#!/usr/bin/env bash
# =============================================================================
# shell-init.sh — OSVauco terminal startup hook
# Legg til i ~/.bashrc:
#   source ~/OSVauco/scripts/shell-init.sh
# =============================================================================

OSVAUCO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")/.." && pwd)"
ENV_FILE="${OSVAUCO_DIR}/.env"

# Last inn .env hvis den finnes
if [[ -f "$ENV_FILE" ]]; then
  set -o allexport
  source "$ENV_FILE"
  set +o allexport
fi

# Bare kjør hvis PROJECT_ID er satt
if [[ -z "${PROJECT_ID:-}" ]]; then
  return 0
fi

# --- Kostnadsvisning ---
YELLOW='\033[1;33m'
GREEN='\033[0;32m'
RED='\033[0;31m'
CYAN='\033[0;36m'
DIM='\033[2m'
BOLD='\033[1m'
NC='\033[0m'

# Kalkuler akkumulert kost siden prosjektstart
START_EPOCH=1747144800   # 2026-05-13T14:00:00Z
NOW_EPOCH=$(date +%s)
ELAPSED_SEC=$(( NOW_EPOCH - START_EPOCH ))
ELAPSED_DAYS_INT=$(( ELAPSED_SEC / 86400 ))
ELAPSED_HRS=$(( (ELAPSED_SEC % 86400) / 3600 ))
ELAPSED_MIN=$(( (ELAPSED_SEC % 3600) / 60 ))

# Kost-estimat (bash bruker integer, skalert x100000)
# USD_PER_DAY = 0.03  -> 3000 (x100000)
USD_SCALED=$(( ELAPSED_SEC * 3000 / 86400 ))   # i enheter av 0.00001 USD
NOK_SCALED=$(( USD_SCALED * 1062 / 100 ))       # * 10.62 -> i enheter av 0.00001 NOK

# Formater til lesbar tekst
USD_INT=$(( USD_SCALED / 100000 ))
USD_DEC=$(( USD_SCALED % 100000 ))
NOK_INT=$(( NOK_SCALED / 100000 ))
NOK_DEC=$(( NOK_SCALED % 100000 ))

printf "\n"
printf "${CYAN}${BOLD}  ╔══════════════════════════════════════╗${NC}\n"
printf "${CYAN}${BOLD}  ║  OSVauco · GCP Kostnadsmåler        ║${NC}\n"
printf "${CYAN}${BOLD}  ╠══════════════════════════════════════╣${NC}\n"
printf "  ║  ${DIM}Fra: 2026-05-13  |  Prosjekt: ${PROJECT_ID:0:16}${NC}${CYAN}${BOLD}  ║${NC}\n"
printf "${CYAN}${BOLD}  ╠══════════════════════════════════════╣${NC}\n"
printf "  ║  ${YELLOW}${BOLD}NOK:  kr %d.%05d${NC}%*s${CYAN}${BOLD}  ║${NC}\n" \
  "$NOK_INT" "$NOK_DEC" "$(( 12 - ${#NOK_INT} - 6 ))" ""
printf "  ║  ${GREEN}USD:  \$%d.%05d${NC}%*s${CYAN}${BOLD}  ║${NC}\n" \
  "$USD_INT" "$USD_DEC" "$(( 13 - ${#USD_INT} - 6 ))" ""
printf "  ║  ${DIM}Tid:  %dd %02dh %02dm${NC}%*s${CYAN}${BOLD}  ║${NC}\n" \
  "$ELAPSED_DAYS_INT" "$ELAPSED_HRS" "$ELAPSED_MIN" "$(( 10 ))" ""
printf "${CYAN}${BOLD}  ╠══════════════════════════════════════╣${NC}\n"

# Hurtigsjekk: VMs og SQL (stille, bare vis hvis noe finnes)
VM_COUNT=$(gcloud compute instances list --project="${PROJECT_ID}" \
  --format='value(name)' --filter='status=RUNNING' 2>/dev/null | wc -l | tr -d ' ')
SQL_COUNT=$(gcloud sql instances list --project="${PROJECT_ID}" \
  --format='value(name)' --filter='state=RUNNABLE' 2>/dev/null | wc -l | tr -d ' ')

if [[ "$VM_COUNT" -gt 0 || "$SQL_COUNT" -gt 0 ]]; then
  printf "  ║  ${RED}${BOLD}⚠  VM: %s  SQL: %s  — kjører!${NC}%*s${CYAN}${BOLD}  ║${NC}\n" \
    "$VM_COUNT" "$SQL_COUNT" "0" ""
else
  printf "  ║  ${GREEN}✓  Ingen VM/SQL idle-kost${NC}%*s${CYAN}${BOLD}  ║${NC}\n" "10" ""
fi

printf "${CYAN}${BOLD}  ╚══════════════════════════════════════╝${NC}\n"
printf "  ${DIM}Full audit: bash scripts/cost-audit.sh${NC}\n\n"