<script lang="ts">
    import Services from '$lib/services.json'
    import JellyfinAuthBox from './jellyfinAuthBox.svelte'
    import { newestAlert } from '$lib/stores.js'
    import type { PageServerData } from './$types.js'
    import type { SubmitFunction } from '@sveltejs/kit'
    import { getDeviceUUID } from '$lib/utils'
    import { SvelteComponent, type ComponentType } from 'svelte'
    import ConnectionProfile from './connectionProfile.svelte'
    import { enhance } from '$app/forms'
    import { PUBLIC_YOUTUBE_API_CLIENT_ID } from '$env/static/public'

    export let data: PageServerData
    let connections = data.userConnections

    const authenticateJellyfin: SubmitFunction = ({ formData, cancel }) => {
        const { serverUrl, username, password } = Object.fromEntries(formData)

        if (!(serverUrl && username && password)) {
            $newestAlert = ['caution', 'All fields must be filled out']
            return cancel()
        }
        try {
            formData.set('serverUrl', new URL(serverUrl.toString()).origin)
        } catch {
            $newestAlert = ['caution', 'Server URL is invalid']
            return cancel()
        }

        const deviceId = getDeviceUUID()
        formData.append('deviceId', deviceId)

        return ({ result }) => {
            if (result.type === 'failure') {
                return ($newestAlert = ['warning', result.data?.message])
            } else if (result.type === 'success') {
                const newConnection: Connection = result.data!.newConnection
                connections = [...connections, newConnection]

                newConnectionModal = null
                return ($newestAlert = ['success', `Added ${Services[newConnection.service.type].displayName}`])
            }
        }
    }

    const authenticateYouTube: SubmitFunction = async ({ formData, cancel }) => {
        const googleLoginProcess = (): Promise<string> => {
            return new Promise((resolve) => {
                // @ts-ignore (google variable is a global variable imported by html script tag)
                const client = google.accounts.oauth2.initCodeClient({
                    client_id: PUBLIC_YOUTUBE_API_CLIENT_ID,
                    scope: 'https://www.googleapis.com/auth/youtube',
                    ux_mode: 'popup',
                    callback: (response: any) => {
                        resolve(response.code)
                    },
                })
                client.requestCode()
            })
        }

        const code = await googleLoginProcess()
        if (!code) cancel()
        formData.append('code', code)

        return ({ result }) => {
            if (result.type === 'failure') {
                return ($newestAlert = ['warning', result.data?.message])
            } else if (result.type === 'success') {
                const newConnection: Connection = result.data!.newConnection
                connections = [...connections, newConnection]
                return ($newestAlert = ['success', 'Added Youtube Music'])
            }
        }
    }

    const profileActions: SubmitFunction = ({ action, cancel }) => {
        console.log(action)
        cancel()

        return ({ result }) => {
            if (result.type === 'failure') {
                return ($newestAlert = ['warning', result.data?.message])
            } else if (result.type === 'success') {
                const id = result.data!.deletedConnectionId
                const indexToDelete = connections.findIndex((connection) => connection.id === id)
                const serviceType = connections[indexToDelete].service.type

                connections.splice(indexToDelete, 1)
                connections = connections

                return ($newestAlert = ['success', `Deleted ${Services[serviceType].displayName}`])
            }
        }
    }

    let newConnectionModal: ComponentType<SvelteComponent<{ submitFunction: SubmitFunction }>> | null = null
</script>

<main>
    <section class="mb-8 rounded-lg px-4" style="background-color: rgba(82, 82, 82, 0.25);">
        <h1 class="py-2 text-xl">Add Connection</h1>
        <div class="flex flex-wrap gap-2 pb-4">
            <button class="add-connection-button h-14 rounded-md" on:click={() => (newConnectionModal = JellyfinAuthBox)}>
                <img src={Services.jellyfin.icon} alt="{Services.jellyfin.displayName} icon" class="aspect-square h-full p-2" />
            </button>
            <form method="post" action="?/youtubeMusicLogin" use:enhance={authenticateYouTube}>
                <button class="add-connection-button h-14 rounded-md">
                    <img src={Services['youtube-music'].icon} alt="{Services['youtube-music'].displayName} icon" class="aspect-square h-full p-2" />
                </button>
            </form>
        </div>
    </section>
    <div id="connection-profile-grid" class="grid gap-8">
        {#each connections as connection}
            <ConnectionProfile {connection} submitFunction={profileActions} />
        {/each}
    </div>
    {#if newConnectionModal !== null}
        <svelte:component this={newConnectionModal} submitFunction={authenticateJellyfin} on:close={() => (newConnectionModal = null)} />
    {/if}
</main>

<style>
    .add-connection-button {
        background-image: linear-gradient(to bottom, rgb(30, 30, 30), rgb(10, 10, 10));
    }
    #connection-profile-grid {
        grid-template-columns: repeat(auto-fit, minmax(24rem, 1fr));
    }
</style>
