#!/bin/python3
import sys,os,re
from func import *
from config import *

def add():
    args=[]
    for i in ["Filepath","Category","Title","Source","Tags","Content"]:
        eingabe = input("Enter {}: ".format(i))
        if i in ["Filepath"] and not eingabe:
            print("{} has to not be empty!".format(i))
            return 1
        if i in ["Category"] and not eingabe:
            print("{} set to 'default'".format(i))
            eingabe="default"
        args.append(eingabe)
    tb.add_index(args[0],args[1],args[2],args[3],args[4],args[5])

def check(args):
    success=0
    if not args:
        hash_list,path_list=tb.check_index()
    if hash_list:
        print("{} file{} faulty!".format(len(hash_list),"s are" if len(hash_list) > 1 else " is"))
        success=-1
    if path_list:
        print("{} file{} missing!".format(int(len(path_list)/2),"s are" if int(len(path_list)/2) > 1 else " is"))
        success=-1
    if success >= 0:
        print("Everything is good!")
    if hash_list:
        eingabe=input("Do you want to remove the faulty files? [y/N]: ")
        if re.match('[yY]',eingabe):
            print("Removing faulty files...")
            repair(hash_list)
    if path_list:
        eingabe=input("Do you want to remove the orphaned entries? [Y/n]: ")
        if not re.match('[nN]',eingabe):
            print("Removing orphaned entries...")
            repair(path_list)

def delete(args):
    selection=search(args,True)
    for sel in selection:
        if sel[0] != ".":
            try:
                category=sel[4]
                filename=sel[0]
                os.remove("{}/{}/{}".format(ROOT_DIR,category,filename))
            except Exception as e:
                print(e)
                print("Couldn't delete a file!")
                return 1
            tb.delete_index(sel)

def help():
            print("SYNTAX:\n\t'image-index <option> [args]' executes the command")
            print("\nOPTIONS:\n\thelp:\tdisplays this prompt")
            #print("\tmeta:\tdisplays help for the metadata thing")
            print("\tadd:\tadds a new entry;\n\t\tInstant: image-index add <filepath> <category> <title> <source> <tags> <content>")
            print("\t\tPrompt:  image-index add")
            print("\tcheck:\tchecks the existence and correctness of all files in the index;\n\t\tSyntax: image-index check")
            print("\tdelete:\tdeletes a file and entry based on a search query;\n\t\tInstant: image-index delete <words/filters>")
            print("\t\tPrompt:  image-index delete")
            print("\tsearch:\tsearches through the index (use prompt for list of filters);\n\t\tInstant: image-index search <words/filters>")
            print("\t\tPrompt:  image-index search")
            print("\tupdate:\tchanges specific column based on a search query;\n\t\tInstant: image-index update <column> <updated_value> <words/filters>")
            print("\t\tPrompt:  image-index update")

def meta(args):
    command=args[0]
    args=args[1:]

def update(args):
    if len(args) > 2:
        typ=args[0]
        update=args[1]
        args=args[2:]
        selection=search(args,True)
    elif len(args) == 2:
        typ=args[0]
        update=args[1]
        selection=search([],True)
    elif len(args) == 1:
        typ=args[0]
        update=input("Enter the updated string: ")
        selection=search([],True)
    elif len(args) < 1:
        typ=input("Enter the column: ")
        update=input("Enter the update: ")
        selection=search([],True)
    for sel in selection:
        if sel[0] != ".":
            tb.update_index(typ,update,sel)

def repair(err_list):
    sel_list=[]
    for i in err_list:
        print(i)
        if not i in sel_list:
            sel_list.append(i)
    for tup in sel_list:
        filepath="{}/{}/{}".format(ROOT_DIR,tup[4],tup[0])
        if os.path.exists(filepath):
            os.remove(filepath)
        tb.delete_index(tup)
        
def search(args,quiet=False):
    if len(args) == 0:
        print("Separate the items with spaces ( )")
        print("FILTERS: -a: All types")
        print("\t -c: Category")
        print("\t -f: Filename")
        print("\t -g: Tags")
        print("\t -h: Hash")
        print("\t -i: Content")
        print("\t -s: Source")
        print("\t -t: Title")
        args=input("Query: ")
        if len(args) > 0:
            res=tb.search_index(args.split(' '),quiet)
        else:
            print("\nQuery empty!")
            return ["."]
    else:
        tres=tb.search_index(args,quiet)
    if not quiet and tres[0] != ".":
        for res in tres:
            print("Title: ",res[2])
            print("\tSource:\t ",res[3])
            print("\tCategory:",res[4])
            print("\tFilename:",res[0])
            print("\tHash:\t ",res[1])
            print("\tTags:\t ",res[5])
            print("\tContent: ",res[6])
    return tres

def main():
    if len(sys.argv) <= 1 or re.match('[hH].*',sys.argv[1]):
        help()
    else:
        command=sys.argv[1]
        args=[]
        for i in sys.argv[2:]:
            args.append(i)
        if re.match('[aA].*',command):
            if len(sys.argv) == 2:
                add()
            elif len(sys.argv) >= 8:
                tb.add_index(args[0],args[1],args[2],args[3],args[4],args[5])
            else:
                print("Not enough arguments!")
                return
        elif re.match('[mM].*',command):
            meta(args)        
        elif re.match('[cC].*',command):
            check(args)
        elif re.match('[dD].*',command):
            delete(args)
        elif re.match('[sS].*',command):
            search(args)
        elif re.match('[uU].*',command):
            update(args)
        else:
            print("No such option!")
        tb.connection.close()
        mtb.connection.close()
    #for i in sys.argv:
    #    print("Arg:" + i)
    input("Press return...")

if __name__ == "__main__":
    filepath=CONFIG_DIR + '/index.db'
    tb = filestable()
    mtb = metatable()
    main()