<!--
 Copyright 2024 Google LLC

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-->

<template>
    <DataTable
        :value="tableData"
        rowGroupMode="rowspan"
        groupRowsBy="address"
        removableSort
        size="small"
        :filters="filters"
        :filterMode="filterMode"
        filterDisplay="row"
        :globalFilterFields="['address', 'rule', 'namespace']"
    >
        <template #header>
            <IconField>
                <InputIcon class="pi pi-search" />
                <InputText v-model="filters['global'].value" placeholder="Global search" />
            </IconField>
        </template>

        <Column
            field="address"
            sortable
            header="Function Address"
            class="w-min"
            :showFilterMenu="false"
            :showClearButton="false"
        >
            <template #filter v-if="props.showColumnFilters">
                <InputText v-model="filters['address'].value" placeholder="Filter by function address" />
            </template>
            <template #body="{ data }">
                <span class="font-monospace">{{ data.address }}</span>
                <span v-if="data.matchCount > 1" class="font-italic match-count">
                    ({{ data.matchCount }} match{{ data.matchCount > 1 ? "es" : "" }})
                </span>
            </template>
        </Column>

        <Column field="rule" header="Rule Matches" class="w-min" :showFilterMenu="false" :showClearButton="false">
            <template #filter v-if="props.showColumnFilters">
                <InputText v-model="filters['rule'].value" placeholder="Filter by rule" />
            </template>
            <template #body="{ data }">
                {{ data.rule }}
                <LibraryTag v-if="data.lib" />
            </template>
        </Column>

        <Column field="namespace" header="Namespace" :showFilterMenu="false" :showClearButton="false">
            <template #filter v-if="props.showColumnFilters">
                <InputText v-model="filters['namespace'].value" placeholder="Filter by namespace" />
            </template>
        </Column>
    </DataTable>
</template>

<script setup>
import { ref, computed, onMounted } from "vue";
import DataTable from "primevue/datatable";
import Column from "primevue/column";
import IconField from "primevue/iconfield";
import InputIcon from "primevue/inputicon";
import InputText from "primevue/inputtext";
import LibraryTag from "@/components/misc/LibraryTag.vue";

import { parseFunctionCapabilities } from "@/utils/rdocParser";

const props = defineProps({
    data: {
        type: Object,
        required: true
    },
    showLibraryRules: {
        type: Boolean,
        default: false
    },
    showColumnFilters: {
        type: Boolean,
        default: false
    }
});

const filters = ref({
    global: { value: null, matchMode: "contains" },
    address: { value: null, matchMode: "contains" },
    rule: { value: null, matchMode: "contains" },
    namespace: { value: null, matchMode: "contains" }
});
const filterMode = ref("lenient");

const functionCapabilities = ref([]);

onMounted(() => {
    functionCapabilities.value = parseFunctionCapabilities(props.data);
});

/*
 * tableData is the data passed to the DataTable component
 * it is a computed property (that is because it gets re-executed everytime props.showLibraryRules changes)
 * it is an array of objects, where each object represents a row in the table
 * it also converts the output of parseFunctionCapabilities into a format that can be used by the DataTable component
 */

const tableData = computed(() => {
    const data = [];
    for (const fcaps of functionCapabilities.value) {
        // when props.showLibraryRules is true, all capabilities are included.
        // when props.showLibraryRules is false, only non-library capabilities (where cap.lib is false) are included.
        const capabilities = fcaps.capabilities.filter((cap) => props.showLibraryRules || !cap.lib);
        capabilities.forEach((capability) => {
            data.push({
                address: fcaps.address,
                matchCount: capabilities.length,
                rule: capability.name,
                namespace: capability.namespace,
                lib: capability.lib
            });
        });
    }
    return data;
});
</script>

<style scoped>
/* tighten up the spacing between rows, and change border color */
:deep(.p-datatable-tbody > tr > td) {
    padding: 0.2rem 0.5rem !important;
    border-width: 0 0 1px 0;
    border-color: #97a0ab;
}
</style>
