@use 'sass:map';
@use '@angular/material' as mat;
@use 'styles';

@include mat.elevation-classes();
@include mat.app-background();

// ─── Typography ─────────────────────────────────────────────────────────────
// The stack is declared once on html; every Material typography token and the
// typography hierarchy read it through the variable. Inlined, the 103-char
// stack was copied into ~90 declarations (about 7 KB of the initial CSS).
$app-font-stack-value:
    "'DM Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif";
$app-font-stack: var(--app-font-family);

html {
    --app-font-family: #{$app-font-stack-value};
}

$my-typography: mat.m2-define-typography-config(
    $font-family: $app-font-stack,
);
@include mat.typography-hierarchy($my-typography);

// ─── M3 Themes ───────────────────────────────────────────────────────────────
// One primary color across the app. Azure is the closest M3 prebuilt to the
// product's "active/selection" blue (#2f7bff / #78adff), so checkboxes, radio
// buttons, raised CTAs, etc. now read as the same blue as rail selection.
//
// Cyan stays on tertiary so the EPG "now" indicator (which uses Material
// tertiary surfaces) keeps its existing visual role.
$light-theme: mat.define-theme(
    (
        color: (
            theme-type: light,
            primary: mat.$azure-palette,
            tertiary: mat.$cyan-palette,
        ),
        typography: (
            plain-family: $app-font-stack,
            brand-family: $app-font-stack,
        ),
    )
);

$dark-theme: mat.define-theme(
    (
        color: (
            theme-type: dark,
            primary: mat.$azure-palette,
            tertiary: mat.$cyan-palette,
        ),
        typography: (
            plain-family: $app-font-stack,
            brand-family: $app-font-stack,
        ),
    )
);

// ─── Apply Themes ────────────────────────────────────────────────────────────
html {
    @include mat.all-component-themes($light-theme);

    // The theme is built with the legacy `define-theme` config, whose
    // component mixins emit resolved component tokens but never declare the
    // `--mat-sys-*` system variables. App styles reference those variables
    // directly, so declare them explicitly for each theme context; without
    // this every such reference silently resolves to nothing.
    @include mat.system-level-colors($light-theme);
    @include mat.system-level-typography($light-theme);
    @include mat.system-level-elevation($light-theme);
    @include mat.system-level-shape($light-theme);
    @include mat.system-level-state($light-theme);

    // ── Light theme design tokens ─────────────────────────────────────────
    --app-shell-bg: #eef0f3;
    --app-rail-bg: #eef0f3;
    --app-header-bg: #eef0f3;
    --app-content-bg: #f5f6f8;
    --app-rail-border: transparent;
    --app-on-surface: #1d1b1e;
    --app-hover-overlay: rgba(0, 0, 0, 0.06);
    --app-search-bg: rgba(255, 255, 255, 0.7);
    --app-search-border: rgba(0, 0, 0, 0.1);
    --app-selection-color: #2f7bff;
    --app-selection-on-color: #eef4ff;
    --app-selection-surface: color-mix(
        in srgb,
        var(--app-selection-color) 14%,
        transparent
    );
    --app-selection-surface-strong: color-mix(
        in srgb,
        var(--app-selection-color) 22%,
        transparent
    );
    --app-selection-border: color-mix(
        in srgb,
        var(--app-selection-color) 52%,
        transparent
    );
    --app-selection-glow: color-mix(
        in srgb,
        var(--app-selection-color) 34%,
        transparent
    );
    // Watch progress in app chrome (rail cards, catalog capsules, the hero).
    // Over video the player's fixed `--pc-progress` applies instead.
    --app-progress-color: var(--app-selection-color);

    // Live / on-air accent (broadcast indicator)
    --app-live-color: #d12c2c;

    // Content area
    --app-content-shadow: -2px 4px 12px rgba(0, 0, 0, 0.06);

    // Widget surfaces — no borders, layered backgrounds
    --app-widget-bg: #ffffff;
    --app-widget-header-bg: #fafbfc;
    --app-widget-border: transparent;
    --app-widget-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
    --app-widget-header-border: rgba(0, 0, 0, 0.06);
    --app-card-hover-bg: #f0f2f5;
    --app-separator: rgba(0, 0, 0, 0.14);

    // Typography — subdued, not pure black
    --app-heading-color: #1a1d23;
    --app-body-color: #4a5060;
    --app-muted-color: #8891a4;
    --app-eyebrow-color: #7c8495;

    // Provider accent colors
    --app-provider-xtream: #2f7bff;
    --app-provider-stalker: #10b981;
    --app-provider-m3u: #d97706;

