{% set stroke_width = 4 %}
{% set margin = 2 %}

{% macro path(data_points, vb_height) %}
{% for value, position in data_points %}
{% set x = (position * vb_width)+margin %}
{% set y = (vb_height - value)+margin %}
{% if loop.first %}M{{ x | int }} {{ y | int }}{% else %} L{{ x | int }} {{ y | int }}{% endif %}
{% endfor %}
{% endmacro %}

{% macro path_best_fit(best_fit_points, vb_height) %}
{% for value, position in best_fit_points %}
{% set x = (position * vb_width)+margin %}
{% set y = (vb_height - value)+margin %}
{% if loop.first %}M{{ x | int }} {{ y | int }}{% else %} L{{ x | int }} {{ y | int }}{% endif %}
{% endfor %}
{% endmacro %}

{% macro path_band(lower_points, upper_points, vb_height) %}
{% if lower_points and upper_points %}
M{% for value, position in lower_points %}{{ (((position * vb_width) + margin) | int) }} {{ (((vb_height - value) + margin) | int) }}{% if not loop.last %} L{% endif %}{% endfor %}
{% for value, position in upper_points|reverse %} L{{ (((position * vb_width) + margin) | int) }} {{ (((vb_height - value) + margin) | int) }}{% endfor %} Z
{% endif %}
{% endmacro %}

{% macro circles(data_points, color) %}
{% for value, position in data_points %}
{% set x = (position * vb_width)+margin %}
{% set y = (vb_height - value)+margin %}
<circle cx="{{ x | int }}" cy="{{ y | int }}" r="1"></circle>
{% endfor %}
{% endmacro %}

{% macro forecast_circles(data_points, labels, color) %}
{% for value, position in data_points %}
{% set x = (position * vb_width)+margin %}
{% set y = (vb_height - value)+margin %}
<circle cx="{{ x | int }}" cy="{{ y | int }}" r="1.6" fill="{{ color }}" stroke="{{ color }}"
    class="pnt-{{ unique_id }}" data-msg="{{ labels[loop.index0][1] }}"></circle>
{% endfor %}
{% endmacro %}

{% macro plot_line(points, color) %}
<path d="{{ path(points, vb_height) }}" stroke="{{ color }}" fill="none" />
{{ circles(points, color) }}
{% endmacro %}

<!-- HubSpot doesn't escape whitespace. -->
{% macro random_int() %}{% for n in [0,1,2,3,4,5] %}{{ [0,1,2,3,4,5,6,7,8,9]|random }}{% endfor %}{% endmacro %}

<!-- You have to manually call the macros in a list. -->
{% set parts = [random_int()] %}
{% set unique_id = parts|join('-') %}

