#!/usr/bin/env bash
#
# pipeline-trigger.sh — Trigger a Woodpecker CI pipeline
#
# Usage: pipeline-trigger.sh [-r owner/repo] [-b branch]
#
# Options:
#   -r repo     Repository in owner/repo format (default: current repo)
#   -b branch   Branch to build (default: main)
#   -h          Show this help
#
# Requires: woodpecker.url and woodpecker.token in credentials.json
set -euo pipefail

MOSAIC_HOME="${MOSAIC_HOME:-$HOME/.config/mosaic}"
source "$MOSAIC_HOME/tools/_lib/credentials.sh"

CRED_FILE="${MOSAIC_CREDENTIALS_FILE:-$HOME/src/jarvis-brain/credentials.json}"
if ! jq -e '.woodpecker.token // empty | select(. != "")' "$CRED_FILE" &>/dev/null; then
  echo "Error: Woodpecker API token not configured in credentials.json" >&2
  echo "See: ~/.config/mosaic/tools/woodpecker/README.md" >&2
  exit 1
fi

load_credentials woodpecker

REPO=""
BRANCH="main"

while getopts "r:b:h" opt; do
  case $opt in
    r) REPO="$OPTARG" ;;
    b) BRANCH="$OPTARG" ;;
    h) head -12 "$0" | grep "^#" | sed 's/^# \?//'; exit 0 ;;
    *) echo "Usage: $0 [-r owner/repo] [-b branch]" >&2; exit 1 ;;
  esac
done

if [[ -z "$REPO" ]]; then
  remote_url=$(git remote get-url origin 2>/dev/null || true)
  if [[ -n "$remote_url" ]]; then
    REPO=$(echo "$remote_url" | sed -E 's|.*[:/]([^/]+/[^/]+?)(\.git)?$|\1|')
  else
    echo "Error: -r owner/repo required (not in a git repository)" >&2
    exit 1
  fi
fi

echo "Triggering pipeline for $REPO on branch $BRANCH..."

response=$(curl -sk -w "\n%{http_code}" -X POST \
  -H "Authorization: Bearer $WOODPECKER_TOKEN" \
  -H "Content-Type: application/json" \
  -d "$(jq -n --arg b "$BRANCH" '{branch: $b}')" \
  "${WOODPECKER_URL}/api/repos/${REPO}/pipelines")

http_code=$(echo "$response" | tail -n1)
body=$(echo "$response" | sed '$d')

if [[ "$http_code" != "200" && "$http_code" != "201" ]]; then
  echo "Error: Failed to trigger pipeline (HTTP $http_code)" >&2
  echo "$body" | jq -r '.' 2>/dev/null >&2 || echo "$body" >&2
  exit 1
fi

number=$(echo "$body" | jq -r '.number')
echo "Pipeline #$number triggered successfully"