    // Subscription-expiry chips (dashboard source cards). Text/surface pairs
    // are picked per theme to keep >= 4.5:1 small-text contrast against the
    // composited chip background.
    --app-expiry-warn-text: #8a5300;
    --app-expiry-warn-surface: color-mix(in srgb, #d97706 16%, transparent);
    --app-expiry-expired-text: #b3261e;
    --app-expiry-expired-surface: color-mix(in srgb, #f44336 14%, transparent);

    // Hero
    --app-accent-gradient: linear-gradient(
        135deg,
        rgba(47, 123, 255, 0.08) 0%,
        rgba(92, 214, 255, 0.05) 100%
    );
    --app-hero-surface: rgba(47, 123, 255, 0.04);

    // Detail / hero call to action. The dark theme's light primary (#f2f4f8
    // on #0a0e14) inverts to a dark button on the light theme, so it reads as
    // the one solid CTA on either page background.
    --app-cta-bg: #1a1d23;
    --app-cta-fg: #f5f6f8;
    --app-cta-hover-bg: #2a2f3a;
    --app-cta-meta-fg: rgba(245, 246, 248, 0.68);
    // Star rating chip: a deep amber, since the chip's 12px text needs
    // 4.5:1 over hero artwork under the light scrim (#a16207 measured 3.4:1).
    --app-rating-color: #7a4a00;

    .dark-theme {
        @include mat.all-component-colors($dark-theme);
        // Only the color roles differ per theme: the elevation shadows are
        // the same black in both, so html's declarations already apply here.
        @include mat.system-level-colors($dark-theme);

        // ── Dark graphite theme ────────────────────────────────────────────
        // Inspired by both Slack (sidebar distinction) and GitButler (data density)
        // Key principle: clearly distinct surface layers using graphite steps
        // Darkest → lightest: #0d0f12 → #141720 → #1c2030 → #222840

        // App shell & navigation
        --app-shell-bg: #0d0f12;
        --app-rail-bg: #111318;
        --app-header-bg: #111318;
        --app-content-bg: #161a22;
        --app-rail-border: transparent;
        --app-on-surface: #e6e1e5;
        --app-hover-overlay: rgba(255, 255, 255, 0.08);
        --app-search-bg: rgba(255, 255, 255, 0.05);
        --app-search-border: rgba(255, 255, 255, 0.09);
        --app-selection-color: #78adff;
        --app-selection-on-color: #071225;
        --app-selection-surface: color-mix(
            in srgb,
            var(--app-selection-color) 18%,
            transparent
        );
        --app-selection-surface-strong: color-mix(
            in srgb,
            var(--app-selection-color) 28%,
            transparent
        );
        --app-selection-border: color-mix(
            in srgb,
            var(--app-selection-color) 62%,
            transparent
        );
        --app-selection-glow: color-mix(
            in srgb,
            var(--app-selection-color) 44%,
            transparent
        );
        // Re-declared so it resolves against this context's selection colour
        // rather than inheriting the light value computed on `html`.
        --app-progress-color: var(--app-selection-color);

        // Live / on-air accent (broadcast indicator)
        --app-live-color: #ff8f8f;

        // Content area
        --app-content-shadow: -4px 8px 20px rgba(0, 0, 0, 0.18);

        // Widget surfaces — NO border, surface contrast does the work
        // Widgets sit on content-bg (#161a22), so widget-bg is notably lighter
        --app-widget-bg: #1e2330;
        --app-widget-header-bg: #232840;
        --app-widget-border: transparent;
        --app-widget-shadow: none;
        --app-widget-header-border: rgba(255, 255, 255, 0.05);
        --app-card-hover-bg: #252b3a;
        --app-separator: rgba(255, 255, 255, 0.14);

        // Typography — NOT pure white. Warm graphite-tinted whites
        --app-heading-color: #d8dce8;       // soft off-white, not #fff
        --app-body-color: #8b93a8;          // muted blue-grey
        --app-muted-color: #5c6478;         // dimmed
        --app-eyebrow-color: #6b7494;       // eyebrow labels

        // Provider accents (slightly brighter for dark bg)
        --app-provider-xtream: #78adff;
        --app-provider-stalker: #34d399;
        --app-provider-m3u: #fbbf24;

        // Subscription-expiry chips — brighter text for the dark surfaces;
        // expired matches the --app-live-color accent family.
        --app-expiry-warn-text: #fbbf24;
        --app-expiry-warn-surface: color-mix(in srgb, #fbbf24 16%, transparent);
        --app-expiry-expired-text: #ff8f8f;
        --app-expiry-expired-surface: color-mix(
            in srgb,
            #ff8f8f 16%,
            transparent
        );

