extensions [sound nw] ;; For using sound and Network package

globals [
  min-prevalence
  max-prevalence
  meta-influencers-droit
  meta-influencers-gauche
  iter change total inversion try major fractale
  ordonnee abcisse profondeur
  list_data file-in in_data repet_data
  links-dead links-create meta-agents meta-links meta-create Interactions %Major

  ;; === CSV export ===
  csv-export
  csv-basename
  csv-file
  csv-open?

  ;; === Paramètres d’inversion / ponts (sliders UI possibles) ===
  ;;prevalence-weight      ;; >= 0 ; amplification du rôle de Δprégnance
  ;;adoption-floor         ;; [0..1] ; plancher minimal pour la pénalité de polarisation
  ;;bridge-prob            ;; [0..1] ; probabilité de créer un lien-pont (opinion éloignée)

  ;; === Paramètres de RÉCOMPENSE (sliders/inputs UI) ===
  ;;reward-step        ;; palier d’augmentation du bonus à chaque succès (ex: 0.05)
  ;;reward-cap         ;; plafond du bonus cumulé (ex: 0.50)
  ;;reward-scope       ;; "both" | "left-only" | "right-only"
  ;;reward-prev-delta  ;; hausse de prégnance du ciblé au succès (ex: 0..5), 0 = off
  ;;reward-decay       ;; décroissance du bonus par tick (ex: 0..0.01), 0 = off
]

turtles-own [
  opinion         ;; [-1, 1]
  prevalence      ;; [min-prevalence, max-prevalence]
  agent-type      ;; "Right side" | "Left side"
  influence       ;; [0, 1]
  opinion-previous
  influence-previous
  x3d y3d z3d

  ;; Mèmes (stock pro/anti)
  meme-plus
  meme-minus

  ;; variables utilitaires
  old-opinion
  proposed-opinion

  ;; Récompense de transmission (bonus multiplicatif p-adopt côté émetteur)
  tx-bonus
]

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; SETUP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to setup
  clear-all
  set repet_data false
  set iter 0
  set min-prevalence 0
  set max-prevalence 99
  set-default-shape turtles "person"
  set try 1
  set major 0
  set tick-event event-init
  set links-dead 0
  set links-create 0
  set meta-create 0
  set meta-agents 0
  set change 0
  set total 0
  set inversion 0
  set fractale 0
  if vary-influence = true or meta-ok = true [ set meta-links meta-min ]

  ;; === Defaults CSV ===
  if not is-boolean? csv-export [ set csv-export false ]
  if (not is-string? csv-basename) or (csv-basename = "") [ set csv-basename "run" ]
  set csv-open? false

  ;; === Defaults IMPACT DE GROUPE ===
  if (not is-string? group-impact-mode) [ set group-impact-mode "all" ]    ;; "all" | "k-nearest"
  if (not is-number? group-k) [ set group-k 10 ]
  if (not is-number? group-impact-weight) [ set group-impact-weight 0.5 ]
  if (not is-number? group-impact-alpha) [ set group-impact-alpha 1.0 ]

  ;; === Default switches ===
  if not is-boolean? show-links? [ set show-links? false ]
  if not is-boolean? metablock   [ set metablock false ]

  ;; === Defaults inversion/ponts ===
  if (not is-number? prevalence-weight) [ set prevalence-weight 1.5 ]
  if (not is-number? adoption-floor)    [ set adoption-floor 0.02 ]
  if (not is-number? bridge-prob)       [ set bridge-prob 0.10 ]

  ;; === Defaults REWARD ===
  if not is-number? reward-step       [ set reward-step 0.05 ]
  if not is-number? reward-cap        [ set reward-cap  0.50 ]
  if not is-string? reward-scope      [ set reward-scope "both" ]
  if not is-number? reward-prev-delta [ set reward-prev-delta 0 ]
  if not is-number? reward-decay      [ set reward-decay 0 ]

