#!/bin/bash

get_device_info() {
    local pci_addr=$1
    local info=$(lspci -s "$pci_addr")
    echo "$info"
}

get_drive_details() {
    local device=$1
    local size=$(lsblk -d -o NAME,SIZE | grep "$device" | awk '{print $2}')
    echo "$size"
}

get_drive_smart_info() {
    local device=$1
    local smart_info=$(sudo smartctl -A -i -H /dev/$device 2>/dev/null)
    local temp=$(echo "$smart_info" | grep "Temperature" | awk '{print $10}' | head -1)
    local type=$(echo "$smart_info" | grep "Rotation Rate" | grep -q "Solid State" && echo "SSD" || echo "HDD")
    local health=$(echo "$smart_info" | grep "SMART overall-health" | grep -q "PASSED" && echo "✓" || echo "✗")
    local model=$(echo "$smart_info" | grep "Device Model" | cut -d: -f2 | xargs)
    
    echo "$type|$temp°C|$health|$model"
}

get_drives_info() {
    local path="/dev/disk/by-path"
    for drive in "$path"/*; do
        if [ -L "$drive" ]; then
            echo "$(basename "$drive") $(readlink -f "$drive")"
        fi
    done
}

# Get physical slot mapping from system
get_physical_mapping() {
    # Map NVMe drives
    local nvme_info=$(ls -l /dev/disk/by-path/pci-0000:0d:00.0* 2>/dev/null)
    
    # Map SATA hot-swap bays using sg_ses or other tools
    local hotswap_info=$(ls -l /dev/disk/by-path/pci-0000:0c:00.0-ata-* 2>/dev/null)
    
    # Map USB devices
    local usb_info=$(ls -l /dev/disk/by-path/pci-0000:0b:00.0-usb* 2>/dev/null)
    
    # Use smartctl to get drive details
    for drive in $(echo "$hotswap_info" | awk -F'/' '{print $NF}'); do
        local smart_info=$(get_drive_smart_info "$drive")
        local size=$(get_drive_details "$drive")
        # Map drive details to physical location
    done
}

declare -A DRIVE_MAPPINGS=(
    ["medium2"]="
        pci-0000:0c:00.0-ata-1:1
        pci-0000:0c:00.0-ata-2:2
        pci-0000:0c:00.0-ata-3:3
        pci-0000:0c:00.0-ata-4:4
        pci-0000:0d:00.0-nvme-1:11
    "
    ["large1"]=""
    ["medium1"]=""
)

build_drive_map() {
    local host=$(hostname)
    local drive_map=()
    
    # Get mapping for current host
    local mapping=${DRIVE_MAPPINGS[$host]}
    
    if [[ -n "$mapping" ]]; then
        while read -r path_slot; do
            [[ -z "$path_slot" ]] && continue
            local path=${path_slot%:*}
            local slot=${path_slot#*:}
            
            if [[ -L "/dev/disk/by-path/$path" ]]; then
                local drive=$(readlink -f "/dev/disk/by-path/$path" | sed 's/.*\///')
                drive_map+=("${slot}:${drive}")
            fi
        done <<< "$mapping"
    fi
}


# Define the ASCII art maps
large1=''' 
┌─────────────────────────────────────────────────────────────┐
│                           large1                            │
│                                                             │
│ ┌──────────────────────────────────────────────┐            │
│ │               Motherboard                    │            │
│ │                                              │            │
│ │                                  ┌──┐┌──┐    │            │
│ │                                  │M1││M2│    │            │
│ │                                  └──┘└──┘    │            │
│ └──────────────────────────────────────────────┘            │
│                                                             │
│ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │
│ │                 │ │                 │ │                 │ │
│ │       1         │ │        2        │ │        3        │ │
│ │                 │ │                 │ │                 │ │
│ └─────────────────┘ └─────────────────┘ └─────────────────┘ │
│ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │
│ │                 │ │                 │ │                 │ │
│ │       4         │ │        5        │ │        6        │ │
│ │                 │ │                 │ │                 │ │
│ └─────────────────┘ └─────────────────┘ └─────────────────┘ │
│ ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │
│ │                 │ │                 │ │                 │ │
│ │       7         │ │        8        │ │        9        │ │
│ │                 │ │                 │ │                 │ │
│ └─────────────────┘ └─────────────────┘ └─────────────────┘ │
└─────────────────────────────────────────────────────────────┘
'''