        // Hero section
        --app-accent-gradient: linear-gradient(
            135deg,
            rgba(120, 173, 255, 0.12) 0%,
            rgba(92, 214, 255, 0.07) 100%
        );
        --app-hero-surface: rgba(30, 35, 48, 0.9);

        // Detail / hero call to action (light primary) and rating accent
        --app-cta-bg: #f2f4f8;
        --app-cta-fg: #0a0e14;
        --app-cta-hover-bg: #ffffff;
        --app-cta-meta-fg: #5a6274;
        --app-rating-color: #ffcf5c;
    }
}

// ─── Global refined outlined inputs ──────────────────────────────────────────
// Applied app-wide AFTER mat.all-component-themes so these overrides win the
// cascade. Pairs with MAT_FORM_FIELD_DEFAULT_OPTIONS (outline + dynamic) set
// in app.config.ts.
$app-refined-input-density: mat.define-theme((
    density: (scale: -2),
));

html {
    @include mat.form-field-density($app-refined-input-density);

    // Declared on the field itself (not on html) so the var(--app-*) values
    // resolve inside .dark-theme instead of being inherited as light values.
    // The resting and hover outlines keep the theme's outline roles: the app
    // hairline tokens fall far under the 3:1 boundary contrast a field needs.
    // Labels use the body token, which clears 4.5:1 in both themes.
    // Text sizes stay on the theme defaults: this theme leaves the floated
    // label's size token undeclared, so it inherits the field's text size and
    // scales it to 75%; a 13px field would float a 10px label.
    .mat-mdc-form-field {
        @include mat.form-field-overrides(
            (
                outlined-focus-outline-color: var(--app-selection-color),
                outlined-container-shape: 10px,
                outlined-label-text-color: var(--app-body-color),
                outlined-hover-label-text-color: var(--app-body-color),
                outlined-focus-label-text-color: var(--app-selection-color),
                outlined-input-text-color: var(--app-heading-color),
                outlined-caret-color: var(--app-selection-color),
            )
        );
    }

    // Inputs sit slightly above the surrounding surface. color-mix is inlined
    // here (not via a custom property on html) so var(--app-widget-bg)
    // resolves at the wrapper — inside .dark-theme — rather than being
    // locked to the light-mode value at html-level inheritance.
    .mat-form-field-appearance-outline .mat-mdc-text-field-wrapper {
        background: color-mix(in srgb, var(--app-widget-bg) 85%, white 7%);
        border-radius: 10px;
    }

    .mat-mdc-form-field .mat-mdc-input-element,
    .mat-mdc-form-field .mat-mdc-select-value {
        font-size: 13.5px;
    }

    // ─── Destructive actions ───────────────────────────────────────────────
    // Material only emits `.mat-warn` button colors for M2 themes, so the
    // `warn` color input is a no-op with this M3 theme. Buttons that remove or
    // discard user data opt in with this class instead; the error tokens are
    // declared per theme context above, so light and dark each get their own
    // error/on-error pair.
    .app-destructive-button {
        @include mat.button-overrides(
            (
                filled-container-color: var(--mat-sys-error),
                filled-label-text-color: var(--mat-sys-on-error),
                filled-state-layer-color: var(--mat-sys-on-error),
                filled-ripple-color:
                    color-mix(in srgb, var(--mat-sys-on-error) 12%, transparent),
                text-label-text-color: var(--mat-sys-error),
                text-state-layer-color: var(--mat-sys-error),
                text-ripple-color:
                    color-mix(in srgb, var(--mat-sys-error) 12%, transparent),
                outlined-label-text-color: var(--mat-sys-error),
                outlined-outline-color: var(--mat-sys-error),
                outlined-state-layer-color: var(--mat-sys-error),
                outlined-ripple-color:
                    color-mix(in srgb, var(--mat-sys-error) 12%, transparent),
            )
        );
        @include mat.icon-button-overrides(
            (
                icon-color: var(--mat-sys-error),
                state-layer-color: var(--mat-sys-error),
                ripple-color:
                    color-mix(in srgb, var(--mat-sys-error) 12%, transparent),
            )
        );
    }

    .mat-mdc-form-field-subscript-wrapper {
        font-size: 11px;
        letter-spacing: 0.01em;
        margin-top: 2px;

        .mat-mdc-form-field-hint-wrapper,
        .mat-mdc-form-field-error-wrapper {
            padding: 0 12px;
        }

        .mat-mdc-form-field-hint {
            color: var(--app-muted-color);
        }
    }
}