@using PowderCoating.Web.Controllers
@using PowderCoating.Application.DTOs.Health
@model List<CompanyHealthDto>
@{
    ViewData["Title"] = "Company Health";

    var showChurned  = (bool)(ViewBag.ShowChurned ?? false);
    var churnedCount = (int)(ViewBag.ChurnedCount ?? 0);

    string RiskBadge(ChurnRisk r) => r switch {
        ChurnRisk.Healthy        => "bg-success",
        ChurnRisk.AtRisk         => "bg-warning text-dark",
        ChurnRisk.Critical       => "bg-danger",
        ChurnRisk.NeverActivated => "bg-secondary",
        _                        => "bg-secondary"
    };

    string RiskLabel(ChurnRisk r) => r switch {
        ChurnRisk.Healthy        => "Healthy",
        ChurnRisk.AtRisk         => "At Risk",
        ChurnRisk.Critical       => "Critical",
        ChurnRisk.NeverActivated => "Never Activated",
        _                        => r.ToString()
    };

    string RowClass(ChurnRisk r) => r switch {
        ChurnRisk.Critical       => "table-danger",
        ChurnRisk.AtRisk         => "table-warning",
        ChurnRisk.NeverActivated => "opacity-75",
        _                        => ""
    };

    string ScoreColor(int s) => s >= 75 ? "text-success" : s >= 45 ? "text-warning" : "text-danger";

    string ConfigBadgeClass(CompanyConfigHealth ch) => ch.IsHealthy ? "bg-success" :
        ch.OverallSeverity == ConfigIssueSeverity.Critical ? "bg-danger" : "bg-warning text-dark";

    string LoginLabel(int days) => days switch {
        -1  => "Never",
        0   => "Today",
        1   => "Yesterday",
        _   => $"{days}d ago"
    };

    string LoginClass(int days) => days is -1 or >= 90 ? "text-danger" : days >= 30 ? "text-warning" : "text-success";
}

@section Styles {
<style>
    [data-bs-theme="dark"] .table-light th,
    [data-bs-theme="dark"] .table-light td {
        background-color: var(--bs-secondary-bg);
        color: var(--bs-body-color);
    }
    [data-bs-theme="dark"] .table-danger td {
        background-color: rgba(220,53,69,.15) !important;
    }
    [data-bs-theme="dark"] .table-warning td {
        background-color: rgba(255,193,7,.1) !important;
    }
    [data-bs-theme="dark"] .card {
        border-color: var(--bs-border-color) !important;
    }
    [data-bs-theme="dark"] .card-footer {
        background-color: var(--bs-secondary-bg);
        border-color: var(--bs-border-color);
    }
</style>
}

<div class="container-fluid py-3">
    <div class="d-flex align-items-center justify-content-between mb-3">
        <div>
            <h4 class="mb-0"><i class="bi bi-heart-pulse me-2 text-primary"></i>Company Health</h4>
            <small class="text-muted">Churn risk signals across all tenants</small>
        </div>
    </div>

    @* Churned account visibility banner *@
    @if (churnedCount > 0 && !showChurned)
    {
        <div class="alert alert-secondary alert-permanent d-flex align-items-center gap-2 mb-3 py-2">
            <i class="bi bi-eye-slash text-muted"></i>
            <span class="small"><strong>@churnedCount</strong> churned @(churnedCount == 1 ? "account" : "accounts") (expired or canceled 14+ days ago) hidden from scores and totals.</span>
            <a href="@Url.Action("Index", new { risk = ViewBag.Risk, search = ViewBag.Search, configIssuesOnly = ViewBag.ConfigIssuesOnly, showChurned = true })"
               class="btn btn-sm btn-outline-secondary ms-auto py-0">Show churned</a>
        </div>
    }
    else if (showChurned && churnedCount > 0)
    {
        <div class="alert alert-warning alert-permanent d-flex align-items-center gap-2 mb-3 py-2">
            <i class="bi bi-eye text-warning"></i>
            <span class="small">Showing all accounts including <strong>@churnedCount</strong> churned.</span>
            <a href="@Url.Action("Index", new { risk = ViewBag.Risk, search = ViewBag.Search, configIssuesOnly = ViewBag.ConfigIssuesOnly, showChurned = false })"
               class="btn btn-sm btn-outline-secondary ms-auto py-0">Hide churned</a>
        </div>
    }

