# Thermostat - optional carousel screen (base id 7).
# A round dial for a Home Assistant climate.* entity (${climate_entity}):
#   * big centre = the target temperature; turn the KNOB to change it (by the entity's
#     target_temp_step). The new value is sent to HA ~0.6 s after you stop turning.
#   * "now ..." = the current room temperature; "RH ..%" = humidity (if the entity has it).
#   * top label + the target colour show the action: heating (orange) / cooling (blue) /
#     idle (teal) / off (grey). Bottom chip = the HVAC mode.
#   * TAP toggles the climate on/off.
#
# Set ${climate_entity} in your config. Remove this screen by dropping the file from the
# package "files:" list.

esphome:
  on_boot:
    - priority: 655
      then:
        - lambda: 'id(g_present)[7] = true;'   # register the thermostat screen

globals:
  - id: g_th_cur        # current temperature (-127 = no reading yet)
    type: float
    restore_value: no
    initial_value: '-127.0'
  - id: g_th_target     # target temperature (synced from HA; edited locally by the knob)
    type: float
    restore_value: no
    initial_value: '20.0'
  - id: g_th_action     # hvac_action: heating / cooling / idle / off (may be empty)
    type: std::string
    restore_value: no
  - id: g_th_mode       # hvac mode (the entity state): off / heat / cool / auto / heat_cool
    type: std::string
    restore_value: no
  - id: g_th_hum        # current humidity % (-1 = none)
    type: int
    restore_value: no
    initial_value: '-1'
  - id: g_th_min
    type: float
    restore_value: no
    initial_value: '7.0'
  - id: g_th_max
    type: float
    restore_value: no
    initial_value: '35.0'
  - id: g_th_step
    type: float
    restore_value: no
    initial_value: '0.5'
  - id: g_th_pending    # true = local edit not yet sent; blocks HA from overwriting the target
    type: bool
    restore_value: no
    initial_value: 'false'
  - id: g_th_lasttap    # last g_tap_seq we handled (one tap = one on/off toggle)
    type: int
    restore_value: no
    initial_value: '0'

