<template>
    <button @click="toggle" class="text-white hover:text-blue-400 focus:outline-none" aria-label="Color Mode">
        <svg v-if="darkMode" class="w-5 h-5 sm:w-6 sm:h-6" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor">
            <path fill-rule="evenodd" d="M10 2a1 1 0 011 1v1a1 1 0 11-2 0V3a1 1 0 011-1zm4 8a4 4 0 11-8 0 4 4 0 018 0zm-.464 4.95l.707.707a1 1 0 001.414-1.414l-.707-.707a1 1 0 00-1.414 1.414zm2.12-10.607a1 1 0 010 1.414l-.706.707a1 1 0 11-1.414-1.414l.707-.707a1 1 0 011.414 0zM17 11a1 1 0 100-2h-1a1 1 0 100 2h1zm-7 4a1 1 0 011 1v1a1 1 0 11-2 0v-1a1 1 0 011-1zM5.05 6.464A1 1 0 106.465 5.05l-.708-.707a1 1 0 00-1.414 1.414l.707.707zm1.414 8.486l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 1.414zM4 11a1 1 0 100-2H3a1 1 0 000 2h1z" clip-rule="evenodd" />
        </svg>
        <svg v-if="!darkMode" class="w-5 h-5 sm:w-6 sm:h-6" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor">
            <path d="M17.293 13.293A8 8 0 016.707 2.707a8.001 8.001 0 1010.586 10.586z" />
        </svg>
    </button>
</template>

<script>
export default {
    data() {
        return {
            darkMode: false,
        }
    },
    
    created() {
        this.darkMode = JSON.parse(localStorage.getItem('darkMode'))
        
        this.set()
    },

    methods: {
        toggle() {
            this.darkMode = ! this.darkMode
            localStorage.setItem('darkMode', this.darkMode)
            this.set()
        },
        
        set() {
            if (this.darkMode) {
                document.querySelector('html').classList.add('dark')
                return
            }
            document.querySelector('html').classList.remove('dark')
        }
    }
}
</script>