#!/bin/bash
# Purge paths management functionality
# Opens config file for editing and shows current status

set -euo pipefail

# Get script directory and source dependencies
_MOLE_MANAGE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$_MOLE_MANAGE_DIR/../core/common.sh"
# Only source project.sh if not already loaded (has readonly vars)
if [[ -z "${PURGE_TARGETS:-}" ]]; then
    source "$_MOLE_MANAGE_DIR/../clean/project.sh"
fi

# Config file path (use :- to avoid re-declaration if already set)
PURGE_PATHS_CONFIG="${PURGE_PATHS_CONFIG:-$HOME/.config/mole/purge_paths}"

# Ensure config file exists with helpful template
ensure_config_template() {
    if [[ ! -f "$PURGE_PATHS_CONFIG" ]]; then
        ensure_user_dir "$(dirname "$PURGE_PATHS_CONFIG")"
        cat > "$PURGE_PATHS_CONFIG" << 'EOF'
# Mole Purge Paths - Directories to scan for project artifacts
# Add one path per line (supports ~ for home directory)
# Delete all paths or this file to use defaults
#
# Example:
# ~/Documents/MyProjects
# ~/Work/ClientA
# ~/Work/ClientB
EOF
    fi
}

# Main management function
manage_purge_paths() {
    ensure_config_template

    local display_config="${PURGE_PATHS_CONFIG/#$HOME/~}"

    # Clear screen
    if [[ -t 1 ]]; then
        printf '\033[2J\033[H'
    fi

    echo -e "${PURPLE_BOLD}Purge Paths Configuration${NC}"
    echo ""

    # Show current status
    echo -e "${YELLOW}Current Scan Paths:${NC}"

    # Reload config
    load_purge_config

    if [[ ${#PURGE_SEARCH_PATHS[@]} -gt 0 ]]; then
        for path in "${PURGE_SEARCH_PATHS[@]}"; do
            local display_path="${path/#$HOME/~}"
            if [[ -d "$path" ]]; then
                echo -e "  ${GREEN}✓${NC} $display_path"
            else
                echo -e "  ${GRAY}○${NC} $display_path${GRAY}, not found${NC}"
            fi
        done
    fi

    # Check if using custom config
    local custom_count=0
    if [[ -f "$PURGE_PATHS_CONFIG" ]]; then
        while IFS= read -r line; do
            line="${line#"${line%%[![:space:]]*}"}"
            line="${line%"${line##*[![:space:]]}"}"
            [[ -z "$line" || "$line" =~ ^# ]] && continue
            ((custom_count++))
        done < "$PURGE_PATHS_CONFIG"
    fi

    echo ""
    if [[ $custom_count -gt 0 ]]; then
        echo -e "${GRAY}Using custom config with $custom_count paths${NC}"
    else
        echo -e "${GRAY}Using ${#DEFAULT_PURGE_SEARCH_PATHS[@]} default paths${NC}"
    fi

    echo ""
    echo -e "${YELLOW}Default Paths:${NC}"
    for path in "${DEFAULT_PURGE_SEARCH_PATHS[@]}"; do
        echo -e "  ${GRAY}-${NC} ${path/#$HOME/~}"
    done

    echo ""
    echo -e "${YELLOW}Config File:${NC} $display_config"
    echo ""

    # Open in editor
    local editor="${EDITOR:-${VISUAL:-vim}}"
    echo -e "Opening in ${CYAN}$editor${NC}..."
    echo -e "${GRAY}Save and exit to apply changes. Leave empty to use defaults.${NC}"
    echo ""

    # Wait for user to read
    sleep 1

    # Open editor
    "$editor" "$PURGE_PATHS_CONFIG"

    # Reload and show updated status
    load_purge_config

    echo ""
    echo -e "${GREEN}${ICON_SUCCESS}${NC} Configuration updated"
    echo -e "${GRAY}Run 'mo purge' to clean with new paths${NC}"
    echo ""
}

if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    manage_purge_paths
fi