function GetContactsFromListBrevo {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$IdListe
    )

    if (-not $Global:ApiKey) {
        return [PSCustomObject]@{ Success = $false; Value = "La clé API n'est pas définie" }
    }

    $headers = @{
        "accept"  = "application/json"
        "api-key" = $Global:ApiKey
    }

    try {
        $response = Invoke-WebRequest `
            -Uri "https://api.brevo.com/v3/contacts/lists/$($IdListe)/contacts?limit=50&offset=0&sort=desc" `
            -Method GET `
            -Headers $headers

        $data = $response.Content | ConvertFrom-Json

        return [PSCustomObject]@{
            Success = $true
            Value   = $data
        }
    }
    catch {
        return [PSCustomObject]@{
            Success = $false
            Value   = "Erreur lors de la récupération des contacts de la liste $IdListe : $($_.Exception.Message)"
        }
    }
}

function AddContactToBrevo{
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$Email
    )
    
    if (-not $Global:ApiKey) {
        return [PSCustomObject]@{ Success = $false; Value = "La clé API n'est pas définie" }
    }

    $headers = @{
        "accept"  = "application/json"
        "content-type" = "application/json"
        "api-key" = $Global:ApiKey
    }

    $Body = @{
        email = $Email
    } | ConvertTo-Json -Depth 3

    try {
        $response = Invoke-WebRequest -Uri 'https://api.brevo.com/v3/contacts' `
                                      -Method POST `
                                      -Headers $headers `
                                      -ContentType 'application/json' `
                                      -Body $Body
        return [PSCustomObject]@{ Success = $true; Value = $response.Content }
    }
    catch {
        return [PSCustomObject]@{ Success = $false; Value = "Erreur lors de l'ajout de l'utilisateur $Email : $($_.Exception.Message)" }
    }
}

function AddContactBrevoToList{
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$Email,
        [Parameter(Mandatory=$true)]
        [string]$IdListe
    )
    
    if (-not $Global:ApiKey) {
        return [PSCustomObject]@{ Success = $false; Value = "La clé API n'est pas définie" }
    }

    $headers = @{
        "accept"  = "application/json"
        "content-type" = "application/json"
        "api-key" = $Global:ApiKey
    }

    $Body = @{ emails = @($Email) } | ConvertTo-Json -Depth 3

    try {
        $response = Invoke-WebRequest -Uri "https://api.brevo.com/v3/contacts/lists/$IdListe/contacts/add" `
                                      -Method POST `
                                      -Headers $headers `
                                      -ContentType 'application/json' `
                                      -Body $Body
        return [PSCustomObject]@{ Success = $true; Value = $response.Content }
    }
    catch {
        return [PSCustomObject]@{ Success = $false; Value = "Erreur lors de l'ajout de l'utilisateur $Email à la liste $IdListe : $($_.Exception.Message)" }
    }
}

function RemoveContactFromListBrevo{
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$Email,
        [Parameter(Mandatory=$true)]
        [string]$IdListe
    )
    
    if (-not $Global:ApiKey) {
        return [PSCustomObject]@{ Success = $false; Value = "La clé API n'est pas définie" }
    }

    $headers = @{
        "accept"  = "application/json"
        "content-type" = "application/json"
        "api-key" = $Global:ApiKey
    }

    $Body = @{ emails = @($Email) } | ConvertTo-Json -Depth 3

    try {
        $response = Invoke-WebRequest -Uri "https://api.brevo.com/v3/contacts/lists/$IdListe/contacts/remove" `
                                      -Method POST `
                                      -Headers $headers `
                                      -ContentType 'application/json' `
                                      -Body $Body
        return [PSCustomObject]@{ Success = $true; Value = $response.Content }
    }
    catch {
        return [PSCustomObject]@{ Success = $false; Value = "Erreur lors de la suppresion de l'utilisateur $Email à la liste $IdListe : $($_.Exception.Message)" }
    }
}

function RemoveContactFromBrevo{
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$Email
    )
    
    if (-not $Global:ApiKey) {
        return [PSCustomObject]@{ Success = $false; Value = "La clé API n'est pas définie" }
    }

    $headers = @{
        "accept"  = "application/json"
        "content-type" = "application/json"
        "api-key" = $Global:ApiKey
    }

    try {
        $response = Invoke-WebRequest -Uri "https://api.brevo.com/v3/contacts/$Email" `
                                      -Method DELETE `
                                      -Headers $headers `
                                      -ContentType 'application/json'
        return [PSCustomObject]@{ Success = $true; Value = $response.Content }
    }
    catch {
        return [PSCustomObject]@{ Success = $false; Value = "Erreur lors de la suppresion de l'utilisateur $Email à la liste $IdListe : $($_.Exception.Message)" }
    }
}