from datetime import datetime
from flask import render_template, jsonify, redirect, request
from FinalProject import app
import os, json

filename = "techDB"

@app.route('/')
@app.route('/home')
def home():
    """Renders the home page."""
    return render_template(
        'index.html',
        title='Home Page',
        year=datetime.now().year,
    )

@app.route('/contact')
def contact():
    """Renders the contact page."""
    return render_template(
        'contact.html',
        title='Contact',
        year=datetime.now().year,
        message='Your contact page.'
    )

# The page for adding data to the .json file.
@app.route('/addtech')
def tech():
    return render_template(
        'addtech.html',
        title='Add technique'
        )

# When the form is filled out and the submit button is pressed this route is called and the data is added to
# the temp dictionary which is then added to the databse using the addToJson function.
@app.route('/addtech', methods = ['POST'])
def addtech():
    techName = request.form['techname']

    tempDictionary = {}
    tempDictionary['techs'] = []
    tempDictionary['techs'].append({
        'techname': request.form['techname'],
        'startingpos': request.form['startpos'],
        'startinggrips': request.form['startgrip'],
        'endpos': request.form['endpos'],
        'endgrip': request.form['endgrip'],
        'videolink': request.form['videolink']
        })

    addToJson(tempDictionary)

    return redirect ('/done/'+techName)


@app.route('/about')
def about():
    """Renders the about page."""
    return render_template(
        'about.html',
        title='About',
        year=datetime.now().year,
        message='Your application description page.'
    )

# Displays a thank you page
@app.route('/done/<name>')
def done(name):
    return render_template(
        'done.html',
        name=name,
        title='Thanks for adding ' +name +' to our collection!'
        )

# Retrieves the entire databse in .json format
@app.route('/collection/api')
def collection():

    print(json.dumps(GetUserInfo(), indent=4, sort_keys=True))
    return jsonify(GetUsesrInfo())

# Retrieves all objects matching the search query in .json format
@app.route('/collection/api/<techname>')
def collection(techname):
    print(json.dump(GetJsonTech(techname), indent=4, sort_keys=True))
    return jsonify(GetJsonTech(techname)

# This function takes in a dictionary and writes those values to the specified database, in this case techDB.json
def addToJson (_dictionary):
    checkData()

    with open(filename+".json", 'r+') as infile:
        data = json.load(infile)
        infile.close()
        pass

    data['techs'].append(_dictionary["techs"][0])

    with open(filename+".json", "w") as outfile:
        json.dump(data, outfile)
        outfile.close()
        pass

    print("Technique has been added.")
    pass

# This function verifies the .json. If the file exists we can use it, if not we create it.
def checkData():
    if not os.path.exists(filename+".json"):
        file = open(filename+".json", 'w+')
        file.write("{\"techs\": []}")
        file.close()
        pass
    pass

# This function gets all the info in the techDB and returns it.
def GetUserInfo():
    checkData()

    with open(filename+".json", "r") as infile:
        data = json.load(infile)
        infile.close()
        pass

    return data

# This function gets the specified user and returns it.
def GetJsonTech(_techname):
    checkData()

    with open(filename+".json", "r") as infile:
       data = json.load(infile)
       infile.close()
       pass

    for tech in data['techs']:
        if tech.get('techname') == _techname:
            return {"Technique": tech  }
        pass

    return None

    pass