medium1=''' 
┌─────────────────────────────────────────────────────────────┐
│                                                             │
│ ┌────────────┐ ┌────────────┐ ┌────────────┐ ┌────────────┐ │
│ │     1      │ │     2      │ │      3     │ │     4      │ │
│ └────────────┘ └────────────┘ └────────────┘ └────────────┘ │
│                                                             │
│ ┌────────────┐ ┌────────────┐ ┌────────────┐ ┌────────────┐ │
│ │     5      │ │     6      │ │      7     │ │     8      │ │
│ └────────────┘ └────────────┘ └────────────┘ └────────────┘ │
│                                                             │
│                                                             │
│                                                             │
│                                                 ┌─────────┐ │
│                           medium1               │    9    │ │
│                                                 └─────────┘ │
│                                                 ┌─────────┐ │
│                                                 │   10    │ │
│                                                 └─────────┘ │
│                                                             │
└─────────────────────────────────────────────────────────────┘
'''

generate_medium2_layout() {
    # USB Section
    printf "    External USB [0b:00.0]\n"
    printf "    ┌────────┐ ┌────────┐\n"
    usb_drives=$(ls -l /dev/disk/by-path/pci-0000:0b:00.0-usb* 2>/dev/null | awk -F'/' '{print $NF}')
    if [ -n "$usb_drives" ]; then
        read -r drive1 drive2 <<< $(echo "$usb_drives")
        printf "    │ %-6s │ │ %-6s │\n" "${drive1:-EMPTY}" "${drive2:-EMPTY}"
    fi
    printf "    └────────┘ └────────┘\n\n"

    # Main chassis
    printf "┌──────────────────────────────────────────────────────────────┐\n"
    printf "│                     B650D4U3-2Q/BCM                          │\n"
    printf "│                                                              │\n"
    printf "│    NVMe [0d:00.0] Bay 11                                        │\n"
    printf "│    ┌────────┐                                               │\n"
    printf "│    │ %-6s │                                               │\n" "${drive_map[11]:-nvme0n1}"
    printf "│    └────────┘                                               │\n"
    printf "│                                                              │\n"
    printf "│    Front Hot-swap Bays [0c:00.0]                            │\n"
    printf "│ ┌────────┐┌────────┐┌────────┐┌────────┐┌────────┐┌────────┐┌────────┐┌────────┐┌────────┐┌────────┐ │\n"
    
    # Show slot numbers and drives
    for bay in {1..10}; do
        local drive="EMPTY"
        for mapping in "${drive_map[@]}"; do
            if [[ $mapping == "$bay:"* ]]; then
                drive="${mapping#*:}"
                break
            fi
        done
        printf "│ │%-2d:%-4s │" "$bay" "$drive"
    done
    printf " │\n"
    printf "│ └────────┘└────────┘└────────┘└────────┘└────────┘└────────┘└────────┘└────────┘└────────┘└────────┘ │\n"
    printf "└──────────────────────────────────────────────────────────────┘\n"
}


microGeneric=''' 
 ┌─┐  ┌─┐ 
┌└─┘──└─┘┐
│ 1    2 │
│        │
│        │
│        │
│        │
│        │
│        │
│        │
└────────┘
'''

# Get the hostname
HOSTNAME=$(hostname)

# ASCII art based on hostname
case "$HOSTNAME" in
    "large1")
        echo -e "$large1"
        ;;
    "medium1")
        echo -e "$medium1"
        ;;
    "medium2")
        generate_medium2_layout
        ;;
    "micro1" | "micro2")
        echo -e "$microGeneric"
        ;;
    *)
        echo -e "No ASCII map defined for this hostname."
        ;;
esac

map_drives_to_layout() {
    local server_type=$1
    case $server_type in
        "large1")
            for i in {1..9}; do
                local drive_info=$(get_drive_info_for_position $i)
                echo "Position $i: $drive_info"
            done
            ;;
    esac
}