script:
  # Sends the edited target to HA, but only ~0.6 s after the last knob turn (mode: restart).
  - id: th_commit
    mode: restart
    then:
      - delay: 600ms
      - homeassistant.action:
          action: climate.set_temperature
          data:
            entity_id: ${climate_entity}
            temperature: !lambda 'char b[8]; snprintf(b, sizeof(b), "%.1f", id(g_th_target)); return std::string(b);'
      - lambda: 'id(g_th_pending) = false;'
  # Redraws the dial from the state globals.
  - id: th_render
    then:
      - lvgl.label.update:
          id: th_target
          text: !lambda 'char b[12]; snprintf(b, sizeof(b), "%.1f°", id(g_th_target)); return std::string(b);'
      - lvgl.label.update:
          id: th_cur
          text: !lambda |-
            if (id(g_th_cur) < -100) return std::string("now --");
            char b[16]; snprintf(b, sizeof(b), "now %.1f°", id(g_th_cur)); return std::string(b);
      - lvgl.widget.update: { id: th_hum, hidden: !lambda 'return id(g_th_hum) < 0;' }
      - lvgl.label.update:
          id: th_hum
          text: !lambda |-
            if (id(g_th_hum) < 0) return std::string("");
            char b[12]; snprintf(b, sizeof(b), "RH %d%%", id(g_th_hum)); return std::string(b);
      - lvgl.label.update:
          id: th_mode
          text: !lambda |-
            std::string m = id(g_th_mode);
            if (m == "heat_cool") return std::string("Auto");
            if (m.empty()) return std::string("-");
            if (m[0] >= 'a' && m[0] <= 'z') m[0] -= 32; return m;
      - lvgl.arc.update:
          id: th_arc
          value: !lambda |-
            float r = id(g_th_max) - id(g_th_min);
            if (r <= 0) return 0.0f;
            float p = 100.0f * (id(g_th_target) - id(g_th_min)) / r;
            if (p < 0) p = 0; if (p > 100) p = 100;
            return p;
      - lvgl.label.update:
          id: th_action
          text: !lambda |-
            std::string m = id(g_th_mode), a = id(g_th_action);
            if (m == "off" || m.empty()) return std::string("OFF");
            if (a.find("heat") != std::string::npos || (a.empty() && m == "heat")) return std::string("HEATING");
            if (a.find("cool") != std::string::npos || (a.empty() && m == "cool")) return std::string("COOLING");
            if (a == "idle") return std::string("IDLE");
            if (!a.empty()) { if (a[0] >= 'a' && a[0] <= 'z') a[0] -= 32; return a; }
            if (m[0] >= 'a' && m[0] <= 'z') m[0] -= 32; return m;
      # accent colour for the action label + target by heat/cool/off/idle
      - if:
          condition:
            lambda: 'return id(g_th_mode) != "off" && !id(g_th_mode).empty() && (id(g_th_action).find("heat") != std::string::npos || (id(g_th_action).empty() && id(g_th_mode) == "heat"));'
          then:
            - lvgl.label.update: { id: th_action, text_color: 0xFF6B30 }
            - lvgl.label.update: { id: th_target, text_color: 0xFF6B30 }
            - lvgl.arc.update: { id: th_arc, indicator: { arc_color: 0xFF6B30 } }
          else:
            - if:
                condition:
                  lambda: 'return id(g_th_mode) != "off" && !id(g_th_mode).empty() && (id(g_th_action).find("cool") != std::string::npos || (id(g_th_action).empty() && id(g_th_mode) == "cool"));'
                then:
                  - lvgl.label.update: { id: th_action, text_color: 0x3FA9D6 }
                  - lvgl.label.update: { id: th_target, text_color: 0x3FA9D6 }
                  - lvgl.arc.update: { id: th_arc, indicator: { arc_color: 0x3FA9D6 } }
                else:
                  - if:
                      condition: { lambda: 'return id(g_th_mode) == "off" || id(g_th_mode).empty();' }
                      then:
                        - lvgl.label.update: { id: th_action, text_color: 0x6F9A92 }
                        - lvgl.label.update: { id: th_target, text_color: 0x6F9A92 }
                        - lvgl.arc.update: { id: th_arc, indicator: { arc_color: 0x44506A } }
                      else:
                        - lvgl.label.update: { id: th_action, text_color: 0x9FC7BE }
                        - lvgl.label.update: { id: th_target, text_color: 0xFFFFFF }
                        - lvgl.arc.update: { id: th_arc, indicator: { arc_color: 0x2FE6CF } }
      - lambda: |-      # position the target head-dot on the gauge
          float r = id(g_th_max) - id(g_th_min);
          float p = (r > 0) ? 100.0f * (id(g_th_target) - id(g_th_min)) / r : 0.0f;
          if (p < 0) p = 0; if (p > 100) p = 100;
          float a = (135.0f + p / 100.0f * 270.0f) * 0.01745329f;
          int x = 180 + (int) lroundf(144.0f * cosf(a)) - 9;
          int y = 180 + (int) lroundf(144.0f * sinf(a)) - 9;
          lv_obj_set_pos(id(th_dot), x, y);

sensor:
  - platform: homeassistant
    id: th_cur_s
    entity_id: ${room_temp_entity}
    on_value:
      - lambda: 'id(g_th_cur) = x;'
      - script.execute: th_render
  - platform: homeassistant
    id: th_tgt_s
    entity_id: ${climate_entity}
    attribute: temperature
    on_value:
      - lambda: 'if (!id(g_th_pending)) id(g_th_target) = x;'   # don't clobber a value being edited
      - script.execute: th_render
  - platform: homeassistant
    id: th_hum_s
    entity_id: ${climate_entity}
    attribute: current_humidity
    on_value:
      - lambda: 'id(g_th_hum) = (int) roundf(x);'
      - script.execute: th_render
  - platform: homeassistant
    id: th_min_s
    entity_id: ${climate_entity}
    attribute: min_temp
    on_value: [ lambda: 'id(g_th_min) = x;' ]
  - platform: homeassistant
    id: th_max_s
    entity_id: ${climate_entity}
    attribute: max_temp
    on_value: [ lambda: 'id(g_th_max) = x;' ]
  - platform: homeassistant
    id: th_step_s
    entity_id: ${climate_entity}
    attribute: target_temp_step
    on_value: [ lambda: 'if (x > 0) id(g_th_step) = x;' ]

text_sensor:
  - platform: homeassistant
    id: th_mode_s
    entity_id: ${climate_entity}          # the entity state IS the hvac mode
    on_value:
      - lambda: 'id(g_th_mode) = x;'
      - script.execute: th_render
  - platform: homeassistant
    id: th_action_s
    entity_id: ${climate_entity}
    attribute: hvac_action
    on_value:
      - lambda: 'id(g_th_action) = x;'
      - script.execute: th_render