    @* Summary stat cards *@
    <div class="row g-3 mb-3">
        <div class="col-6 col-lg-3">
            <a href="@Url.Action("Index", new { risk = "", search = ViewBag.Search })"
               class="card border-0 shadow-sm text-decoration-none @(string.IsNullOrEmpty(ViewBag.Risk as string) ? "border-bottom border-3 border-secondary" : "")">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <div class="rounded-circle bg-secondary bg-opacity-10 p-2">
                            <i class="bi bi-building text-secondary fs-5"></i>
                        </div>
                        <div>
                            <div class="fs-4 fw-bold">@Model.Count</div>
                            <div class="small text-muted">All Companies</div>
                        </div>
                    </div>
                </div>
            </a>
        </div>
        <div class="col-6 col-lg-3">
            <a href="@Url.Action("Index", new { risk = "Healthy", search = ViewBag.Search })"
               class="card border-0 shadow-sm text-decoration-none @(ViewBag.Risk == "Healthy" ? "border-bottom border-3 border-success" : "")">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <div class="rounded-circle bg-success bg-opacity-10 p-2">
                            <i class="bi bi-check-circle text-success fs-5"></i>
                        </div>
                        <div>
                            <div class="fs-4 fw-bold text-success">@ViewBag.HealthyCount</div>
                            <div class="small text-muted">Healthy</div>
                        </div>
                    </div>
                </div>
            </a>
        </div>
        <div class="col-6 col-lg-3">
            <a href="@Url.Action("Index", new { risk = "AtRisk", search = ViewBag.Search })"
               class="card border-0 shadow-sm text-decoration-none @(ViewBag.Risk == "AtRisk" ? "border-bottom border-3 border-warning" : "")">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <div class="rounded-circle bg-warning bg-opacity-10 p-2">
                            <i class="bi bi-exclamation-triangle text-warning fs-5"></i>
                        </div>
                        <div>
                            <div class="fs-4 fw-bold text-warning">@ViewBag.AtRiskCount</div>
                            <div class="small text-muted">At Risk</div>
                        </div>
                    </div>
                </div>
            </a>
        </div>
        <div class="col-6 col-lg-3">
            <a href="@Url.Action("Index", new { risk = "Critical", search = ViewBag.Search })"
               class="card border-0 shadow-sm text-decoration-none @(ViewBag.Risk == "Critical" ? "border-bottom border-3 border-danger" : "")">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <div class="rounded-circle bg-danger bg-opacity-10 p-2">
                            <i class="bi bi-x-circle text-danger fs-5"></i>
                        </div>
                        <div>
                            <div class="fs-4 fw-bold text-danger">@(ViewBag.CriticalCount + ViewBag.NeverActivatedCount)</div>
                            <div class="small text-muted">Critical / Dormant</div>
                        </div>
                    </div>
                </div>
            </a>
        </div>
    </div>

    @* Config issues summary card *@
    <div class="row g-3 mb-3">
        <div class="col-12 col-lg-4">
            <a href="@Url.Action("Index", new { configIssuesOnly = true, search = ViewBag.Search })"
               class="card border-0 shadow-sm text-decoration-none @((bool)(ViewBag.ConfigIssuesOnly ?? false) ? "border-bottom border-3 border-danger" : "")">
                <div class="card-body py-3">
                    <div class="d-flex align-items-center gap-3">
                        <div class="rounded-circle bg-danger bg-opacity-10 p-2">
                            <i class="bi bi-tools text-danger fs-5"></i>
                        </div>
                        <div>
                            <div class="fs-4 fw-bold @((int)(ViewBag.ConfigIssuesCount ?? 0) > 0 ? "text-danger" : "text-success")">
                                @ViewBag.ConfigIssuesCount
                            </div>
                            <div class="small text-muted">Config Issues</div>
                        </div>
                        @if ((int)(ViewBag.ConfigIssuesCount ?? 0) > 0)
                        {
                            <div class="ms-auto">
                                <span class="badge bg-danger rounded-pill">Action needed</span>
                            </div>
                        }
                    </div>
                </div>
            </a>
        </div>
    </div>