#get_drive_details() {
#    local position=$1
#    # Get drive info from lsblk and nvme list
#    local drive_info=$(lsblk -d -o NAME,SIZE,TYPE | grep "disk")
#    local nvme_info=$(sudo nvme list 2>/dev/null)
#    
#    # Map position to drive using DRIVE_PATHS
#    local drive_path=$(echo "$DRIVE_PATHS" | grep "position$position" || echo "")
#    
#    if [ -z "$drive_path" ]; then
#        echo "[EMPTY]"
#        return
#    fi
#    
#    local device_name=$(basename $(readlink -f "$drive_path"))
#    local size=$(echo "$drive_info" | grep "$device_name" | awk '{print $2}')
#    
#    echo "$device_name $size"
#}

# Enhanced Drive Information Function

update_ascii_layout() {
    local layout="$1"
    
    for i in {1..9}; do
        local drive_details=$(get_drive_details $i)
        if [[ "$drive_details" == "[EMPTY]" ]]; then
            layout=${layout//│       $i         │/│    [EMPTY]     │}
        else
            layout=${layout//│       $i         │/│    $drive_details    │}
        fi
    done
    
    # Update NVMe slots in motherboard
    local nvme1=$(get_drive_details "nvme0")
    local nvme2=$(get_drive_details "nvme1")
    layout=${layout//│M1│/│${nvme1:0:3}│}
    layout=${layout//│M2│/│${nvme2:0:3}│}
    
    echo "$layout"
}

DRIVE_PATHS=$(get_drives_info | awk '{print $1, $2}')

# Initialize array for "not found" messages
not_found=()

# Show NVMe Drives only if present
nvme_drives=$(sudo nvme list | grep "^/dev")
if [ -n "$nvme_drives" ]; then
    echo -e "\n=== NVMe Drives ===\n"
    printf "%-15s %-10s %-10s %-20s\n" "DEVICE" "SIZE" "TYPE" "MODEL"
    echo "------------------------------------------------------------"
    echo "$nvme_drives" | awk '{printf "%-15s %-10s %-10s %-20s\n", $1, $6, "NVMe", $3}'
else
    not_found+=("NVMe drives")
fi

# Show MMC Drives only if present
mmc_output=$(lsblk -o NAME,SIZE,TYPE,MOUNTPOINT | grep "mmcblk" | sort)
if [ -n "$mmc_output" ]; then
    echo -e "\n=== MMC Drives ===\n"
    printf "%-15s %-10s %-10s %-20s\n" "DEVICE" "SIZE" "TYPE" "MOUNTPOINT"
    echo "------------------------------------------------------------"
    echo "$mmc_output"
fi

# Show SATA Drives only if present
sata_output=$(lsblk -d -o NAME,SIZE,TYPE,MOUNTPOINT | grep "disk" | grep -v "nvme" | grep -v "rbd" | sort | column -t)s
if [ -n "$sata_output" ]; then
    echo -e "\n=== SATA Drives ===\n"
    printf "%-15s %-10s %-10s %-20s\n" "DEVICE" "SIZE" "TYPE" "MOUNTPOINT"
    echo "------------------------------------------------------------"
    echo "$sata_output"
fi

# Show Ceph RBD Devices only if present
rbd_output=$(lsblk -o NAME,SIZE,TYPE,MOUNTPOINT | grep "rbd" | sort -V)
if [ -n "$rbd_output" ]; then
    echo -e "\n=== Ceph RBD Devices ===\n"
    printf "%-15s %-10s %-10s %-20s\n" "DEVICE" "SIZE" "TYPE" "MOUNTPOINT"
    echo "------------------------------------------------------------"
    echo "$rbd_output"
else
    not_found+=("RBD devices")
fi

# Check RAID
if ! [ -f /proc/mdstat ] || ! grep -q "active" /proc/mdstat; then
    not_found+=("Software RAID")
fi

# Check ZFS
if ! command -v zpool >/dev/null 2>&1 || [ -z "$(sudo zpool status 2>/dev/null)" ]; then
    not_found+=("ZFS pools")
fi

# Display consolidated "not found" messages at the end
if [ ${#not_found[@]} -gt 0 ]; then
    echo -e "\n=== Not Found ===\n"
    printf "%s\n" "${not_found[@]}"
fi