frontend/app/components/oauth/login.vue

<script setup lang="ts">
import { toTypedSchema } from "@vee-validate/zod";
import type { Instance } from "@versia/client/schemas";
import { Loader } from "lucide-vue-next";
import { useForm } from "vee-validate";
import * as z from "zod";
import {
    FormControl,
    FormField,
    FormItem,
    FormLabel,
    FormMessage,
} from "@/components/ui/form";
import { Button } from "~/components/ui/button";
import { Input } from "~/components/ui/input";
import * as m from "~~/paraglide/messages.js";

const { instance } = defineProps<{
    instance: z.infer<typeof Instance>;
}>();

const isLoading = ref(false);
const ssoConfig = computed(() => instance.sso);

const formSchema = toTypedSchema(
    z.object({
        identifier: z
            .string()
            .min(3, {
                message: m.aware_house_dolphin_win(),
            })
            .or(
                z.string().email({
                    message: m.weary_fresh_dragonfly_bless(),
                }),
            ),
        password: z.string().min(3, {
            message: m.aware_house_dolphin_win(),
        }),
    }),
);

const form = useForm({
    validationSchema: formSchema,
});

const redirectUrl = new URL("/api/auth/login", `https://${instance.domain}`);

const params = useUrlSearchParams();

for (const name of [
    "redirect_uri",
    "response_type",
    "client_id",
    "scope",
    "state",
]) {
    if (params[name]) {
        redirectUrl.searchParams.set(name, params[name] as string);
    }
}

const issuerRedirectUrl = (issuerId: string) => {
    const url = new URL("/oauth/sso", client.value.url);

    for (const name of [
        "redirect_uri",
        "response_type",
        "client_id",
        "scope",
        "state",
    ]) {
        if (params[name]) {
            url.searchParams.set(name, params[name] as string);
        }
    }

    url.searchParams.set("issuer", issuerId);
    return url.toString();
};
</script>

<template>
    <div class="grid gap-6">
        <form
            @submit="form.submitForm"
            method="post"
            :action="redirectUrl.toString()"
        >
            <div class="grid gap-6">
                <FormField v-slot="{ componentField }" name="identifier">
                    <FormItem>
                        <FormLabel>
                            {{ m.fluffy_soft_wolf_cook() }}
                        </FormLabel>
                        <FormControl>
                            <Input
                                placeholder="petergriffin"
                                type="text"
                                auto-capitalize="none"
                                auto-complete="idenfifier"
                                auto-correct="off"
                                :disabled="isLoading"
                                v-bind="componentField"
                            />
                        </FormControl>
                        <FormMessage />
                    </FormItem>
                </FormField>
                <FormField v-slot="{ componentField }" name="password">
                    <FormItem>
                        <FormLabel>
                            {{ m.livid_bright_wallaby_quiz() }}
                        </FormLabel>
                        <FormControl>
                            <Input
                                placeholder="hunter2"
                                type="password"
                                auto-capitalize="none"
                                auto-complete="password"
                                auto-correct="off"
                                :disabled="isLoading"
                                v-bind="componentField"
                            />
                        </FormControl>
                        <FormMessage />
                    </FormItem>
                </FormField>
                <Button :disabled="isLoading" type="submit">
                    <Loader v-if="isLoading" class="mr-2 size-4 animate-spin" />
                    {{ m.fuzzy_sea_moth_absorb() }}
                </Button>
            </div>
        </form>
        <div
            v-if="ssoConfig && ssoConfig.providers.length > 0"
            class="relative"
        >
            <div class="absolute inset-0 flex items-center">
                <span class="w-full border-t" />
            </div>
            <div class="relative flex justify-center text-xs uppercase">
                <span class="bg-background px-2 text-muted-foreground">
                    {{ m.tidy_tidy_cow_cut() }}
                </span>
            </div>
        </div>
        <div
            v-if="ssoConfig && ssoConfig.providers.length > 0"
            class="flex flex-col gap-2"
        >
            <Button
                as="a"
                :href="issuerRedirectUrl(provider.id)"
                variant="outline"
                type="button"
                :disabled="isLoading"
                v-for="provider of ssoConfig.providers"
            >
                <Loader v-if="isLoading" class="mr-2 animate-spin" />
                <img
                    crossorigin="anonymous"
                    :src="provider.icon"
                    :alt="`${provider.name}'s logo`"
                    class="size-4 mr-2"
                />
                {{ provider.name }}
            </Button>
        </div>
    </div>
</template>