  ;; === Defaults MEMES ===
  if not is-boolean? use-memes?    [ set use-memes? false ]
  if not is-number? meme-max       [ set meme-max 100 ]
  if not is-number? meme-gain      [ set meme-gain 1.0 ]
  if not is-number? meme-anti-leak [ set meme-anti-leak 0.0 ]
  if not is-number? meme-decay     [ set meme-decay 0.0 ]

  set-background-black

  create
  rapport
end 

to create
  ;; Right side
  create-turtles pop / 2 [
    set agent-type "Right side"
    set opinion random-float 1                     ;; (0,1)
    set color blue
    set prevalence random-float (opinion * 100)
    set influence random-float 1
    set opinion-previous opinion
    set influence-previous influence
    set tx-bonus 0

    ;; init mèmes cohérente avec (prevalence, opinion)
    let tot initial-prevalence-to-memes prevalence
    ifelse opinion >= 0 [
      set meme-plus  tot * (0.5 + 0.5 * abs opinion)
      set meme-minus tot - meme-plus
    ] [
      set meme-minus tot * (0.5 + 0.5 * abs opinion)
      set meme-plus  tot - meme-minus
    ]
    update-3d self
  ]

  ;; Left side
  create-turtles pop / 2 [
    set agent-type "Left side"
    set opinion (random-float 1 - 1)               ;; (-1,0)
    set color red
    set prevalence random-float (abs opinion * 100)
    set influence random-float 1
    set opinion-previous opinion
    set influence-previous influence
    set tx-bonus 0

    ;; init mèmes cohérente avec (prevalence, opinion)
    let tot initial-prevalence-to-memes prevalence
    ifelse opinion >= 0 [
      set meme-plus  tot * (0.5 + 0.5 * abs opinion)
      set meme-minus tot - meme-plus
    ] [
      set meme-minus tot * (0.5 + 0.5 * abs opinion)
      set meme-plus  tot - meme-minus
    ]
    update-3d self
  ]

  ;; Méta-influenceurs initiaux
  influenceurs

  reset-ticks

  set total 0
  set change 0
  set Interactions 0
  set %Major 0
  update-networks

  recolor-links
  apply-link-visibility
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; SORTIES / RAPPORT
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to rapport
  if output = "Statistics" [
    output-print (word
      "Try ; " "Iter ; "
      "Opinion global ; "
      "Opinion right side ; "
      "Opinion left side ; "
      "Prevalence right side ; "
      "Prevalence left side ; "
      "Influence right side ; "
      "Influence left side ; "
      "Left % ; "  "Right % ; "
      "Links-Remove ; " "Links-Create ; "
      "Inversion % ; " "change ; " "total ; " "fractale")
  ]
  if output = "Values" [
    output-print (word "Try ; " "Ticks ; "  "Agents ; "
                        "Prevalence ; " "Opinion ; " "Influence ; " "meme droit ;" "meme plus ; " "meme minus")
  ]

  if output = "File" [
   ; ask turtles [
     ; let pre prevalence
      ;let mem opinion
     ; let infl influence
     ; let ti ticks
      output-print (word "ti ; "  "pre ;"  "mem ; " "infl ; " "agent")
   ; ]
  ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; META-INFLUENCEURS
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to influenceurs
  ;; All
  if meta-influencers-selection = "All" [
    let k round (count turtles * meta-influencers / 100)
    if k > 0 [
      ask n-of k turtles [
        if (prevalence >= prev-low and prevalence <= prev-high) [
          set influence 1
          set color yellow
          set meta-agents meta-agents + 1
        ]
      ]
    ]
  ]
  ;; Right side
  if meta-influencers-selection = "Right side" [
    set meta-influencers-droit round (count turtles * meta-influencers / 100)
    let candidates turtles with [opinion > 0]
    let k min list meta-influencers-droit count candidates
    if k > 0 [
      ask n-of k candidates [
        if (prevalence > prev-low and prevalence <= prev-high) [
          set influence 1
          set color yellow
          set meta-agents meta-agents + 1
        ]
      ]
    ]
  ]
  ;; Left side
  if meta-influencers-selection = "Left side" [
    set meta-influencers-gauche round (count turtles * meta-influencers / 100)
    let candidates turtles with [opinion < 0]
    let k min list meta-influencers-gauche count candidates
    if k > 0 [
      ask n-of k candidates [
        if (prevalence > prev-low and prevalence <= prev-high) [
          set influence 1
          set color yellow
          set meta-agents meta-agents + 1
        ]
      ]
    ]
  ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; OUTILS MÉTA / VETO
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; Un agent est "méta" s'il est jaune OU si son influence vaut 1

