#!/bin/bash

VERSION="2025.04"

# Configuration
HOST="https://your-api-host.com"
ENDPOINT="/api/subscriptions/get_subscriptions.php"
API_KEY="your_api_key_here"

# Defaults
MODE="md"
FULL=false
OUTPUT=""  # Will set default per mode later

# Show help
show_help() {
  cat << EOF
ℹ️ Wallos Fetcher Script - v$VERSION

Usage: ./wallos-fetch.sh [OPTIONS]

Fetch and export subscription data from a Wallos instance.

Options:
  --json             Output raw JSON
  --md               Output Markdown table
  --full             Include more fields in CSV/Markdown
  --output <file>    Custom output filename
  --help             Show this help message and exit
  --version          Show version and exit

Default output is Markdown.
EOF
}

# Argument parser
while [[ "$#" -gt 0 ]]; do
  case "$1" in
    --json) MODE="json" ;;
    --md) MODE="md" ;;
    --full) FULL=true ;;
    --output)
      shift
      OUTPUT="$1"
      ;;
    --help) show_help; exit 0 ;;
    --version) echo "❓ wallos-fetch v$VERSION"; exit 0 ;;
    *) echo "Unknown option: $1" && show_help && exit 1 ;;
  esac
  shift
done

# Set default filenames if none specified
if [[ -z "$OUTPUT" ]]; then
  case "$MODE" in
    json) OUTPUT="subscriptions.json" ;;
    md) OUTPUT="subscriptions.md" ;;
    csv) OUTPUT="subscriptions.csv" ;;
  esac
fi

# Construct the API URL
URL="${HOST}${ENDPOINT}?api_key=${API_KEY}"

# Perform the request
RESPONSE=$(curl -s -w "\nHTTP_STATUS:%{http_code}" "$URL")
BODY=$(echo "$RESPONSE" | sed -n '1,/^HTTP_STATUS:/p' | sed '$d')
STATUS=$(echo "$RESPONSE" | tr -d '\n' | sed -e 's/.*HTTP_STATUS://')

echo "HTTP Status: $STATUS"

if [ "$STATUS" -eq 200 ]; then
  echo "$BODY" > temp_response.json

  if [ "$MODE" == "json" ]; then
    mv temp_response.json "$OUTPUT"
    echo "💾 Saved JSON to $OUTPUT"

elif [ "$MODE" == "md" ]; then
  # Write markdown header and description
  {
    echo "# 🧾 Active Subscriptions Overview"
    echo ""
    echo "This document lists all recurring subscriptions tied to this household or individual. It includes costs, renewal dates, categories, and payment methods. This record is provided as a reference for financial planning, digital legacy management, or to assist family members in case of emergencies or estate matters."
    echo ""
    echo "_Last updated: $(date +'%Y-%m-%d')_"
    echo ""
  } > "$OUTPUT"

  if [ "$FULL" = true ]; then
    echo "| ID | Name | Price | Currency | Next Payment | Cycle | Auto Renew | Category | Payment Method |" >> "$OUTPUT"
    echo "|----|------|-------|----------|---------------|-------|-------------|----------|----------------|" >> "$OUTPUT"
    jq -r '
      .subscriptions[] | [
        .id,
        .name,
        (.price | tostring),
        .currency_id,
        .next_payment,
        .cycle,
        .auto_renew,
        (.category_name | gsub("&gt;"; ">") | gsub("&amp;"; "&")),
        .payment_method_name
      ] | @tsv
    ' temp_response.json | while IFS=$'\t' read -r id name price curr next cycle renew cat pay; do
      echo "| $id | $name | $price | $curr | $next | $cycle | $renew | $cat | $pay |" >> "$OUTPUT"
    done
  else
    echo "| ID | Name | Price | Next Payment | Category | Payment Method |" >> "$OUTPUT"
    echo "|----|------|-------|---------------|----------|----------------|" >> "$OUTPUT"
    jq -r '
      .subscriptions[] | [
        .id,
        .name,
        (.price | tostring),
        .next_payment,
        (.category_name | gsub("&gt;"; ">") | gsub("&amp;"; "&")),
        .payment_method_name
      ] | @tsv
    ' temp_response.json | while IFS=$'\t' read -r id name price next cat pay; do
      echo "| $id | $name | $price | $next | $cat | $pay |" >> "$OUTPUT"
    done
  fi
    rm -f temp_response.json
    echo "💾 Saved Markdown table to $OUTPUT"

  else
    if [ "$FULL" = true ]; then
      echo '"id","name","price","currency_id","next_payment","cycle","auto_renew","category_name","payment_method_name"' > "$OUTPUT"
      jq -r '
        .subscriptions[] | [
          .id,
          .name,
          .price,
          .currency_id,
          .next_payment,
          .cycle,
          .auto_renew,
          .category_name,
          .payment_method_name
        ] | @csv
      ' temp_response.json >> "$OUTPUT"
    else
      echo '"id","name","price","next_payment","category_name","payment_method_name"' > "$OUTPUT"
      jq -r '
        .subscriptions[] | [
          .id,
          .name,
          .price,
          .next_payment,
          .category_name,
          .payment_method_name
        ] | @csv
      ' temp_response.json >> "$OUTPUT"
    fi
    rm -f temp_response.json
    echo "💾 Saved CSV to $OUTPUT"
  fi
else
  echo "❌ Request failed. Response not saved."
fi