<div class="relative" id="svg-plot-{{ unique_id }}" _="
    on mouseover from .pnt-{{ unique_id }}
        put event.target @data-msg into #popover-{{ unique_id }}
        then remove .hidden from #popover-{{ unique_id }}
    on mouseout from .pnt-{{ unique_id }}
        add .hidden to #popover-{{ unique_id }}">
    <div id="popover-{{ unique_id }}" class="absolute t-0 r-0 hidden bg-white border border-gray-300 p-2 z-10">
        <!-- Popover content will be dynamically inserted here -->
    </div>
    <div class="flex items-center justify-between sm:justify-center relative mb-1">
        <div class="flex flex-col sm:flex-row items-center justify-center w-full gap-x-2">
            <h4 class="text-lg font-semibold text-blue-400">{{ title }}</h4>
            <div hx-get="{{ url_for('workout.get_topset_achievements', person_id=person_id, workout_id=latest_workout_id, topset_id=latest_topset_id) }}"
                hx-trigger="load" hx-target="this" hx-swap="innerHTML" class="flex items-center">
            </div>
        </div>
        <div class="absolute left-0 z-10">
            <button
                class="inline-flex justify-center p-1 text-gray-500 rounded cursor-pointer hover:text-gray-900 hover:bg-gray-100 dark:text-gray-400 dark:hover:text-white dark:hover:bg-gray-600"
                title="Show History"
                hx-get="{{ url_for('workout.get_exercise_history', person_id=person_id, exercise_id=exercise_id, source_topset_id=latest_topset_id) }}"
                hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML">
                <svg class="w-5 h-5 border border-gray-300 rounded p-0.5" fill="none" stroke="currentColor"
                    viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
                        d="M4 6h16M4 10h16M4 14h16M4 18h16"></path>
                </svg>
                <span class="sr-only">Show History</span>
            </button>
        </div>
        <div class="absolute right-0 z-10">
            <button
                class="inline-flex items-center gap-1 px-2 py-1 text-xs font-medium rounded-lg border transition-colors {% if forecast_enabled %}text-emerald-700 bg-emerald-50 border-emerald-200 hover:bg-emerald-100{% else %}text-gray-600 bg-white border-gray-300 hover:bg-gray-50{% endif %}"
                title="{% if forecast_enabled %}Hide forecast{% else %}Show forecast{% endif %}"
                hx-get="{{ url_for('get_exercise_progress_for_user', person_id=person_id, exercise_id=exercise_id, epoch=selected_epoch, forecast='false' if forecast_enabled else 'true', forecast_weeks=forecast_weeks, forecast_reps=forecast_target_reps) }}"
                hx-include="#svg-plot-{{ unique_id }} [name='min_date'], #svg-plot-{{ unique_id }} [name='max_date'], #svg-plot-{{ unique_id }} [name='degree']"
                hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML">
                <svg class="w-3.5 h-3.5" fill="none" viewBox="0 0 24 24" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 7h8m0 0v8m0-8l-8 8-4-4-6 6" /></svg>
                {% if forecast_enabled %}Forecast on{% else %}Forecast{% endif %}
            </button>
        </div>
    </div>
    <h2 class="text-xs font-semibold text-blue-200 mb-1 text-center">
        {% if best_fit_formula %}
        {{ best_fit_formula.kg_per_week }} kg/week, {{ best_fit_formula.kg_per_month }} kg/month
        {% endif %}
    </h2>
    <div class="inline-flex rounded-md shadow-sm w-full items-center justify-center mb-1">
        {% for epoch in epochs %}
        <div {% if selected_epoch==epoch %}
            class="px-4 py-2 text-sm font-medium text-blue-700 bg-white border border-gray-200 rounded-s-lg hover:bg-gray-100 focus:z-10 focus:ring-2 focus:ring-blue-700 focus:text-blue-700 dark:bg-gray-800 dark:border-gray-700 dark:text-white dark:hover:text-white dark:hover:bg-gray-700 dark:focus:ring-blue-500 dark:focus:text-white"
            {% else %}
            class="px-4 py-2 text-sm font-medium text-gray-900 bg-white border border-gray-200 rounded-e-lg hover:bg-gray-100 hover:text-blue-700 focus:z-10 focus:ring-2 focus:ring-blue-700 focus:text-blue-700 dark:bg-gray-800 dark:border-gray-700 dark:text-white dark:hover:text-white dark:hover:bg-gray-700 dark:focus:ring-blue-500 dark:focus:text-white cursor-pointer"
            hx-get='{{ url_for("get_exercise_progress_for_user", person_id=person_id,  exercise_id=exercise_id, epoch=epoch, forecast="true" if forecast_enabled else "false", forecast_weeks=forecast_weeks, forecast_reps=forecast_target_reps) }}'
            hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML" hx-trigger="click" {% endif %}>
            {% if epoch == 'Custom' %}
            <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor"
                class="w-5 h-5 {% if selected_epoch == 'Custom' %}text-blue-700{% else %}text-gray-500{% endif %} group-hover:text-gray-900">
                <path
                    d="M10 3.75a2 2 0 1 0-4 0 2 2 0 0 0 4 0ZM17.25 4.5a.75.75 0 0 0 0-1.5h-5.5a.75.75 0 0 0 0 1.5h5.5ZM5 3.75a.75.75 0 0 1-.75.75h-1.5a.75.75 0 0 1 0-1.5h1.5a.75.75 0 0 1 .75.75ZM4.25 17a.75.75 0 0 0 0-1.5h-1.5a.75.75 0 0 0 0 1.5h1.5ZM17.25 17a.75.75 0 0 0 0-1.5h-5.5a.75.75 0 0 0 0 1.5h5.5ZM9 10a.75.75 0 0 1-.75.75h-5.5a.75.75 0 0 1 0-1.5h5.5A.75.75 0 0 1 9 10ZM17.25 10.75a.75.75 0 0 0 0-1.5h-1.5a.75.75 0 0 0 0 1.5h1.5ZM14 10a2 2 0 1 0-4 0 2 2 0 0 0 4 0ZM10 16.25a2 2 0 1 0-4 0 2 2 0 0 0 4 0Z" />
            </svg>
            {% else %}
            {{ epoch}}
            {% endif %}
        </div>
        {% endfor %}
    </div>
    {% if forecast_enabled %}
    <div class="mx-2 mb-3 rounded-xl border {% if forecast.available %}border-emerald-100 bg-emerald-50/70{% else %}border-amber-100 bg-amber-50/70{% endif %} p-3 text-left">
        {% if forecast.available %}