to-report meta?
  report (color = yellow) or (influence = 1)
end 

;; Change l'opinion en respectant le veto méta quand metablock = true.
;; Solution 1 (renforcement sans inversion) :
;; - si la nouvelle opinion change le signe d’un méta alors que metablock=ON,
;;   on conserve le signe ACTUEL et on prend la magnitude MAX(abs(old), abs(new)).

to maybe-set-opinion [ new-op ]
  let old-op opinion
  let bounded-op max list -1 min list 1 new-op
  if metablock and meta? and (sign old-op != sign bounded-op) [
    let mag max list (abs old-op) (abs bounded-op)
    set opinion (sign old-op) * mag
    stop
  ]
  set opinion bounded-op
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; BOUCLE PRINCIPALE
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to go
  ifelse (iter < max_iter) [
    if iter > 0 [ set Interactions (total / iter) ]
    if iter > 0 [ set %Major (major / iter * 100) ]
    set iter iter + 1
    set meta-create 0

    if (iter = 1 and csv-export and not csv-open?) [ csv-begin ]

    ifelse auto_event = true [ if (tick-event = iter) 
      [event if repeat-event [set tick-event (tick-event + event-pace)]] ] 
    [set tick-event (iter + event-pace)]
    if meta-ok = true [ meta ]

    update-opinions
    if network = true [ update-networks ]
    recolor-links
    apply-link-visibility

    if output = "Statistics" [
      let avg-opinion mean [opinion] of turtles
      let positive-opinion safe-median (turtles with [opinion >= 0]) "opinion"
      let negative-opinion safe-median (turtles with [opinion < 0])  "opinion"
      let positive-prevalence (safe-median (turtles with [opinion >= 0]) "prevalence") / 100
      let negative-prevalence (safe-median (turtles with [opinion < 0])  "prevalence") / 100
      let positive-influence safe-median (turtles with [opinion >= 0]) "influence"
      let negative-influence safe-median (turtles with [opinion < 0])  "influence"
      let Left%  (count turtles with [opinion < 0])  / (pop / 100)
      let Right% (count turtles with [opinion >= 0]) / (pop / 100)
      let ti iter
      output-print (word try " ; " ti " ; " avg-opinion " ; "
                        positive-opinion " ; " negative-opinion " ; "
                        positive-prevalence " ; " negative-prevalence " ; "
                        positive-influence " ; " negative-influence " ; "
                        Left% " ; " Right% " ; "
                        links-dead " ; " links-Create " ; "
                        inversion " ; " change " ; " total " ; " fractale)
    ]

    tick

    if (change > 1 and total > 1) [
      set fractale (ln total) / (ln change)
    ]

    if (cumulative = false) [
      set change 0
      set total 0
    ]

    colorer

    if (refresh = true) [
      if ticks > 200 [ reset-ticks clear-plot ]
    ]

    if threshold <= (count turtles with [opinion > 0]) / (pop / 100) [
      set major major + 1
    ]

    if csv-export [ csv-row ]

  ] [
    ifelse (try < nb_try) [
      if csv-export [ csv-end ]

      set try try + 1
      set major 0
      clear-turtles
      clear-plot
      set change 0
      set total 0
      set fractale 0
      set meta-links meta-min
      set iter 0
      set tick-event event-init
      set links-create 0
      set links-dead 0
      set meta-create 0
      set meta-agents 0
      set min-prevalence 0
      set max-prevalence 99
      ifelse (repet_data = true) [
        data
      ] [
        create
        set meta-links meta-min
      ]
    ] [
      if csv-export [ csv-end ]
      sound:play-note "Tubular Bells" 60 64 1
      stop
    ]
   
  ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; MISE À JOUR DES OPINIONS (effet de groupe + récompenses + mèmes + veto méta)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to update-opinions
  ask turtles [
    set opinion-previous opinion
    let target one-of link-neighbors
    if target != nobody [
      ;; Δprégnance (tolérance 1)
      let raw-dprev ([prevalence] of target) - prevalence
      if raw-dprev < 1 [ set raw-dprev 0 ]
      let dprev raw-dprev / max-prevalence

      if dprev > 0 [
        ;; distance mémique en valeur absolue des signes
        let dmem abs(abs(opinion) - abs([opinion] of target))

        ;; base-prob + pénalité de polarisation
        let base-prob dprev * prevalence-weight
        let pol-penalty max list adoption-floor (1 - polarization-factor * dmem)

        ;; probabilité brute (sans groupe), pondérée par influence & tx-bonus de l’émetteur
        let p-adopt base-prob * pol-penalty * [influence] of target * (1 + [tx-bonus] of target)

        ;; effet de groupe
        let sgn-emetteur sign ([opinion] of target)
        let gprob group-alignment-effective self sgn-emetteur
        let w group-impact-weight
        let alpha group-impact-alpha
        set p-adopt p-adopt * ((1 - w) + (w * (gprob ^ alpha)))

        ;; borne [0,1]
        if p-adopt < 0 [ set p-adopt 0 ]
        if p-adopt > 1 [ set p-adopt 1 ]

        ;; tirage
        if random-float 1 < p-adopt [
          set old-opinion opinion
          set proposed-opinion [opinion] of target

          ifelse use-memes? [
            ;; renforcement des mèmes du receveur selon le signe de l’émetteur
            transmit-memes target
            ;; opinion & prevalence dérivées des mèmes (protégées par metablock)
            recompute-from-memes
          ] [
            ;; adoption « historique » protégée par veto
            maybe-set-opinion proposed-opinion
          ]

          ;; si veto/reflexion n’a pas modifié le signe et que rien n’a changé → pas de reward
          if opinion = old-opinion [ stop ]

          ;; succès de transmission
          set total total + 1

          ;; récompense à l’émetteur si éligible
          let emitter-sign sign ([opinion] of target)
          let eligible? (reward-scope = "both") or
                         (reward-scope = "left-only"  and emitter-sign < 0) or
                         (reward-scope = "right-only" and emitter-sign >= 0)
          if eligible? [
            ask target [
              set tx-bonus min (list reward-cap (tx-bonus + reward-step))
            ]
          ]

          ;; option : hausse de prégnance du ciblé
          if reward-prev-delta > 0 [
            set prevalence min (list max-prevalence (prevalence + reward-prev-delta))
          ]

          ;; dynamique d’influence (logique existante)
          set influence-previous influence
          if vary-influence = true [
            if abs(old-opinion) > abs(opinion) [
              set influence min (list 1 (influence + rate-infl))
              if (influence-previous < 1 and influence = 1) [
                if meta-ok = true [
                  if meta-links < meta-max [ set meta-links meta-links + 1 ]
                  set meta-agents meta-agents + 1
                ]
                set color yellow
              ]
            ]
            if abs(old-opinion) < abs(opinion) [
              set influence max (list 0 (influence - rate-infl))
              if (influence < influence-previous and influence-previous = 1) [
                if meta-ok = true [
                  set meta-agents meta-agents - 1
                  ifelse opinion >= 0 [ set color blue ] [ set color red ]
                ]
              ]
            ]
          ]

          ;; comptage des inversions (si non bloquée par veto/réflexion)
          if (sign old-opinion) != (sign opinion) [
            set change change + 1
          ]
        ]
      ]
    ]

    ;; modulation de la prévalence
    if mod-prev = true [
      if prevalence > abs opinion * 100 [
        set prevalence prevalence - abs(opinion - opinion-previous) * influence * Rate-mod
      ]
      if prevalence < abs opinion * 100 [
        set prevalence prevalence + abs(opinion - opinion-previous) * influence * Rate-mod
      ]
      if prevalence < min-prevalence [ set prevalence min-prevalence ]
      if prevalence > max-prevalence [ set prevalence max-prevalence ]
    ]

    ;; bruit additif (protégé par veto/réflexion)
    if random-float 1 < noise [
      let delta (random-float 0.4 - 0.2)
      maybe-set-opinion (opinion + delta)
    ]

