// src/http.js
(function(global) {
    const { Component, NewState } = global;

    const HTTP = {
        get: ({ url, ...opt }) => HTTP.request({ url, method: 'GET', ...opt }),
        post: ({ url, data, ...opt }) => HTTP.request({ url, method: 'POST', data, ...opt }),
        put: ({ url, data, ...opt }) => HTTP.request({ url, method: 'PUT', data, ...opt }),
        delete: ({ url, ...opt }) => HTTP.request({ url, method: 'DELETE', ...opt }),
        head: ({ url, ...opt }) => HTTP.request({ url, method: 'HEAD', ...opt }),
        request: async ({ url, method = 'POST', data = undefined, headers = {}, responseType, timeout = 10000 }) => {
            method = method.toUpperCase()
            const opt = { method, headers: { 'Content-Type': 'application/json', ...headers } }
            if (data !== undefined) opt.body = JSON.stringify(data)

            const controller = new AbortController()
            const timer = setTimeout(() => controller.abort(), timeout)
            opt.signal = controller.signal

            try {
                const response = await fetch(url, opt)
                clearTimeout(timer)
                const result = responseType === 'blob' ? await response.blob() : (responseType === 'text' ? await response.text() : await response.json())
                return { ok: response.ok, status: response.status, result }
            } catch (err) {
                clearTimeout(timer)
                return { ok: false, status: 0, error: err.message }
            }
        }
    };

    Component.register('API', container => {
        if (!container.state.request) container.state.request = { url: '', method: 'GET', data: {}, noui: false }
        if (!container.state.response) container.state.response = { ok: false, status: 0, result: null, loading: false }

        container.do = async (req) => {
            const opt = { ...container.state.request, ...req }
            container.state.response.loading = true
            const resp = await HTTP.request(opt)
            Object.assign(container.state.response, resp, { loading: false })
            if (!resp.ok) {
                if (!opt.noui && global.UI?.toast) global.UI.toast(resp.error || 'Request failed', { type: 'danger' })
            }
            container.dispatchEvent(new CustomEvent('success', { bubbles: false, detail: resp.result }))
            return resp
        }

        let _autoTimer = null
        container.state.request.__watch(null, () => {
            if (!container.hasAttribute('auto') || !container.state.request.url) return
            if (_autoTimer) return
            _autoTimer = Promise.resolve().then(() => {
                container.do()
                _autoTimer = null
            })
        })
    });

    global.HTTP = HTTP;

})(globalThis);