        <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-2">
            <div>
                <div class="text-xs font-semibold uppercase tracking-wide text-emerald-800">E1RM projection</div>
                <div class="text-sm text-gray-700 mt-0.5">{{ forecast.last_value }}kg now <span class="text-gray-400">→</span> <span class="font-bold text-emerald-800">{{ forecast.projected_value }}kg</span> in {{ forecast.horizon_weeks }} weeks</div>
            </div>
            <div class="text-left sm:text-right">
                <div class="text-sm font-semibold {% if forecast.weekly_change >= 0 %}text-emerald-700{% else %}text-rose-700{% endif %}">{% if forecast.weekly_change >= 0 %}+{% endif %}{{ forecast.weekly_change }}kg/week</div>
                <div class="text-xs text-gray-500">{{ forecast.confidence }} confidence · {{ forecast.observed_points }} sessions</div>
            </div>
        </div>
        {% if forecast.selected_top_set %}
        <div class="mt-3 rounded-lg border border-emerald-100 bg-white/80 px-3 py-2.5">
            <div class="flex items-center justify-between gap-2">
                <div>
                    <div class="text-xs font-semibold uppercase tracking-wide text-gray-500">Estimated top set</div>
                    <div class="text-lg font-bold text-gray-800">{{ forecast.selected_top_set.weight }}kg × {{ forecast.selected_top_set.repetitions }}</div>
                </div>
                <div class="text-right text-xs text-gray-500">
                    <div>Likely range</div>
                    <div class="font-semibold text-emerald-700">{{ forecast.selected_top_set.lower_weight }}–{{ forecast.selected_top_set.upper_weight }}kg</div>
                </div>
            </div>
            <div class="flex flex-wrap items-center gap-1.5 mt-2">
                <span class="text-xs text-gray-400 mr-1">Target reps</span>
                {% for reps in forecast.target_reps %}
                <button class="px-2 py-0.5 rounded text-xs {% if forecast.selected_reps == reps %}bg-emerald-700 text-white{% else %}bg-emerald-50 text-emerald-700 hover:bg-emerald-100{% endif %}"
                    hx-get="{{ url_for('get_exercise_progress_for_user', person_id=person_id, exercise_id=exercise_id, epoch=selected_epoch, forecast='true', forecast_weeks=forecast_weeks, forecast_reps=reps) }}"
                    hx-include="#svg-plot-{{ unique_id }} [name='min_date'], #svg-plot-{{ unique_id }} [name='max_date'], #svg-plot-{{ unique_id }} [name='degree']"
                    hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML">{{ reps }}</button>
                {% endfor %}
            </div>
            <div class="text-[11px] text-gray-400 mt-2">Rounded to the nearest {{ forecast.target_weight_increment }}kg based on your recorded loads.</div>
        </div>
        {% endif %}
        <div class="flex flex-wrap items-center gap-2 mt-3">
            <span class="text-xs text-gray-500 mr-1">Horizon</span>
            {% for weeks in [4, 8, 12, 26] %}
            <button class="px-2.5 py-1 rounded-md text-xs font-medium {% if forecast_weeks == weeks %}bg-emerald-700 text-white{% else %}bg-white text-gray-600 border border-emerald-200 hover:bg-emerald-100{% endif %}"
                hx-get="{{ url_for('get_exercise_progress_for_user', person_id=person_id, exercise_id=exercise_id, epoch=selected_epoch, forecast='true', forecast_weeks=weeks, forecast_reps=forecast_target_reps) }}"
                hx-include="#svg-plot-{{ unique_id }} [name='min_date'], #svg-plot-{{ unique_id }} [name='max_date'], #svg-plot-{{ unique_id }} [name='degree']"
                hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML">{{ weeks }}w</button>
            {% endfor %}
        </div>
        {% else %}
        <div class="text-sm font-medium text-amber-800">Forecast unavailable</div>
        <div class="text-xs text-amber-700 mt-1">{{ forecast.reason }}</div>
        {% endif %}
    </div>
    {% endif %}
    {% if selected_epoch == 'Custom' %}
    <div class="flex flex-col md:flex-row justify-center pb-4">
        <!-- Min Date -->
        <div class="w-full md:w-1/3 px-2 md:px-3 mb-6 md:mb-0">
            <label class="block uppercase tracking-wide text-gray-700 text-xs font-bold mb-2" for="grid-city">
                Min date
            </label>
            <div class="relative pr-2">
                <div class="flex absolute inset-y-0 left-0 items-center pl-3 pointer-events-none">
                    <svg aria-hidden="true" class="w-5 h-5 text-gray-500 dark:text-gray-400" fill="currentColor"
                        viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
                        <path fill-rule="evenodd" d="M6 2a1 1 0 00-1 1v1H4a2 2 0 00-2 2v10a2 
                    2 0 002 2h12a2 2 0 002-2V6a2 2 0 
                    00-2-2h-1V3a1 1 0 10-2 0v1H7V3a1 
                    1 0 00-1-1zm0 5a1 1 0 000 
                    2h8a1 1 0 100-2H6z" clip-rule="evenodd"></path>
                    </svg>
                </div>
                <input type="date" class="bg-gray-50 border border-gray-300 text-gray-900 
                    text-sm rounded-lg focus:ring-blue-500 
                    focus:border-blue-500 block w-full pl-10 p-2.5" name="min_date" value="{{ min_date }}"
                    hx-get="{{ url_for('get_exercise_progress_for_user', person_id=person_id, exercise_id=exercise_id, forecast='true' if forecast_enabled else 'false', forecast_weeks=forecast_weeks, forecast_reps=forecast_target_reps) }}"
                    hx-include="#svg-plot-{{ unique_id }} [name='max_date'], #svg-plot-{{ unique_id }} [name='degree']"
                    hx-vals='{"epoch": "Custom"}' hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML"
                    hx-trigger="change">
            </div>
        </div>