    ;; décroissance des mèmes éventuelle
    if use-memes? [ decay-memes ]

    ;; update 3D
    update-3d self

    ;; logging
    if (output = "Values" or output = "File") [
      compute-statistics
    ]
  ]

  ;; décroissance du bonus (optionnelle)
  if reward-decay > 0 [
    ask turtles [
      set tx-bonus max (list 0 (tx-bonus - reward-decay))
    ]
  ]

  ;; inversion %
  ifelse (total > 0)
    [ set inversion (100 * change / total) ]
    [ set inversion 0 ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; COLORATION
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to colorer
  ask turtles [
    ifelse meta? [
      set color yellow
    ] [
      ifelse opinion >= 0 [ set color blue ] [ set color red ]
    ]
  ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; MISE À JOUR DU RÉSEAU (suppression/formation + ponts)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to update-networks
  ;; suppression
  let doomed links with [
    abs([opinion] of end1 - [opinion] of end2) > (link-removal-threshold / 100)
  ]
  let doomedProb doomed with [ random-float 1 < prob ]
  let n-remove min (list linksdown count doomedProb)
  if n-remove > 0 [
    ask n-of n-remove doomedProb [ die ]
    set links-dead links-dead + n-remove
  ]

  ;; formation
  let j linksup
  while [j > 0] [
    let t one-of turtles
    if t = nobody [ stop ]
    ask t [
      let myop opinion
      let candidates other turtles with [ not link-neighbor? myself ]
      let pool-homo candidates with [ abs(opinion - myop) < (link-formation-threshold / 100) ]
      let pool-bridge candidates with [ (sign opinion) != (sign myop) ]

      let friend nobody
      if any? pool-bridge and (random-float 1 < bridge-prob) [
        set friend max-one-of pool-bridge [ abs(opinion - myop) ]
      ]
      if (friend = nobody) and any? pool-homo [
        set friend min-one-of pool-homo [ abs(opinion - myop) ]
      ]

      if friend != nobody and (random-float 1 < prob) [
        create-link-with friend
        set links-create links-create + 1
        let same-sign? (sign opinion) = (sign [opinion] of friend)
        ask link-with friend [
          set color (ifelse-value same-sign? [ green ] [ gray ])
          set thickness linktick
          if show-links? [ show-link ]
        ]
      ]
    ]
    set j j - 1
  ]
end 

to meta
  if not network [ stop ]
  ask turtles [
    let pool other turtles with [
      color = yellow and
      not link-neighbor? myself and
      (count link-neighbors) < meta-links
    ]
    if any? pool [
      let friend one-of pool
      create-link-with friend
      let same-sign? (sign opinion) = (sign [opinion] of friend)
      ask link-with friend [
        set color (ifelse-value same-sign? [ green ] [ gray ])
        set thickness linktick
        if show-links? [ show-link ]
      ]
    ]
  ]
end 

to apply-link-visibility
  ifelse show-links? [
    ask links [ show-link ]
  ] [
    ask links [ hide-link ]
  ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; STATISTIQUES RUNTIME
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to compute-statistics
  if output = "Values" [
    let pre prevalence
    let mem opinion
    let infl influence
    let ag who
    let ti ticks
    let ess try
    let memed (count turtles with [opinion > 0]) / (pop / 100)
    let maj major
    let mplus meme-plus
    let mminus meme-minus
    
    output-print (word ess " ; " ti " ; "  ag " ; " pre " ; "  mem " ; " infl " ; " memed " ; " mplus " ; " mminus)
  ]
  if output = "File" [
    let pre prevalence
    let mem opinion
    let infl influence
    let ti ticks
    let ag who
        
    output-print (word ti " ; " pre " ; " mem " ; " infl " ; " ag)
  ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; I/O : LECTURE FICHIER D’AGENTS
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to in_file
  carefully [
    set file-in user-file
    if (file-in != false) [
      set list_data []
      file-open file-in
      while [not file-at-end?] [
        set list_data sentence list_data (list (list file-read file-read file-read file-read))
      ]
      file-close
      user-message "File uploaded!"
      set in_data true
    ]
  ] [
    user-message "File read error"
  ]
  data
end 

