#!/usr/bin/env bash

SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
source $SCRIPT_DIR/constants.sh
source $ROOT_DIR/run/evo/constants.sh
source $SCRIPT_DIR/functions.sh

# Setup logging
setup_logging

# Trap signals to ensure proper cleanup
trap 'cleanup 1' HUP INT QUIT TERM

# Delete products from vk which were deleted from evo.
# loop across vk products.

vkPath=$VK_PRODUCTS_PATH/$VK_API_GROUP_ID
vkFileName=`ls $vkPath -Art | tail -1`
vkFilePath=$vkPath/$vkFileName

evoPath=$EVO_PRODUCTS_PATH/$EVO_API_STORE_ID
evoFileName=`ls $evoPath -Art | tail -1`
evoFilePath=$evoPath/$evoFileName

hasEvoItems=`yq '. | has("items")' $evoFilePath`
if ! $hasEvoItems; then
    cleanup 1
fi

# Build associative array of EVO product names (transformed)
declare -A evoNames
while IFS= read -r line; do
    if [[ -n "$line" ]]; then
        item_name=$(echo "$line" | yq -r '.name')
        if [[ -n "$item_name" && "$item_name" != "null" ]]; then
            transformed_name=$(echo "$item_name" | xargs)
            transformed_name="${transformed_name//;/,}"
            evoNames["$transformed_name"]=1
        fi
    fi
done < <(yq -o=j -I=0 '.items[]' $evoFilePath)

# Build associative array of VK items by name (transformed)
declare -A vkItemsByName
readarray vkItems < <(yq -o=j -I=0 '.response.items[]' $vkFilePath )
for vkItem in "${vkItems[@]}"; do
    vkItemName=$(echo $vkItem | yq .title | xargs)
    vkItemName="${vkItemName//;/,}"
    vkItemId=$(echo $vkItem | yq .id)
    # Store VK item IDs by name (append to comma-separated list)
    if [[ -n "${vkItemsByName[$vkItemName]}" ]]; then
        vkItemsByName[$vkItemName]="${vkItemsByName[$vkItemName]},$vkItemId"
    else
        vkItemsByName[$vkItemName]="$vkItemId"
    fi
done

# For each VK name, check if it exists in EVO
for vkName in "${!vkItemsByName[@]}"; do
    IFS=',' read -ra ids <<< "${vkItemsByName[$vkName]}"
    if [[ -n "${evoNames[$vkName]}" ]]; then
        # If multiple VK items for this name, keep the oldest (first), delete the rest
        if (( ${#ids[@]} > 1 )); then
            for ((i=1; i<${#ids[@]}; i++)); do
                vkItemId="${ids[$i]}"
                echo "$(timestamp) [REQUEST] Deleting duplicate product: $vkName (id=$vkItemId)" >> "$LOG_FILE"
                response=$(curl -s -w "%{http_code}" -H "Authorization: Bearer $VK_API_USER_TOKEN" \
                     -F owner_id=$VK_API_PARAM_OWNER_ID \
                     -F item_id=$vkItemId \
                     $VK_API_DELETE_PRODUCT)
                http_code=${response: -3}
                response_body=${response:0:-3}
                echo "$(timestamp) [RESPONSE] code=$http_code body=$response_body" >> "$LOG_FILE"
            done
        fi
    else
        # If VK name not in EVO, delete all VK items for this name
        for vkItemId in "${ids[@]}"; do
            echo "$(timestamp) [REQUEST] Deleting product not in EVO: $vkName (id=$vkItemId)" >> "$LOG_FILE"
            response=$(curl -s -w "%{http_code}" -H "Authorization: Bearer $VK_API_USER_TOKEN" \
                 -F owner_id=$VK_API_PARAM_OWNER_ID \
                 -F item_id=$vkItemId \
                 $VK_API_DELETE_PRODUCT)
            http_code=${response: -3}
            response_body=${response:0:-3}
            echo "$(timestamp) [RESPONSE] code=$http_code body=$response_body" >> "$LOG_FILE"
        done
    fi
done

# Use the cleanup function instead of directly exiting
cleanup 0