        <!-- Max Date -->
        <div class="w-full md:w-1/3 px-2 md:px-3 mb-6 md:mb-0">
            <label class="block uppercase tracking-wide text-gray-700 text-xs font-bold mb-2" for="grid-zip">
                Max date
            </label>
            <div class="relative pr-2">
                <div class="flex absolute inset-y-0 left-0 items-center pl-3 pointer-events-none">
                    <svg aria-hidden="true" class="w-5 h-5 text-gray-500 dark:text-gray-400" fill="currentColor"
                        viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
                        <path fill-rule="evenodd" d="M6 2a1 1 0 00-1 1v1H4a2 2 0 
                        00-2 2v10a2 2 0 002 2h12a2 
                        2 0 002-2V6a2 2 0 00-2-2h-1V3a1 
                        1 0 10-2 0v1H7V3a1 1 0 
                        00-1-1zm0 5a1 1 0 000 
                        2h8a1 1 0 100-2H6z" clip-rule="evenodd"></path>
                    </svg>
                </div>
                <input type="date" class="bg-gray-50 border border-gray-300 
                        text-gray-900 text-sm rounded-lg 
                        focus:ring-blue-500 focus:border-blue-500 
                        block w-full pl-10 p-2.5" name="max_date" value="{{ max_date }}"
                    hx-get="{{ url_for('get_exercise_progress_for_user', person_id=person_id, exercise_id=exercise_id, forecast='true' if forecast_enabled else 'false', forecast_weeks=forecast_weeks, forecast_reps=forecast_target_reps) }}"
                    hx-include="#svg-plot-{{ unique_id }} [name='min_date'], #svg-plot-{{ unique_id }} [name='degree']"
                    hx-vals='{"epoch": "Custom"}' hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML"
                    hx-trigger="change">
            </div>
        </div>