to data
  clear-turtles
  clear-links
  let tick_to_load choice_iter

  ifelse (is-list? list_data) [
    let filtered_data filter [ row -> first row = tick_to_load ] list_data

    create-turtles length filtered_data [
      let my_index who
      let agent_data item my_index filtered_data

      set prevalence item 1 agent_data
      set opinion    item 2 agent_data
      set influence  item 3 agent_data
      if influence = 1 [ set meta-agents meta-agents + influence ]
      set opinion-previous opinion
      set influence-previous influence
      set tx-bonus 0

      if opinion < 0 [ set color red  set agent-type "Left side"  ]
      if opinion > 0 [ set color blue set agent-type "Right side" ]
      if influence = 1 [ set color yellow ]

      ;; init mèmes en cohérence
      let tot initial-prevalence-to-memes prevalence
      ifelse opinion >= 0 [
        set meme-plus  tot * (0.5 + 0.5 * abs opinion)
        set meme-minus tot - meme-plus
      ] [
        set meme-minus tot * (0.5 + 0.5 * abs opinion)
        set meme-plus  tot - meme-minus
      ]

      update-3d self
    ]
    ;influenceurs
  ] [
    set in_data false
    user-message "Read error"
  ]

  update-networks
  apply-link-visibility
  recolor-links

  influenceurs
  update-opinions
  set repet_data true
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ÉVÉNEMENT EXTERNE (protégé par veto/réflexion)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to event

  ask turtles [
     let event-prob random-float 1                     ;; (0,1)
  if event-prob <= event-prob-max [
    ifelse meme_set = true [
      if (to_left = false) [
        if agent-type = "Right side" [
          if opinion < 0 [
            maybe-set-opinion (opinion + event_size)
          ]
        ]
      ]
      if (to_left = true) [
        if agent-type = "Left side" [
          if opinion > 0 [
            maybe-set-opinion (opinion - event_size)
          ]
        ]
      ]
    ] [
      if (to_left = false) [
        if (opinion < high_meme and opinion > low_meme and prevalence < high-prev and prevalence > low-prev) [
          maybe-set-opinion (opinion + event_size)
          if (prev_change != 0) [ set prevalence min (list max-prevalence (prevalence + prev_change)) ]
        ]
      ]
      if (to_left = true) [
        if (opinion > low_meme and opinion < high_meme and prevalence > low-prev and prevalence < high-prev) [
          maybe-set-opinion (opinion - event_size)
          if (prev_change != 0) [ set prevalence min (list max-prevalence (prevalence + prev_change)) ]
        ]
      ]
    ]
    ;; init mèmes cohérente avec (prevalence, opinion)
    if use-memes? [  
    let tot initial-prevalence-to-memes prevalence
    ifelse opinion >= 0 [
      set meme-plus  tot * (0.5 + 0.5 * abs opinion)
      set meme-minus tot - meme-plus
    ] [
      set meme-minus tot * (0.5 + 0.5 * abs opinion)
      set meme-plus  tot - meme-minus
      ]]
  ]
]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; UTILITAIRES
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to set-background-black
  ask patches [ set pcolor black ]
end 

to update-3d [agt]
  ask agt [
    set x3d opinion * 16
    set y3d prevalence / 6
    set z3d influence * 16
    setxyz x3d y3d z3d
  ]
end 

to-report safe-median [agentset varname]
  if not any? agentset [ report 0 ]
  report median [ runresult varname ] of agentset
end 

to-report sign [x]
  ifelse x > 0 [ report 1 ] [ ifelse x < 0 [ report -1 ] [ report 0 ] ]
end 

to recolor-links
  ask links [
    let s1 sign [opinion] of end1
    let s2 sign [opinion] of end2
    ifelse s1 = s2
      [ set color green ]
      [ set color gray ]
    set thickness linktick
  ]
end 

;; IMPACT DE GROUPE (tous les voisins liés)

to-report group-alignment-all [agt sign-ref]
  let nbrs [link-neighbors] of agt
  if not any? nbrs [ report 0.5 ]
  let same count nbrs with [ (sign opinion) = sign-ref ]
  report same / count nbrs
end 

