#!/bin/sh

set -eu

# Always load functions
# Helper functions
. "sh/helper.sh"
# iCalendar routines
. "sh/icalendar.sh"
# Attachment handling
. "sh/attachment.sh"
# Categories handling
. "sh/categories.sh"

# Load environment variables only when not yet loaded
if [ ! "${SCRIPT_LOADED:-}" ]; then
  # Read configuration
  . "sh/config.sh"
  # Read theme
  . "sh/theme.sh"
  # Load awk scripts
  . "sh/awkscripts.sh"
  # Mark as loaded
  export SCRIPT_LOADED=1
fi

__lines() {
  find "$ROOT" -mindepth 2 -maxdepth 2 -type f -name '*.vcf' -print0 | xargs -0 -P 0 \
    awk \
    -v collection_labels="$COLLECTION_LABELS" \
    -v nickname_format="$FORMAT_NICKNAME" \
    -v fn_format="$FORMAT_FN" \
    -v group_label="$FLAG_GROUP" \
    -v org_label="$FLAG_ORGANIZATION" \
    -v location_label="$FLAG_LOCATION" \
    -v individual_label="$FLAG_INDIVIDUAL" \
    "$AWK_LIST" |
    sort -g
}

# Program starts here
if [ "${1:-}" = "--help" ]; then
  bn="$(basename "$0")"
  shift
  echo "Usage: $bn [OPTION] [FILTER]...

[OPTION]
    --help                        Show this help and exit

  Git Integration:
    --git-init                    Activate git usage and exit
    --git <cmd>                   Run git command and exit

  Interactive Mode:
    --new [FILTER..]              Create new entry interactively and start
    [FILTER..]                    Start with the specified filter

  Non-Interactive Mode:
    --list [FILTER..]             List entries and exit
    --import <file>               Import vCard file and exit
    --collection <nr>             Select collection to which to import vCard
                                  file. The argument <nr> is the ordinal
                                  describing the collection. It defaults to the
                                  starting value of 1.

[FILTER]
  You may specify any of these filters. Filters can be negated using the
  --no-... versions, e.g., --no-individuals. Multiple filters are applied in
  conjuction.

  --individuals                   Show individuals only
  --groups                        Show groups only
  --organizations                 Show organizations only
  --locations                     Show locations only
  --filter <query>                Specify custom query

Examples:
  $bn --git log
  $bn --new
  $bn --individuals
  $bn --no-locations --filter \"Athens\"
  $bn --list --locations
  $bn --import ./contact.vcf
  $bn --import ./boss.vcf --collection 2
"
  exit
fi

# Command line arguments: Interal use
. "sh/cliinternal.sh"

# Command line arguments
. "sh/cli.sh"

# Parse command-line filter (if any)
. "sh/filter.sh"

if [ -n "${list_option:-}" ]; then
  __lines |
    $FZF \
      --filter="$query" \
      --delimiter="\t" \
      --no-sort \
      --with-nth='{2}  {3} {1}'
  exit 0
fi

# Set terminal title
if [ "$SET_TERMINAL_TITLE" = "yes" ]; then
  printf '\033]0;%s\007' "$TERMINAL_TITLE"
fi

while true; do
  query=$(stripws "$query")
  query="${query:+"$query "}"
  selection=$(
    __lines | $FZF \
      --ansi \
      --query="$query" \
      --delimiter="\t" \
      --no-sort \
      --no-hscroll \
      --reverse \
      --with-nth='{2}  {3} {1}' \
      --print-query \
      --accept-nth=4 \
      --preview="$0 --preview {4}" \
      --expect="ctrl-n,ctrl-alt-d,alt-v,ctrl-a,ctrl-t" \
      --bind="ctrl-r:reload($0 --reload)" \
      --bind="alt-0:change-query()" \
      --bind="alt-1:change-query(${COLLECTION1:-} )" \
      --bind="alt-2:change-query(${COLLECTION2:-} )" \
      --bind="alt-3:change-query(${COLLECTION3:-} )" \
      --bind="alt-4:change-query(${COLLECTION4:-} )" \
      --bind="alt-5:change-query(${COLLECTION5:-} )" \
      --bind="alt-6:change-query(${COLLECTION6:-} )" \
      --bind="alt-7:change-query(${COLLECTION7:-} )" \
      --bind="alt-8:change-query(${COLLECTION8:-} )" \
      --bind="alt-9:change-query(${COLLECTION9:-} )" \
      --bind="alt-i:change-query($FLAG_INDIVIDUAL )" \
      --bind="alt-g:change-query($FLAG_GROUP )" \
      --bind="alt-o:change-query($FLAG_ORGANIZATION )" \
      --bind="alt-l:change-query($FLAG_LOCATION )" \
      --bind="alt-w:toggle-preview-wrap" \
      --bind="/:toggle-preview" \
      --bind="ctrl-d:preview-half-page-down" \
      --bind="ctrl-u:preview-half-page-up" \
      --bind="ctrl-s:execute($SYNC_CMD; [ -n \"${GIT:-}\" ] && ${GIT:-echo} add -A && ${GIT:-echo} commit -am 'Synchronized'; printf 'Press <enter> to continue.'; read -r tmp)" || #--color='preview-bg:#ecc297,preview-fg:black' \
      true
  )

  # Line 1: query
  # Line 2: key ("" for enter)
  # Line 3: relative file path
  lines=$(echo "$selection" | wc -l)
  if [ "$lines" -eq 1 ]; then
    exit 0
  fi
  query=$(echo "$selection" | head -n 1)
  key=$(echo "$selection" | head -n 2 | tail -n 1)
  fname=$(echo "$selection" | head -n 3 | tail -n 1)
  file="$ROOT/$fname"

  case "$key" in
  "ctrl-n")
    __new
    ;;
  "ctrl-alt-d")
    __delete "$file"
    ;;
  "alt-v")
    $EDITOR "$file"
    ;;
  "ctrl-a")
    __attachment_view "$file"
    ;;
  "ctrl-t")
    cat="$(__select_category)"
    [ -n "$cat" ] && query="'$cat'"
    ;;
  "")
    __edit "$file"
    ;;
  esac
done