        <!-- Degree -->
        <div class="w-full md:w-1/3 px-2 md:px-3 mb-6 md:mb-0">
            <label class="block uppercase tracking-wide text-gray-700 text-xs font-bold mb-2" for="grid-zip">
                Degree
            </label>
            <div class="relative pr-2">
                <div class="flex absolute inset-y-0 left-0 items-center pl-3 pointer-events-none">

                    <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5"
                        stroke="currentColor" class="w-5 h-5 text-gray-500 dark:text-gray-400">
                        <path stroke-linecap="round" stroke-linejoin="round"
                            d="M3 13.125C3 12.504 3.504 12 4.125 12h2.25c.621 0 1.125.504 1.125 1.125v6.75C7.5 20.496 6.996 21 6.375 21h-2.25A1.125 1.125 0 0 1 3 19.875v-6.75ZM9.75 8.625c0-.621.504-1.125 1.125-1.125h2.25c.621 0 1.125.504 1.125 1.125v11.25c0 .621-.504 1.125-1.125 1.125h-2.25a1.125 1.125 0 0 1-1.125-1.125V8.625ZM16.5 4.125c0-.621.504-1.125 1.125-1.125h2.25C20.496 3 21 3.504 21 4.125v15.75c0 .621-.504 1.125-1.125 1.125h-2.25a1.125 1.125 0 0 1-1.125-1.125V4.125Z" />
                    </svg>

                </div>
                <input type="number"
                    class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full pl-10 p-2.5  w-full"
                    name="degree" value="{{ degree }}" min="1" step="1"
                    hx-get="{{ url_for('get_exercise_progress_for_user', person_id=person_id, exercise_id=exercise_id, forecast='true' if forecast_enabled else 'false', forecast_weeks=forecast_weeks, forecast_reps=forecast_target_reps) }}"
                    hx-include="#svg-plot-{{ unique_id }} [name='min_date'], #svg-plot-{{ unique_id }} [name='max_date']"
                    hx-vals='{"epoch": "Custom"}' hx-target="#svg-plot-{{ unique_id }}" hx-swap="outerHTML"
                    hx-trigger="change">
            </div>
        </div>
    </div>

    {% endif %}
    <svg viewBox="0 0 {{ (vb_width + 2*margin) | int }} {{ (vb_height + 2*margin) | int }}" preserveAspectRatio="none">
        {% if forecast_enabled and forecast.available %}
        <path d="{{ path_band(forecast_band_lower, forecast_band_upper, vb_height) }}" fill="#10b981" fill-opacity="0.10" stroke="none"></path>
        <path d="{{ path(forecast_points, vb_height) }}" stroke="#059669" stroke-width="2" stroke-dasharray="5,3" fill="none"></path>
        {{ forecast_circles(forecast_points, forecast_labels, '#059669') }}
        <line x1="{{ ((forecast_start_position * vb_width) + margin) | int }}" y1="{{ margin }}" x2="{{ ((forecast_start_position * vb_width) + margin) | int }}" y2="{{ vb_height + margin }}" stroke="#059669" stroke-width="0.8" stroke-dasharray="2,2" stroke-opacity="0.5"></line>
        {% endif %}
        {% for plot in plots %}
        <g class="{{ plot.label }}" style="fill: {{ plot.color }}; stroke: {{ plot.color }};">
            {{ plot_line(plot.points, plot.color) }}
        </g>
        {% endfor %}

        <g style="fill-opacity: 0%">
            {% for pos, message in plot_labels %}
            {% set x = (pos * vb_width) - (stroke_width/2) + margin %}
            {% set y = 0 %}
            {% set width = stroke_width %}
            {% set height = vb_height + margin %}
            <rect x="{{ x | int }}" y="{{ y | int }}" width="{{ width | int }}" height="{{ height | int }}"
                class="pnt-{{ unique_id }}" data-msg="{{ message }}"></rect>
            {% endfor %}
            {% if forecast_enabled and forecast.available %}
            {% for pos, message in forecast_labels %}
            {% set x = (pos * vb_width) - (stroke_width/2) + margin %}
            <rect x="{{ x | int }}" y="0" width="{{ stroke_width | int }}" height="{{ (vb_height + margin) | int }}"
                class="pnt-{{ unique_id }}" data-msg="{{ message }}"></rect>
            {% endfor %}
            {% endif %}
        </g>

        <path d="{{ path_best_fit(best_fit_points, vb_height) }}" stroke="gray" stroke-dasharray="2,1" fill="none"
            stroke-opacity="60%" />
    </svg>
    <div class="flex justify-center pt-2">
        {% for plot in plots %}
        <div class="flex items-center px-2 select-none cursor-pointer" _="on load put document.querySelector('#svg-plot-{{ unique_id }} g.{{plot.label}}') into my.plot_line
            on click toggle .hidden on my.plot_line then toggle .line-through on me">
            <div class="w-3 h-3 mr-1" style="background-color: {{ plot.color }};"></div>
            <div class="text-xs">{{ plot.label }}</div>
        </div>
        {% endfor %}
        {% if forecast_enabled and forecast.available %}
        <div class="flex items-center px-2 select-none">
            <div class="w-3 h-0.5 mr-1 border-t-2 border-dashed border-emerald-600"></div>
            <div class="text-xs">Projected E1RM</div>
        </div>
        {% endif %}
    </div>

</div>