jellehak/index.html

## index.html
<!DOCTYPE html>
<html>

<head>
    <title>TODO app</title>
</head>

<body>
    <div id="app1">
        loading...
    </div>


    <div id="app2">
        loading...
    </div>

    <script type="module">
        // import { createApp } from "./app.js"
        // Sugar
        function c(name = '', props, children = []) {
            const el = document.createElement(name)
            Object.assign(el, props)
            children.forEach(c => el.appendChild(c));
            return el
        }

        function createApp(config = {}) {
            const { service } = config

            return {
                async $mount(id) {
                    const root = document.getElementById(id)

                    const state = {
                        joke: {}
                    }

                    root.innerHTML = 'loading...'
                    // Call service
                    state.joke = await service.getAll()

                    function render(_state = state) {
                        const setButton = c('button', {
                            innerHTML: 'Set joke',
                            onclick() {
                                const joke = { "id": 363, "type": "general", "setup": "Why do mathematicians hate the U.S.?", "punchline": "Because it's indivisible." }
                                state.joke = joke
                                service.saveAll(state)
                                render()
                            }
                        });

                        const clearButton = c('button', {
                            innerHTML: 'Clear joke',
                            onclick() {
                                console.log('clear')
                                const joke = null
                                state.joke = joke
                                console.log(state)
                                service.saveAll(state)
                                render()
                            }
                        });

                        const app = c('div', {}, [
                            c('h1', {innerHTML: config.title }),
                            c('div', {
                                innerHTML: JSON.stringify(_state.joke, null, 2)
                            }), setButton, clearButton])

                        root.replaceChildren(app);
                    }
                    render()
                }
            }
        }

        class LocalService {
            constructor({ key = 'joke' } = {}) {
                this.key = key
            }

            async getAll() {
                const resp = localStorage.getItem(this.key)
                return JSON.parse(resp)
            }

            async saveAll(body) {
                localStorage.setItem(this.key, JSON.stringify(body))
            }
        }

        class ApiService {
            constructor({ server = '/api' } = {}) {
                this.server = server
            }

            async getAll() {
                return fetch(this.server).then(elem => elem.json())
            }

            async saveAll(body = {}) {
                console.warn('Joke Api is read only')
                // return fetch(this.server, {
                //     method: 'POST',
                //     body: JSON.stringify(body)
                // }).then(elem => elem.json())
            }
        }

        const commonConfig = {
            title: 'Joke App'
        }

        // Local
        createApp({
            ...commonConfig,
            title: 'Joke App (local)',
            service: new LocalService()
        }).$mount('app1')

        // Remote
        createApp({
            ...commonConfig,
            service: new ApiService({ server: 'https://official-joke-api.appspot.com/random_joke' })
        }).$mount('app2')
    </script>
</body>

</html>
	<!DOCTYPE html>
	<html>

	<head>
	<title>TODO app</title>
	</head>

	<body>
	<div id="app1">
	loading...
	</div>


	<div id="app2">
	loading...
	</div>

	<script type="module">
	// import { createApp } from "./app.js"
	// Sugar
	function c(name = '', props, children = []) {
	const el = document.createElement(name)
	Object.assign(el, props)
	children.forEach(c => el.appendChild(c));
	return el
	}

	function createApp(config = {}) {
	const { service } = config

	return {
	async $mount(id) {
	const root = document.getElementById(id)

	const state = {
	joke: {}
	}

	root.innerHTML = 'loading...'
	// Call service
	state.joke = await service.getAll()

	function render(_state = state) {
	const setButton = c('button', {
	innerHTML: 'Set joke',
	onclick() {
	const joke = { "id": 363, "type": "general", "setup": "Why do mathematicians hate the U.S.?", "punchline": "Because it's indivisible." }
	state.joke = joke
	service.saveAll(state)
	render()
	}
	});

	const clearButton = c('button', {
	innerHTML: 'Clear joke',
	onclick() {
	console.log('clear')
	const joke = null
	state.joke = joke
	console.log(state)
	service.saveAll(state)
	render()
	}
	});

	const app = c('div', {}, [
	c('h1', {innerHTML: config.title }),
	c('div', {
	innerHTML: JSON.stringify(_state.joke, null, 2)
	}), setButton, clearButton])

	root.replaceChildren(app);
	}
	render()
	}
	}
	}

	class LocalService {
	constructor({ key = 'joke' } = {}) {
	this.key = key
	}

	async getAll() {
	const resp = localStorage.getItem(this.key)
	return JSON.parse(resp)
	}

	async saveAll(body) {
	localStorage.setItem(this.key, JSON.stringify(body))
	}
	}

	class ApiService {
	constructor({ server = '/api' } = {}) {
	this.server = server
	}

	async getAll() {
	return fetch(this.server).then(elem => elem.json())
	}

	async saveAll(body = {}) {
	console.warn('Joke Api is read only')
	// return fetch(this.server, {
	// method: 'POST',
	// body: JSON.stringify(body)
	// }).then(elem => elem.json())
	}
	}

	const commonConfig = {
	title: 'Joke App'
	}

	// Local
	createApp({
	...commonConfig,
	title: 'Joke App (local)',
	service: new LocalService()
	}).$mount('app1')

	// Remote
	createApp({
	...commonConfig,
	service: new ApiService({ server: 'https://official-joke-api.appspot.com/random_joke' })
	}).$mount('app2')
	</script>
	</body>

	</html>