;; IMPACT DE GROUPE (k plus proches)

to-report group-alignment-k [agt sign-ref k]
  let nbrs [link-neighbors] of agt
  let deg count nbrs
  if deg = 0 [ report 0.5 ]
  let kk max list 1 min list deg floor k
  let agop [opinion] of agt
  let pool min-n-of kk nbrs [ abs(opinion - agop) ]
  if not any? pool [ report 0.5 ]
  let same count pool with [ (sign opinion) = sign-ref ]
  report same / count pool
end 

;; Sélecteur de mode

to-report group-alignment-effective [agt sign-ref]
  ifelse (group-impact-mode = "k-nearest")
  [ report group-alignment-k agt sign-ref group-k ]
  [ report group-alignment-all agt sign-ref ]
end 

;; Mapping prevalence -> stock initial de mèmes

to-report initial-prevalence-to-memes [prev]
  report (prev / 99) * meme-max
end 

;; Recalcule opinion & prevalence à partir des mèmes (protégé par veto/réflexion)

to recompute-from-memes
  let tot meme-plus + meme-minus
  if tot < 1e-6 [ set tot 1e-6 ]
  set proposed-opinion ((meme-plus - meme-minus) / tot)
  maybe-set-opinion proposed-opinion
  let scaled  (tot / meme-max) * 99
  if scaled < 0 [ set scaled 0 ]
  if scaled > 99 [ set scaled 99 ]
  set prevalence scaled
end 

;; Décroissance des mèmes

to decay-memes
  if meme-decay <= 0 [ stop ]
  set meme-plus  max list 0 (meme-plus  * (1 - meme-decay))
  set meme-minus max list 0 (meme-minus * (1 - meme-decay))
end 

;; Transmission des mèmes d’un émetteur vers le receveur (self)

to transmit-memes [emitter]
  let sgn sign [opinion] of emitter
  ifelse sgn >= 0 [
    set meme-plus  meme-plus + meme-gain
    set meme-minus max list 0 (meme-minus - meme-anti-leak * meme-gain)
  ] [
    set meme-minus meme-minus + meme-gain
    set meme-plus  max list 0 (meme-plus - meme-anti-leak * meme-gain)
  ]
  ;; plafonner en douceur
  let tot meme-plus + meme-minus
  if tot > meme-max [
    let factor meme-max / tot
    set meme-plus  meme-plus  * factor
    set meme-minus meme-minus * factor
  ]
end 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; EXPORT CSV (par essai)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

to csv-begin
  if not csv-export [ stop ]
  set csv-file (word csv-basename "-" try ".csv")
  file-close-all
  if file-exists? csv-file [ file-delete csv-file ]
  file-open csv-file
  set csv-open? true
  file-print "try,iter,tick,left_pct,right_pct,avg_opinion,med_op_right,med_op_left,med_prev_right,med_prev_left,med_infl_right,med_infl_left,links_remove,links_create,inversion_pct,change,total,fractale,major"
end 

to csv-row
  if not csv-open? [ stop ]
  let avg-opinion     mean [opinion] of turtles
  let opR             safe-median (turtles with [opinion >= 0]) "opinion"
  let opL             safe-median (turtles with [opinion < 0])  "opinion"
  let prevR           (safe-median (turtles with [opinion >= 0]) "prevalence") / 100
  let prevL           (safe-median (turtles with [opinion < 0])  "prevalence") / 100
  let inflR           safe-median (turtles with [opinion >= 0]) "influence"
  let inflL           safe-median (turtles with [opinion < 0])  "influence"
  let leftpct         (count turtles with [opinion < 0])  / (pop / 100)
  let rightpct        (count turtles with [opinion >= 0]) / (pop / 100)
  file-print (word try "," iter "," ticks ","
              leftpct "," rightpct "," avg-opinion ","
              opR "," opL "," prevR "," prevL ","
              inflR "," inflL ","
              links-dead "," links-create ","
              inversion "," change "," total "," fractale "," major)
end 

to csv-end
  if csv-open? [
    file-close
    set csv-open? false
  ]
end