// components/pricing.el - Three pricing cards: Free / Professional / Founding Member.
// Accepts the founding counter values as parameters so main.el can inject
// server-side rendered counts without JS.

extern fn el_section(attrs: String, children: String) -> String
extern fn el_div(attrs: String, children: String) -> String
extern fn el_span(attrs: String, children: String) -> String
extern fn el_h2(attrs: String, text: String) -> String
extern fn el_p(attrs: String, children: String) -> String
extern fn el_ul(attrs: String, children: String) -> String
extern fn el_li(attrs: String, children: String) -> String
extern fn el_button(attrs: String, label: String) -> String

fn founding_spots_html(sold: Int, total: Int) -> String {
    let remaining: Int = total - sold
    let pct: Int = (sold * 100) / total
    let pct_str: String = int_to_str(pct)
    let remaining_str: String = int_to_str(remaining)
    let sold_str: String = int_to_str(sold)
    let total_str: String = int_to_str(total)

    el_div(
        "class=\"founding-spots\"",
        el_p("class=\"founding-spots-label\"", "Only " + remaining_str + " left") +
        el_div(
            "class=\"founding-spots-bar\"",
            el_div("class=\"founding-spots-fill\" style=\"width:" + pct_str + "%\"", "")
        ) +
        el_p("class=\"founding-spots-sub\"", sold_str + " of " + total_str + " claimed")
    )
}

fn pricing_free_features() -> String {
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Persistent memory - never resets")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Bring your own API keys (OpenAI, Anthropic, Grok...)")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Local inference via Ollama (coming)")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Neuron Inference included when it launches - Q3 2026")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Unlimited projects")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "3 marketplace plugins included")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Core built-in capabilities"))
}

fn pricing_pro_features() -> String {
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Bring your own API keys - use any model, any provider")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Neuron Inference - Q3 2026, priced below OpenAI and Anthropic")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Everything in Free")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Unlimited projects")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Full plugin marketplace")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Advanced integrations - IDE, Slack, and more")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Early access to new features"))
}

fn pricing_founding_features() -> String {
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Neuron Inference (Q3 2026) - pay-per-use at the founding member rate, below the major APIs")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Everything in Professional - forever")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "No subscription — software updates are free forever")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Founding member badge in the app")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Private founding member community")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Shape the roadmap - your votes carry more weight")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Beta features before general release")) +
    el_li("", el_span("class=\"dash\"", "-") + el_span("", "Name in the credits"))
}

fn pricing(sold: Int, total: Int) -> String {
    let spots_html: String = founding_spots_html(sold, total)
    let remaining: Int = total - sold
    let pct: Int = (sold * 100) / total
    let pct_str: String = int_to_str(pct)
    let remaining_str: String = int_to_str(remaining)
    let total_str: String = int_to_str(total)

    let header: String = el_div(
        "class=\"pricing-header\"",
        el_div(
            "class=\"pricing-label-row reveal\"",
            el_div("style=\"height:1px;width:4rem;background:linear-gradient(to right,transparent,rgba(0,82,160,.35))\"", "") +
            el_span("class=\"label\" style=\"color:var(--navy-85)\"", "Pricing") +
            el_div("style=\"height:1px;width:4rem;background:linear-gradient(to left,transparent,rgba(0,82,160,.35))\"", "")
        ) +
        el_h2("class=\"display-lg pricing-headline reveal\" style=\"transition-delay:80ms\"", "Own it. Don't rent it.") +
        el_p("class=\"pricing-sub reveal\" style=\"transition-delay:160ms\"",
            "Bring your own API keys on day one. Neuron Inference - our own model layer, priced below the major APIs - launches Q3 2026."
        )
    )

