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

tmpdir="$(mktemp -d)"
trap 'rm -rf "$tmpdir"' EXIT

curl_log="$tmpdir/curl.log"
bin_dir="$tmpdir/bin"
mkdir -p "$bin_dir"

cat >"$bin_dir/curl" <<'EOF'
#!/usr/bin/env bash
set -Eeuo pipefail

log_file="${CURL_LOG:?}"
printf '%s\n' "$*" >>"$log_file"

last_arg="${!#}"

if [[ " $* " == *" -X DELETE "* ]]; then
  printf '204'
  exit 0
fi

case "$last_arg" in
  *page=1)
    printf '%s' '[{"id":4,"tag_name":"v4","name":"release-4","created_at":"2024-04-01T00:00:00Z"},{"id":3,"tag_name":"v3","name":"release-3","created_at":"2024-03-01T00:00:00Z"}]'
    ;;
  *page=2)
    printf '%s' '[{"id":2,"tag_name":"v2","name":"release-2","created_at":"2024-02-01T00:00:00Z"},{"id":1,"tag_name":"v1","name":"release-1","created_at":"2024-01-01T00:00:00Z"}]'
    ;;
  *page=3)
    printf '%s' '[]'
    ;;
  *)
    printf 'unexpected request: %s\n' "$last_arg" >&2
    exit 1
    ;;
esac
EOF
chmod +x "$bin_dir/curl"

cat >"$bin_dir/jq.py" <<'PY'
#!/usr/bin/env python3
import json
import re
import sys

expr = ""
flags = set()
args = sys.argv[1:]

while args:
    current = args.pop(0)
    if current in {"-e", "-c", "-r", "-s"}:
        flags.add(current)
        continue
    if current == "--":
        if not args:
            raise SystemExit("missing jq expression")
        expr = args.pop(0)
        break
    if current.startswith("-"):
        flags.add(current)
        continue
    expr = current
    break

raw = sys.stdin.read()

def dump(value):
    if "-r" in flags and isinstance(value, (str, int, float)) and not isinstance(value, bool):
        sys.stdout.write(str(value))
    else:
        sys.stdout.write(json.dumps(value, separators=(",", ":")))

if expr == "length":
    data = json.loads(raw or "null")
    print(len(data))
    raise SystemExit(0)

if expr == "add":
    arrays = [json.loads(line) for line in raw.splitlines() if line.strip()]
    merged = []
    for item in arrays:
        merged.extend(item)
    dump(merged)
    raise SystemExit(0)

if expr == "sort_by(.created_at) | reverse":
    data = json.loads(raw or "[]")
    dump(sorted(data, key=lambda item: item["created_at"], reverse=True))
    raise SystemExit(0)

match = re.fullmatch(r"\.\[(\d+):\]", expr)
if match:
    data = json.loads(raw or "[]")
    dump(data[int(match.group(1)):])
    raise SystemExit(0)

if expr == ".[]":
    data = json.loads(raw or "[]")
    for item in data:
        dump(item)
        sys.stdout.write("\n")
    raise SystemExit(0)

match = re.fullmatch(r"\.(id|tag_name|name)", expr)
if match:
    data = json.loads(raw or "null")
    value = data.get(match.group(1))
    dump(value)
    raise SystemExit(0)

raise SystemExit(f"unsupported jq expression: {expr}")
PY
chmod +x "$bin_dir/jq.py"

cat >"$bin_dir/jq" <<'EOF'
#!/usr/bin/env bash
set -Eeuo pipefail
exec python3 "$0.py" "$@"
EOF
chmod +x "$bin_dir/jq"

PATH="$bin_dir:$PATH" \
CURL_LOG="$curl_log" \
GITEA_SERVER_URL="https://gitea.example.test" \
GITEA_REPOSITORY="owner/repo" \
KEEP_COUNT="2" \
RUNNER_TOKEN="" \
bash ./entrypoint.sh >/dev/null

grep -q 'page=1' "$curl_log"
grep -q 'page=2' "$curl_log"
grep -q 'page=3' "$curl_log"
grep -q '/releases/2' "$curl_log"
grep -q '/releases/1' "$curl_log"

if grep -q '/releases/3' "$curl_log" || grep -q '/releases/4' "$curl_log"; then
  printf 'unexpected deletion request in %s\n' "$curl_log" >&2
  exit 1
fi