    @* Search + filter bar *@
    <div class="card border-0 shadow-sm mb-3">
        <div class="card-body py-2">
            <form method="get" class="row g-2 align-items-end">
                <div class="col-md-4">
                    <input name="search" value="@ViewBag.Search" class="form-control form-control-sm"
                           placeholder="Company name or email&hellip;" />
                </div>
                <div class="col-md-3">
                    <select name="risk" class="form-select form-select-sm">
                        <option value="">All risk levels</option>
                        <option value="Healthy"        selected="@(ViewBag.Risk == "Healthy")">Healthy</option>
                        <option value="AtRisk"         selected="@(ViewBag.Risk == "AtRisk")">At Risk</option>
                        <option value="Critical"       selected="@(ViewBag.Risk == "Critical")">Critical</option>
                        <option value="NeverActivated" selected="@(ViewBag.Risk == "NeverActivated")">Never Activated</option>
                    </select>
                </div>
                <div class="col-md-3 d-flex align-items-center">
                    <div class="form-check mb-0">
                        <input class="form-check-input" type="checkbox" name="configIssuesOnly" value="true"
                               id="configOnly" @((bool)(ViewBag.ConfigIssuesOnly ?? false) ? "checked" : "") />
                        <label class="form-check-label small" for="configOnly">Config issues only</label>
                    </div>
                </div>
                <input type="hidden" name="showChurned" value="@showChurned.ToString().ToLower()" />
                <div class="col-auto">
                    <button class="btn btn-sm btn-primary">Filter</button>
                    <a asp-action="Index" class="btn btn-sm btn-outline-secondary ms-1">Clear</a>
                </div>
            </form>
        </div>
    </div>

    @* Table *@
    <div class="card border-0 shadow-sm">
        <div class="table-responsive">
            <table class="table table-hover align-middle mb-0 small">
                <thead class="table-light">
                    <tr>
                        <th>Company</th>
                        <th>Plan</th>
                        <th style="width:110px">Risk</th>
                        <th style="width:70px">Score</th>
                        <th>Last Login</th>
                        <th>Jobs 30d</th>
                        <th>Jobs 90d</th>
                        <th>Total</th>
                        <th>Engagement Signals</th>
                        <th>Config</th>
                        <th></th>
                    </tr>
                </thead>
                <tbody>
                    @if (!Model.Any())
                    {
                        <tr><td colspan="10" class="text-center text-muted py-5">No companies match the current filter.</td></tr>
                    }
                    @foreach (var h in Model)
                    {
                        var manageUrl = Url.Action("Manage", "SubscriptionManagement", new { id = h.Id });
                        <tr class="@RowClass(h.RiskLevel)" style="cursor:pointer" onclick="window.location='@manageUrl'">
                            <td>
                                <div class="fw-medium">
                                    @h.CompanyName
                                    @if (h.IsComped)
                                    {
                                        <span class="badge bg-success-subtle text-success ms-1 small">Comped</span>
                                    }
                                    @if (!h.IsActive)
                                    {
                                        <span class="badge bg-danger ms-1 small">Inactive</span>
                                    }
                                </div>
                                <small class="text-muted">@h.PrimaryContactEmail</small>
                            </td>
                            <td class="text-muted">@h.PlanDisplayName</td>
                            <td>
                                <span class="badge @RiskBadge(h.RiskLevel)">@RiskLabel(h.RiskLevel)</span>
                            </td>
                            <td>
                                @if (h.RiskLevel == ChurnRisk.NeverActivated)
                                {
                                    <span class="text-muted">&mdash;</span>
                                }
                                else
                                {
                                    <span class="fw-semibold @ScoreColor(h.HealthScore)">@h.HealthScore</span>
                                }
                            </td>
                            <td class="@LoginClass(h.DaysSinceLastLogin)">
                                @LoginLabel(h.DaysSinceLastLogin)
                            </td>
                            <td>
                                @if (h.JobsLast30Days > 0)
                                { <span class="fw-medium text-success">@h.JobsLast30Days</span> }
                                else
                                { <span class="text-muted">0</span> }
                            </td>
                            <td>
                                @if (h.JobsLast90Days > 0)
                                { <span class="fw-medium">@h.JobsLast90Days</span> }
                                else
                                { <span class="text-muted">0</span> }
                            </td>
                            <td class="text-muted">@h.TotalJobs</td>
                            <td>
                                @if (h.RiskSignals.Any())
                                {
                                    <div class="d-flex flex-wrap gap-1">
                                        @foreach (var s in h.RiskSignals)
                                        {
                                            <span class="badge bg-secondary-subtle text-secondary fw-normal">@s</span>
                                        }
                                    </div>
                                }
                                else
                                {
                                    <span class="text-success small"><i class="bi bi-check-circle me-1"></i>All clear</span>
                                }
                            </td>
                            <td onclick="event.stopPropagation()">
                                @if (h.ConfigHealth.IsHealthy)
                                {
                                    <span class="badge bg-success"><i class="bi bi-check-lg me-1"></i>OK</span>
                                }
                                else
                                {
                                    var configUrl = Url.Action("Details", "Companies", new { id = h.Id });
                                    <a href="@configUrl" class="badge @ConfigBadgeClass(h.ConfigHealth) text-decoration-none"
                                       title="@string.Join(" | ", h.ConfigHealth.Issues.Select(i => i.Title))">
                                        <i class="bi bi-exclamation-triangle me-1"></i>
                                        @h.ConfigHealth.Issues.Count issue@(h.ConfigHealth.Issues.Count == 1 ? "" : "s")
                                    </a>
                                }
                            </td>
                            <td onclick="event.stopPropagation()">
                                <a href="@manageUrl" class="btn btn-sm btn-outline-secondary py-0 px-2">
                                    <i class="bi bi-pencil"></i>
                                </a>
                            </td>
                        </tr>
                    }
                </tbody>
            </table>
        </div>