    let card_free: String = el_div(
        "class=\"pricing-card card-dark reveal\"",
        el_p("class=\"pricing-tier\"", "Free") +
        el_div(
            "class=\"pricing-price-row\"",
            el_span("class=\"pricing-price\"", "$0") +
            el_span("class=\"pricing-cadence\"", "forever")
        ) +
        el_p("class=\"pricing-tagline\"", "Start building your memory. Card required for age verification — you won't be charged.") +
        el_ul("class=\"pricing-features\"", pricing_free_features()) +
        el_div("style=\"flex:1\"", "") +
        el_div(
            "class=\"pricing-cta pricing-cta-ghost\"",
            el_button("class=\"pricing-cta-ghost\" data-checkout=\"free\"", "Preorder free tier →")
        )
    )

    let card_pro: String = el_div(
        "class=\"pricing-card card-dark reveal\" style=\"transition-delay:150ms\"",
        el_p("class=\"pricing-tier\"", "Professional") +
        el_div(
            "class=\"pricing-price-row\"",
            el_span("class=\"pricing-price\"", "$19") +
            el_span("class=\"pricing-cadence\"", "/ month")
        ) +
        el_p("class=\"pricing-tagline\"", "Full access. Use your own API keys now. Neuron Inference when it launches.") +
        el_ul("class=\"pricing-features\"", pricing_pro_features()) +
        el_div("style=\"flex:1\"", "") +
        el_div(
            "class=\"pricing-cta pricing-cta-navy\"",
            el_button("class=\"pricing-cta-navy\" data-checkout=\"professional\"", "Preorder →")
        )
    )

    let card_founding: String = el_div(
        "class=\"pricing-card featured reveal\" style=\"transition-delay:300ms\"",
        el_p("class=\"pricing-tier\"", "Founding Member") +
        el_div(
            "class=\"pricing-price-row\"",
            el_span("class=\"pricing-price\"", "$199") +
            el_span("class=\"pricing-cadence\"", "lifetime")
        ) +
        el_p("class=\"pricing-tagline\"", "Pay once for the platform — free software updates, forever. Inference is pay-per-use at your founding member rate.") +
        spots_html +
        el_ul("class=\"pricing-features\"", pricing_founding_features()) +
        el_div("style=\"flex:1\"", "") +
        el_div(
            "class=\"pricing-cta pricing-cta-solid\"",
            el_button("class=\"pricing-cta-solid\" data-checkout=\"founding\"", "Preorder — claim your spot →")
        )
    )

    let grid: String = el_div("class=\"pricing-grid\"", card_free + card_pro + card_founding)

    let banner_fill: String = el_div(
        "class=\"founding-banner-fill\" style=\"width:" + pct_str + "%\"",
        ""
    )
    let banner: String = el_div(
        "class=\"founding-banner reveal\"",
        el_div(
            "",
            el_p("class=\"founding-banner-label\"", "Founding Member Spots") +
            el_div(
                "style=\"display:flex;align-items:baseline;gap:.5rem;margin:.25rem 0\"",
                el_span("class=\"founding-banner-count\"", remaining_str) +
                el_span("class=\"founding-banner-sub\"", "remaining of " + el_span("", total_str))
            ) +
            el_div("class=\"founding-banner-bar\"", banner_fill)
        ) +
        el_button("class=\"btn-primary\" data-checkout=\"founding\" style=\"white-space:nowrap\"", "Preorder →")
    )

    let fine1: String = el_p("class=\"pricing-fine reveal\" style=\"margin-top:2.5rem\"",
        "Bring your own API keys  ·  Local inference via Ollama (coming)  ·  Neuron Inference - Q3 2026  ·  Your data stays yours"
    )
    let fine2: String = el_p("class=\"pricing-fine reveal\" style=\"margin-top:1rem;font-size:0.8rem\"",
        "Includes 2 devices per plan  ·  Additional devices available at a small extra cost  ·  We're not greedy"
    )

    el_section(
        "id=\"pricing\" aria-label=\"Pricing\"",
        el_div("class=\"container\"", header + grid + banner + fine1 + fine2)
    )
}