import { GEDCStruct, g7ConfGEDC } from "./gedcstruct.js"

import { G7Lookups } from './g7lookups.js'

import { G7Dataset } from './g7structure.js'

const addError = (msg) => {

const li = document.createElement('li')

li.append(msg)

document.getElementById('errors').append(li)

}

const addWarning = (msg) => {

const li = document.createElement('li')

li.append(msg)

document.getElementById('warnings').append(li)

}

window.validateFile = fileList => {

if (!window.g7validation) {

addError("Failed to load GEDCOM 7 validation data from <a href='https://github.com/FamilySearch/GEDCOM-registries'>GEDCOM-registries/generated_files/g7validation.json</a>, which is required to perform validation")

return

}

window.g7v = new G7Lookups(g7validation)

if (!window.g7v) {

addError("Failed to parse GEDCOM 7 validation data from <a href='https://github.com/FamilySearch/GEDCOM-registries'>GEDCOM-registries/generated_files/g7validation.json</a>, which is required to perform validation")

return

}

g7v.err = addError

g7v.warn = addWarning

document.getElementById('errors').innerHTML = ''

document.getElementById('warnings').innerHTML = ''

if (fileList.length != 1) return

var fr = new FileReader();

fr.addEventListener('load', evt => {

var data = evt.target.result

try {

window.gedc = GEDCStruct.fromString(data, g7ConfGEDC, g7v.err)

if (!Array.isArray(window.gedc) || window.gedc.length == 0) {

addError("File does not appear to contain GEDCOM data")

}

if (document.getElementById('errors').childElementCount > 0) {

addWarning("Errors parsing syntax; version 7 structures not checked")

} else {

window.ged7 = G7Dataset.fromGEDC(gedc, g7v)

}

} catch(error) {

addError(error.message+"\nUnrecoverable error; parsing halted")

}

})

fr.readAsText(fileList[0], 'utf-8')

}

window.addEventListener('load', async () => {

const url = 'https://raw.githubusercontent.com/FamilySearch/GEDCOM-registries/main/generated_files/g7validation.json'

window.g7validation = await fetch(url).then(res => res.json())

})