#!/bin/bash

# Load shared libraries
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/../lib/init.sh"

# Comprehensive metrics tracking script

set -e

METRICS_FILE="docs/SUCCESS_METRICS.md"
METRICS_DATA_FILE="docs/metrics-data.json"

echo "📊 Comprehensive Metrics Tracking"
echo ""

# Create metrics data file if it doesn't exist
if [ ! -f "$METRICS_DATA_FILE" ]; then
  cat > "$METRICS_DATA_FILE" << 'EOF'
{
  "lastUpdated": "2025-01-27",
  "metrics": {
    "infrastructure": {
      "costReduction": {
        "target": 35,
        "current": null,
        "unit": "percent"
      },
      "sharedInfrastructure": {
        "target": 80,
        "current": 0,
        "unit": "percent"
      },
      "infrastructureAsCode": {
        "target": 100,
        "current": null,
        "unit": "percent"
      }
    },
    "code": {
      "sharedPackages": {
        "target": 10,
        "current": 7,
        "unit": "count"
      },
      "duplicateCodeReduction": {
        "target": 50,
        "current": null,
        "unit": "percent"
      },
      "projectsUsingPackages": {
        "target": 80,
        "current": 0,
        "unit": "percent"
      }
    },
    "deployment": {
      "deploymentTimeReduction": {
        "target": 50,
        "current": null,
        "unit": "percent"
      },
      "unifiedCICD": {
        "target": 90,
        "current": null,
        "unit": "percent"
      }
    },
    "developerExperience": {
      "onboardingTimeReduction": {
        "target": 50,
        "current": null,
        "unit": "percent"
      },
      "developerSatisfaction": {
        "target": 80,
        "current": null,
        "unit": "percent"
      },
      "documentationCoverage": {
        "target": 90,
        "current": 100,
        "unit": "percent"
      }
    },
    "operational": {
      "uptime": {
        "target": 99.9,
        "current": null,
        "unit": "percent"
      },
      "incidentReduction": {
        "target": 50,
        "current": null,
        "unit": "percent"
      },
      "incidentResolution": {
        "target": 80,
        "current": null,
        "unit": "percent"
      },
      "operationalOverheadReduction": {
        "target": 20,
        "current": null,
        "unit": "percent"
      }
    },
    "services": {
      "duplicateServicesReduction": {
        "target": 50,
        "current": null,
        "unit": "percent"
      }
    }
  }
}
EOF
  echo "✅ Created metrics data file: $METRICS_DATA_FILE"
fi

# Function to calculate progress
calculate_progress() {
  local current=$1
  local target=$2
  if [ -z "$current" ] || [ "$current" == "null" ]; then
    echo "0"
  else
    local progress=$(echo "scale=2; ($current / $target) * 100" | bc)
    if (( $(echo "$progress > 100" | bc -l) )); then
      echo "100"
    else
      echo "$progress"
    fi
  fi
}

# Update metrics file
echo "📝 Updating metrics tracking..."

# Read current metrics
if command -v jq &> /dev/null; then
  CURRENT_PACKAGES=$(jq -r '.metrics.code.sharedPackages.current' "$METRICS_DATA_FILE")
  TARGET_PACKAGES=$(jq -r '.metrics.code.sharedPackages.target' "$METRICS_DATA_FILE")

  echo "📊 Current Metrics Summary:"
  echo "   Shared Packages: ${CURRENT_PACKAGES}/${TARGET_PACKAGES} ($(calculate_progress "$CURRENT_PACKAGES" "$TARGET_PACKAGES")%)"
  echo ""
  echo "💡 To update metrics:"
  echo "   1. Edit $METRICS_DATA_FILE"
  echo "   2. Update current values"
  echo "   3. Run this script to regenerate report"
else
  echo "⚠️  jq not found, using basic tracking"
  echo "💡 Edit $METRICS_DATA_FILE manually to update metrics"
fi

echo ""
echo "📊 Metrics Tracking Active"
echo "   → Data file: $METRICS_DATA_FILE"
echo "   → Report file: $METRICS_FILE"
echo "   → Run monthly to track progress"