        <!-- Mobile card view &mdash; shown on screens < 992px -->
        <div class="mobile-card-view">
            <div class="mobile-card-list">
                @foreach (var h in Model)
                {
                    var manageUrl = Url.Action("Manage", "SubscriptionManagement", new { id = h.Id });
                    <a href="@manageUrl" class="mobile-data-card text-decoration-none">
                        <div class="mobile-card-header">
                            <div class="mobile-card-icon bg-primary"><i class="bi bi-building"></i></div>
                            <div class="mobile-card-title">
                                <h6>
                                    @h.CompanyName
                                    @if (!h.IsActive) { <span class="badge bg-danger ms-1" style="font-size:0.6rem">Inactive</span> }
                                </h6>
                                <small>Last login: @LoginLabel(h.DaysSinceLastLogin)</small>
                            </div>
                        </div>
                        <div class="mobile-card-body">
                            <div class="mobile-card-row">
                                <span class="mobile-card-label">Risk</span>
                                <span class="mobile-card-value"><span class="badge @RiskBadge(h.RiskLevel)">@RiskLabel(h.RiskLevel)</span></span>
                            </div>
                            @if (h.RiskLevel != ChurnRisk.NeverActivated)
                            {
                                <div class="mobile-card-row">
                                    <span class="mobile-card-label">Score</span>
                                    <span class="mobile-card-value fw-semibold @ScoreColor(h.HealthScore)">@h.HealthScore</span>
                                </div>
                            }
                            <div class="mobile-card-row">
                                <span class="mobile-card-label">Plan</span>
                                <span class="mobile-card-value">@h.PlanDisplayName</span>
                            </div>
                            <div class="mobile-card-row">
                                <span class="mobile-card-label">Jobs (30d / 90d)</span>
                                <span class="mobile-card-value">@h.JobsLast30Days / @h.JobsLast90Days</span>
                            </div>
                            @if (h.RiskSignals.Any())
                            {
                                <div class="mobile-card-row">
                                    <span class="mobile-card-label">Signals</span>
                                    <span class="mobile-card-value">@string.Join(", ", h.RiskSignals)</span>
                                </div>
                            }
                        </div>
                        <div class="mobile-card-footer">
                            <span class="btn btn-sm btn-outline-secondary">Manage →</span>
                        </div>
                    </a>
                }
            </div>
        </div>

        @if (!Model.Any(h => h.RiskLevel != ChurnRisk.Healthy) && Model.Any())
        {
            <div class="card-footer text-center py-3 text-success">
                <i class="bi bi-check-circle-fill me-2"></i>All tenants are healthy &mdash; no churn signals detected.
            </div>
        }
    </div>
</div>