interval:
  # Carousel nav: when selected, show the page and take the knob.
  - interval: 50ms
    then:
      - if:
          condition: { lambda: 'return id(g_nav_req) && id(g_base)==7;' }
          then:
            - lambda: 'id(g_nav_req) = false; id(g_knob_capture) = true; id(g_th_lasttap) = id(g_tap_seq);'
            - if: { condition: { lambda: 'return id(g_nav_anim)==0;' }, then: [lvgl.page.show: { id: page_thermostat, animation: move_left,   time: 250ms }] }
            - if: { condition: { lambda: 'return id(g_nav_anim)==1;' }, then: [lvgl.page.show: { id: page_thermostat, animation: move_right,  time: 250ms }] }
            - if: { condition: { lambda: 'return id(g_nav_anim)==2;' }, then: [lvgl.page.show: { id: page_thermostat, animation: move_top,    time: 250ms }] }
            - if: { condition: { lambda: 'return id(g_nav_anim)==3;' }, then: [lvgl.page.show: { id: page_thermostat, animation: move_bottom, time: 250ms }] }
            - script.execute: th_render
  # Knob (adjust target, debounced commit) + tap (on/off) while this screen is on top.
  - interval: 120ms
    then:
      - if:
          condition: { lambda: 'return id(g_base)==7 && id(g_knob_delta) != 0;' }
          then:
            - lambda: |-
                id(g_th_target) += id(g_knob_delta) * id(g_th_step);
                id(g_knob_delta) = 0;
                if (id(g_th_target) < id(g_th_min)) id(g_th_target) = id(g_th_min);
                if (id(g_th_target) > id(g_th_max)) id(g_th_target) = id(g_th_max);
                id(g_th_pending) = true;
            - script.execute: th_commit
            - script.execute: th_render
      - if:
          condition: { lambda: 'return id(g_base)==7 && id(g_tap_seq) != id(g_th_lasttap);' }
          then:
            - lambda: 'id(g_th_lasttap) = id(g_tap_seq);'
            - if:
                condition: { lambda: 'return id(g_th_mode) == "off";' }
                then:
                  - homeassistant.action:
                      action: climate.turn_on
                      data:
                        entity_id: ${climate_entity}
                else:
                  - homeassistant.action:
                      action: climate.turn_off
                      data:
                        entity_id: ${climate_entity}

lvgl:
  pages:
    - id: page_thermostat
      bg_color: 0x0B1020
      widgets:
        - obj:   # faint outer ring for depth
            id: th_ring_out
            align: CENTER
            width: 332
            height: 332
            radius: 166
            bg_opa: TRANSP
            border_width: 2
            border_color: 0x1B2740
            border_opa: 70%
            clickable: false
            scrollable: false
        - arc:
            id: th_arc
            align: CENTER
            width: 300
            height: 300
            arc_width: 12
            adjustable: false
            min_value: 0
            max_value: 100
            value: 50
            start_angle: 135
            end_angle: 45
            arc_color: 0x21304A
            indicator:
              arc_color: 0x2FE6CF
              arc_width: 12
        - obj:   # head-dot: white bead marking the target on the gauge (positioned in th_render)
            id: th_dot
            x: 0
            y: 0
            width: 18
            height: 18
            radius: 9
            bg_color: 0xFFFFFF
            bg_opa: COVER
            border_width: 0
            shadow_color: 0xFFFFFF
            shadow_width: 10
            shadow_opa: 55%
            clickable: false
            scrollable: false
        - label: { id: th_action, align: CENTER, y: -86, text: "", text_font: font_artist, text_color: 0x9FC7BE }
        - label: { id: th_target, align: CENTER, y: -14, text: "--", text_font: montserrat_48, text_color: 0xFFFFFF }
        - label: { id: th_cur, align: CENTER, y: 30, text: "now --", text_font: font_med, text_color: 0x9FC7BE }
        - label: { id: th_hum, align: CENTER, y: 58, text: "", text_font: font_artist, text_color: 0x3FA9D6, hidden: true }
        - label: { id: th_mode, align: CENTER, y: 92, text: "", text_font: font_artist, text_color: 0xCFEAE4 }