保存到文件中
echo -e "$changelog" > changelog.md