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path: root/frontend/ts/src/pages/map/markerForm.ts
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import { h, Html, Rx } from 'lib/rx'
import * as rx from 'lib/rx'
import * as request from 'request'
import * as modal from 'ui/modal'
import * as layout from 'ui/layout'
import * as markerModel from 'models/marker'
import * as form from 'lib/form'
import * as icons from 'lib/icons'
import * as L from 'lib/loadable'

interface MarkerFormParams {
    lat: number
    lng: number
    marker?: markerModel.Marker
    colors: Array<string>
    label: string
    req: (body: string) => Promise<markerModel.Marker>
    onSuccess: (m: markerModel.Marker) => void
    onClose: () => void
    lastUserAdded?: markerModel.Marker
    onDeleteMarker?: () => void
}

export function view({ lat, lng, marker, colors, label, req, onSuccess, onClose, lastUserAdded, onDeleteMarker }: MarkerFormParams): Html {
    const initName = marker?.name || ''
    const initDescription = marker?.description || ''
    const initColor = marker?.color || lastUserAdded?.color || (colors.length > 0 ? colors[0] : '#3584e4')
    const initIcon = marker?.icon || ''
    const initRadius = marker?.radius || 0

    const isCreation = marker === undefined

    const iconValues: { [key: string]: string } = {}
    Object.keys(icons.values).forEach(key => iconValues[key] = icons.values[key].name)

    return modal.view({
        header: marker == undefined ? 'Nouveau marqueur' : 'Modification du marqueur',
        body: rx.withState7<string, string, string, string, number, L.Loadable<void>, L.Loadable<void>>(
            [initName, initDescription, initColor, initIcon, initRadius, L.init, L.init],
            (nameVar, descriptionVar, colorVar, iconVar, radiusVar, updateReqVar, deleteReqVar) =>
                h('form',
                    {
                        onsubmit: rx.map5([nameVar, descriptionVar, colorVar, iconVar, radiusVar], (name, description, color, icon, radius) =>
                            (event: Event) => {
                                event.preventDefault()
                                updateReqVar.update(_ => L.loading)
                                const payload = { lat, lng, color, name, description, icon, radius }

                                req(JSON.stringify(payload))
                                    .then((m: markerModel.Marker) => {
                                        updateReqVar.update(_ => L.loaded(undefined))
                                        onSuccess(m)
                                    })
                                    .catch(({ message }) => updateReqVar.update(_ => L.failure(message)))
                            }
                        )
                    },
                    form.input({
                        label: 'Nom',
                        select: isCreation,
                        initValue: initName,
                        onUpdate: value => {
                            nameVar.update(_ => value)
                            updateReqVar.update(_ => L.init)
                            deleteReqVar.update(_ => L.init)
                        }
                    }),
                    form.textarea({
                        label: 'Description',
                        initValue: initDescription,
                        onUpdate: value => {
                            descriptionVar.update(_ => value)
                            updateReqVar.update(_ => L.init)
                            deleteReqVar.update(_ => L.init)
                        }
                    }),
                    colorSection({
                        colorRx: colorVar,
                        colors,
                        onUpdateColor: color => {
                            colorVar.update(_ => color)
                            updateReqVar.update(_ => L.init)
                            deleteReqVar.update(_ => L.init)
                        }
                    }),
                    layout.columns([
                        form.select({
                            label: 'Icône',
                            initValue: initIcon,
                            values: iconValues,
                            onUpdate: value => {
                                iconVar.update(_ => value)
                                updateReqVar.update(_ => L.init)
                                deleteReqVar.update(_ => L.init)
                            }
                        }),
                        form.input({
                            type: 'number',
                            label: 'Radius',
                            initValue: initRadius.toString(),
                            onUpdate: value => {
                                radiusVar.update(_ => parseInt(value) || 0)
                                updateReqVar.update(_ => L.init)
                                deleteReqVar.update(_ => L.init)
                            }
                        })
                    ]),
                    form.error(updateReqVar),
                    form.error(deleteReqVar),
                    form.submit({
                        label,
                        className: 'g-Button--FullWidth',
                        requestVar: updateReqVar,
                        disabled: deleteReqVar.map(l => l != L.init)
                    }),
                    marker !== undefined && onDeleteMarker !== undefined && form.button({
                        style: 'margin-top: 1rem',
                        label: 'Supprimer',
                        className: 'g-Button--FullWidth g-Button--Danger',
                        requestVar: deleteReqVar,
                        disabled: updateReqVar.map(l => l != L.init),
                        onClick: () => {
                            deleteReqVar.update(_ => L.loading)
                            request
                                .del_(`/api/markers/${marker.id}`)
                                .then(_ => onDeleteMarker())
                                .catch(({ message }) => updateReqVar.update(_ => L.failure(message)))
                        }
                    })
                )
        ),
        onClose: onClose
    })
}

interface ColorSectionParams {
    colorRx: Rx<string>,
    colors: Array<string>,
    onUpdateColor: (color: string) => void,
}

function colorSection({ colorRx, colors, onUpdateColor }: ColorSectionParams): Html {
    return h('label',
        { className: 'g-Label' },
        'Couleur',
        h('div',
            { className: 'g-ColorLine' },
            h('input',
                {
                    type: 'color',
                    className: 'g-Input',
                    oninput: (event: Event) => onUpdateColor((event.target as HTMLInputElement).value),
                    value: colorRx
                }
            ),
            h('div',
                { className: 'g-ColorButtons' },
                colors.map(c =>
                    h('input',
                        {
                            type: 'button',
                            className: 'g-ColorButton',
                            style: `background-color: ${c}`,
                            onclick: (event: Event) => onUpdateColor(c)
                        }
                    )
                )
            )
        )
    )

}